Merge branch 'main' into codex/add-contact-form-example-components

dbal/development/src/adapters/acl-adapter.ts

@@ -1,3 +1,3 @@
-export { ACLAdapter } from './acl-adapter/index'
-export type { User, ACLRule } from './acl/types'
+export { ACLAdapter } from './acl-adapter'
+export type { ACLAdapterOptions, ACLContext, ACLRule, User } from './acl-adapter/types'
 export { defaultACLRules } from './acl/default-rules'

dbal/development/src/adapters/acl-adapter/acl-adapter.ts

@@ -0,0 +1,86 @@
+import type { AdapterCapabilities, DBALAdapter } from '../adapter'
+import type { ListOptions, ListResult } from '../../core/foundation/types'
+import { createContext } from './context'
+import { createReadStrategy } from './read-strategy'
+import { createWriteStrategy } from './write-strategy'
+import type { ACLAdapterOptions, ACLContext, ACLRule, User } from './types'
+
+export class ACLAdapter implements DBALAdapter {
+  private readonly context: ACLContext
+  private readonly readStrategy: ReturnType<typeof createReadStrategy>
+  private readonly writeStrategy: ReturnType<typeof createWriteStrategy>
+
+  constructor(baseAdapter: DBALAdapter, user: User, options?: ACLAdapterOptions) {
+    this.context = createContext(baseAdapter, user, options)
+    this.readStrategy = createReadStrategy(this.context)
+    this.writeStrategy = createWriteStrategy(this.context)
+  }
+
+  async create(entity: string, data: Record<string, unknown>): Promise<unknown> {
+    return this.writeStrategy.create(entity, data)
+  }
+
+  async read(entity: string, id: string): Promise<unknown | null> {
+    return this.readStrategy.read(entity, id)
+  }
+
+  async update(entity: string, id: string, data: Record<string, unknown>): Promise<unknown> {
+    return this.writeStrategy.update(entity, id, data)
+  }
+
+  async delete(entity: string, id: string): Promise<boolean> {
+    return this.writeStrategy.delete(entity, id)
+  }
+
+  async list(entity: string, options?: ListOptions): Promise<ListResult<unknown>> {
+    return this.readStrategy.list(entity, options)
+  }
+
+  async findFirst(entity: string, filter?: Record<string, unknown>): Promise<unknown | null> {
+    return this.readStrategy.findFirst(entity, filter)
+  }
+
+  async findByField(entity: string, field: string, value: unknown): Promise<unknown | null> {
+    return this.readStrategy.findByField(entity, field, value)
+  }
+
+  async upsert(
+    entity: string,
+    filter: Record<string, unknown>,
+    createData: Record<string, unknown>,
+    updateData: Record<string, unknown>,
+  ): Promise<unknown> {
+    return this.writeStrategy.upsert(entity, filter, createData, updateData)
+  }
+
+  async updateByField(entity: string, field: string, value: unknown, data: Record<string, unknown>): Promise<unknown> {
+    return this.writeStrategy.updateByField(entity, field, value, data)
+  }
+
+  async deleteByField(entity: string, field: string, value: unknown): Promise<boolean> {
+    return this.writeStrategy.deleteByField(entity, field, value)
+  }
+
+  async createMany(entity: string, data: Record<string, unknown>[]): Promise<number> {
+    return this.writeStrategy.createMany(entity, data)
+  }
+
+  async updateMany(entity: string, filter: Record<string, unknown>, data: Record<string, unknown>): Promise<number> {
+    return this.writeStrategy.updateMany(entity, filter, data)
+  }
+
+  async deleteMany(entity: string, filter?: Record<string, unknown>): Promise<number> {
+    return this.writeStrategy.deleteMany(entity, filter)
+  }
+
+  async getCapabilities(): Promise<AdapterCapabilities> {
+    return this.context.baseAdapter.getCapabilities()
+  }
+
+  async close(): Promise<void> {
+    await this.context.baseAdapter.close()
+  }
+}
+
+export type { ACLAdapterOptions, ACLContext, ACLRule, User }
+export { defaultACLRules } from '../acl/default-rules'

dbal/development/src/adapters/acl-adapter/context.ts

@@ -1,20 +1,12 @@
 import type { DBALAdapter } from '../adapter'
-import type { User, ACLRule } from '../acl/types'
+import type { ACLAdapterOptions, ACLContext, ACLRule, User } from './types'
 import { logAudit } from '../acl/audit-logger'
 import { defaultACLRules } from '../acl/default-rules'
 
-export interface ACLContext {
-  baseAdapter: DBALAdapter
-  user: User
-  rules: ACLRule[]
-  auditLog: boolean
-  logger: (entity: string, operation: string, success: boolean, message?: string) => void
-}
-
 export const createContext = (
   baseAdapter: DBALAdapter,
   user: User,
-  options?: { rules?: ACLRule[]; auditLog?: boolean },
+  options?: ACLAdapterOptions,
 ): ACLContext => {
   const auditLog = options?.auditLog ?? true
   const rules = options?.rules || defaultACLRules

dbal/development/src/adapters/acl-adapter/guards.ts

@@ -1,7 +1,7 @@
 import { checkPermission } from '../acl/check-permission'
 import { checkRowLevelAccess } from '../acl/check-row-level-access'
 import { resolvePermissionOperation } from '../acl/resolve-permission-operation'
-import type { ACLContext } from './context'
+import type { ACLContext } from './types'
 
 export const enforcePermission = (context: ACLContext, entity: string, operation: string) => {
   checkPermission(entity, operation, context.user, context.rules, context.logger)

dbal/development/src/adapters/acl-adapter/index.ts

@@ -1,92 +1,3 @@
-import type { AdapterCapabilities, DBALAdapter } from '../adapter'
-import type { ListOptions, ListResult } from '../../core/foundation/types'
-import type { User, ACLRule } from '../acl/types'
-import type { ACLContext } from './context'
-import { createContext } from './context'
-import { createEntity, deleteEntity, listEntities, readEntity, updateEntity } from './crud'
-import {
-  createMany,
-  deleteByField,
-  deleteMany,
-  findByField,
-  findFirst,
-  updateByField,
-  updateMany,
-  upsert,
-} from './bulk'
-
-export class ACLAdapter implements DBALAdapter {
-  private readonly context: ACLContext
-
-  constructor(baseAdapter: DBALAdapter, user: User, options?: { rules?: ACLRule[]; auditLog?: boolean }) {
-    this.context = createContext(baseAdapter, user, options)
-  }
-
-  async create(entity: string, data: Record<string, unknown>): Promise<unknown> {
-    return createEntity(this.context)(entity, data)
-  }
-
-  async read(entity: string, id: string): Promise<unknown | null> {
-    return readEntity(this.context)(entity, id)
-  }
-
-  async update(entity: string, id: string, data: Record<string, unknown>): Promise<unknown> {
-    return updateEntity(this.context)(entity, id, data)
-  }
-
-  async delete(entity: string, id: string): Promise<boolean> {
-    return deleteEntity(this.context)(entity, id)
-  }
-
-  async list(entity: string, options?: ListOptions): Promise<ListResult<unknown>> {
-    return listEntities(this.context)(entity, options)
-  }
-
-  async findFirst(entity: string, filter?: Record<string, unknown>): Promise<unknown | null> {
-    return findFirst(this.context)(entity, filter)
-  }
-
-  async findByField(entity: string, field: string, value: unknown): Promise<unknown | null> {
-    return findByField(this.context)(entity, field, value)
-  }
-
-  async upsert(
-    entity: string,
-    filter: Record<string, unknown>,
-    createData: Record<string, unknown>,
-    updateData: Record<string, unknown>,
-  ): Promise<unknown> {
-    return upsert(this.context)(entity, filter, createData, updateData)
-  }
-
-  async updateByField(entity: string, field: string, value: unknown, data: Record<string, unknown>): Promise<unknown> {
-    return updateByField(this.context)(entity, field, value, data)
-  }
-
-  async deleteByField(entity: string, field: string, value: unknown): Promise<boolean> {
-    return deleteByField(this.context)(entity, field, value)
-  }
-
-  async createMany(entity: string, data: Record<string, unknown>[]): Promise<number> {
-    return createMany(this.context)(entity, data)
-  }
-
-  async updateMany(entity: string, filter: Record<string, unknown>, data: Record<string, unknown>): Promise<number> {
-    return updateMany(this.context)(entity, filter, data)
-  }
-
-  async deleteMany(entity: string, filter?: Record<string, unknown>): Promise<number> {
-    return deleteMany(this.context)(entity, filter)
-  }
-
-  async getCapabilities(): Promise<AdapterCapabilities> {
-    return this.context.baseAdapter.getCapabilities()
-  }
-
-  async close(): Promise<void> {
-    await this.context.baseAdapter.close()
-  }
-}
-
-export type { User, ACLRule } from './acl/types'
-export { defaultACLRules } from './acl/default-rules'
+export { ACLAdapter } from './acl-adapter'
+export type { ACLAdapterOptions, ACLContext, ACLRule, User } from './types'
+export { defaultACLRules } from '../acl/default-rules'

dbal/development/src/adapters/acl-adapter/read-strategy.ts

@@ -0,0 +1,48 @@
+import type { ListOptions, ListResult } from '../../core/foundation/types'
+import { enforceRowAccess, resolveOperation, withAudit } from './guards'
+import type { ACLContext } from './types'
+
+export const createReadStrategy = (context: ACLContext) => {
+  const read = async (entity: string, id: string): Promise<unknown | null> => {
+    return withAudit(context, entity, 'read', async () => {
+      const result = await context.baseAdapter.read(entity, id)
+      if (result) {
+        enforceRowAccess(context, entity, 'read', result as Record<string, unknown>)
+      }
+      return result
+    })
+  }
+
+  const list = async (entity: string, options?: ListOptions): Promise<ListResult<unknown>> => {
+    return withAudit(context, entity, 'list', () => context.baseAdapter.list(entity, options))
+  }
+
+  const findFirst = async (entity: string, filter?: Record<string, unknown>): Promise<unknown | null> => {
+    const operation = resolveOperation('findFirst')
+    return withAudit(context, entity, operation, async () => {
+      const result = await context.baseAdapter.findFirst(entity, filter)
+      if (result) {
+        enforceRowAccess(context, entity, operation, result as Record<string, unknown>)
+      }
+      return result
+    })
+  }
+
+  const findByField = async (entity: string, field: string, value: unknown): Promise<unknown | null> => {
+    const operation = resolveOperation('findByField')
+    return withAudit(context, entity, operation, async () => {
+      const result = await context.baseAdapter.findByField(entity, field, value)
+      if (result) {
+        enforceRowAccess(context, entity, operation, result as Record<string, unknown>)
+      }
+      return result
+    })
+  }
+
+  return {
+    read,
+    list,
+    findFirst,
+    findByField,
+  }
+}

dbal/development/src/adapters/acl-adapter/types.ts

@@ -0,0 +1,27 @@
+import type { DBALAdapter } from '../adapter'
+
+export interface User {
+  id: string
+  username: string
+  role: 'user' | 'admin' | 'god' | 'supergod'
+}
+
+export interface ACLRule {
+  entity: string
+  roles: string[]
+  operations: string[]
+  rowLevelFilter?: (user: User, data: Record<string, unknown>) => boolean
+}
+
+export interface ACLAdapterOptions {
+  rules?: ACLRule[]
+  auditLog?: boolean
+}
+
+export interface ACLContext {
+  baseAdapter: DBALAdapter
+  user: User
+  rules: ACLRule[]
+  auditLog: boolean
+  logger: (entity: string, operation: string, success: boolean, message?: string) => void
+}

dbal/development/src/adapters/acl-adapter/write-strategy.ts

@@ -0,0 +1,83 @@
+import { enforceRowAccess, resolveOperation, withAudit } from './guards'
+import type { ACLContext } from './types'
+
+export const createWriteStrategy = (context: ACLContext) => {
+  const create = async (entity: string, data: Record<string, unknown>): Promise<unknown> => {
+    return withAudit(context, entity, 'create', () => context.baseAdapter.create(entity, data))
+  }
+
+  const update = async (entity: string, id: string, data: Record<string, unknown>): Promise<unknown> => {
+    return withAudit(context, entity, 'update', async () => {
+      const existing = await context.baseAdapter.read(entity, id)
+      if (existing) {
+        enforceRowAccess(context, entity, 'update', existing as Record<string, unknown>)
+      }
+      return context.baseAdapter.update(entity, id, data)
+    })
+  }
+
+  const remove = async (entity: string, id: string): Promise<boolean> => {
+    return withAudit(context, entity, 'delete', async () => {
+      const existing = await context.baseAdapter.read(entity, id)
+      if (existing) {
+        enforceRowAccess(context, entity, 'delete', existing as Record<string, unknown>)
+      }
+      return context.baseAdapter.delete(entity, id)
+    })
+  }
+
+  const upsert = async (
+    entity: string,
+    filter: Record<string, unknown>,
+    createData: Record<string, unknown>,
+    updateData: Record<string, unknown>,
+  ): Promise<unknown> => {
+    return withAudit(context, entity, 'upsert', () => context.baseAdapter.upsert(entity, filter, createData, updateData))
+  }
+
+  const updateByField = async (
+    entity: string,
+    field: string,
+    value: unknown,
+    data: Record<string, unknown>,
+  ): Promise<unknown> => {
+    const operation = resolveOperation('updateByField')
+    return withAudit(context, entity, operation, () => context.baseAdapter.updateByField(entity, field, value, data))
+  }
+
+  const deleteByField = async (entity: string, field: string, value: unknown): Promise<boolean> => {
+    const operation = resolveOperation('deleteByField')
+    return withAudit(context, entity, operation, () => context.baseAdapter.deleteByField(entity, field, value))
+  }
+
+  const createMany = async (entity: string, data: Record<string, unknown>[]): Promise<number> => {
+    const operation = resolveOperation('createMany')
+    return withAudit(context, entity, operation, () => context.baseAdapter.createMany(entity, data))
+  }
+
+  const updateMany = async (
+    entity: string,
+    filter: Record<string, unknown>,
+    data: Record<string, unknown>,
+  ): Promise<number> => {
+    const operation = resolveOperation('updateMany')
+    return withAudit(context, entity, operation, () => context.baseAdapter.updateMany(entity, filter, data))
+  }
+
+  const deleteMany = async (entity: string, filter?: Record<string, unknown>): Promise<number> => {
+    const operation = resolveOperation('deleteMany')
+    return withAudit(context, entity, operation, () => context.baseAdapter.deleteMany(entity, filter))
+  }
+
+  return {
+    create,
+    update,
+    delete: remove,
+    upsert,
+    updateByField,
+    deleteByField,
+    createMany,
+    updateMany,
+    deleteMany,
+  }
+}

dbal/development/src/adapters/acl/audit-logger.ts

@@ -3,7 +3,7 @@
  * @description Audit logging for ACL operations
  */
 
-import type { User } from './types'
+import type { User } from '../acl-adapter/types'
 
 /**
  * Log audit entry for ACL operation

dbal/development/src/adapters/acl/check-permission.ts

@@ -4,7 +4,7 @@
  */
 
 import { DBALError } from '../../core/foundation/errors'
-import type { User, ACLRule } from './types'
+import type { ACLRule, User } from '../acl-adapter/types'
 
 /**
  * Check if user has permission to perform operation on entity

dbal/development/src/adapters/acl/check-row-level-access.ts

@@ -4,7 +4,7 @@
  */
 
 import { DBALError } from '../../core/foundation/errors'
-import type { User, ACLRule } from './types'
+import type { ACLRule, User } from '../acl-adapter/types'
 
 /**
  * Check row-level access for specific data

dbal/development/src/adapters/acl/default-rules.ts

@@ -3,7 +3,7 @@
  * @description Default ACL rules for entities
  */
 
-import type { ACLRule } from './types'
+import type { ACLRule } from '../acl-adapter/types'
 
 export const defaultACLRules: ACLRule[] = [
   {

dbal/development/src/blob/providers/memory-storage/downloads.ts

@@ -1,17 +1,15 @@
 import { DBALError } from '../../core/foundation/errors'
 import type { DownloadOptions } from '../blob-storage'
 import type { MemoryStore } from './store'
+import { getBlobOrThrow, normalizeKey } from './utils'
 
 export const downloadBuffer = (
   store: MemoryStore,
   key: string,
   options: DownloadOptions = {},
 ): Buffer => {
-  const blob = store.get(key)
-
-  if (!blob) {
-    throw DBALError.notFound(`Blob not found: ${key}`)
-  }
+  const normalizedKey = normalizeKey(key)
+  const blob = getBlobOrThrow(store, normalizedKey)
 
   let data = blob.data
 

dbal/development/src/blob/providers/memory-storage/index.ts

@@ -10,6 +10,7 @@ import { createStore } from './store'
 import { uploadBuffer, uploadFromStream } from './uploads'
 import { downloadBuffer, downloadStream } from './downloads'
 import { copyBlob, deleteBlob, getMetadata, listBlobs, getObjectCount, getTotalSize } from './management'
+import { normalizeKey } from './utils'
 
 export class MemoryStorage implements BlobStorage {
   private store = createStore()
@@ -43,7 +44,7 @@ export class MemoryStorage implements BlobStorage {
   }
 
   async exists(key: string): Promise<boolean> {
-    return this.store.has(key)
+    return this.store.has(normalizeKey(key))
   }
 
   async getMetadata(key: string): Promise<BlobMetadata> {

dbal/development/src/blob/providers/memory-storage/management.ts

@@ -1,29 +1,29 @@
 import { DBALError } from '../../core/foundation/errors'
 import type { BlobListOptions, BlobListResult, BlobMetadata } from '../blob-storage'
-import { makeBlobMetadata } from './store'
 import type { MemoryStore } from './store'
+import { toBlobMetadata } from './serialization'
+import { cleanupStoreEntry, getBlobOrThrow, normalizeKey } from './utils'
 
 export const deleteBlob = async (store: MemoryStore, key: string): Promise<boolean> => {
-  if (!store.has(key)) {
-    throw DBALError.notFound(`Blob not found: ${key}`)
+  const normalizedKey = normalizeKey(key)
+
+  if (!store.has(normalizedKey)) {
+    throw DBALError.notFound(`Blob not found: ${normalizedKey}`)
   }
 
-  store.delete(key)
+  cleanupStoreEntry(store, normalizedKey)
   return true
 }
 
 export const getMetadata = (store: MemoryStore, key: string): BlobMetadata => {
-  const blob = store.get(key)
+  const normalizedKey = normalizeKey(key)
+  const blob = getBlobOrThrow(store, normalizedKey)
 
-  if (!blob) {
-    throw DBALError.notFound(`Blob not found: ${key}`)
-  }
-
-  return makeBlobMetadata(key, blob)
+  return toBlobMetadata(normalizedKey, blob)
 }
 
 export const listBlobs = (store: MemoryStore, options: BlobListOptions = {}): BlobListResult => {
-  const prefix = options.prefix || ''
+  const prefix = options.prefix ? normalizeKey(options.prefix) : ''
   const maxKeys = options.maxKeys || 1000
 
   const items: BlobMetadata[] = []
@@ -35,7 +35,7 @@ export const listBlobs = (store: MemoryStore, options: BlobListOptions = {}): Bl
         nextToken = key
         break
       }
-      items.push(makeBlobMetadata(key, blob))
+      items.push(toBlobMetadata(key, blob))
     }
   }
 
@@ -47,11 +47,9 @@ export const listBlobs = (store: MemoryStore, options: BlobListOptions = {}): Bl
 }
 
 export const copyBlob = (store: MemoryStore, sourceKey: string, destKey: string): BlobMetadata => {
-  const sourceBlob = store.get(sourceKey)
-
-  if (!sourceBlob) {
-    throw DBALError.notFound(`Source blob not found: ${sourceKey}`)
-  }
+  const normalizedSourceKey = normalizeKey(sourceKey)
+  const normalizedDestKey = normalizeKey(destKey)
+  const sourceBlob = getBlobOrThrow(store, normalizedSourceKey)
 
   const destBlob = {
     ...sourceBlob,
@@ -59,8 +57,8 @@ export const copyBlob = (store: MemoryStore, sourceKey: string, destKey: string)
     lastModified: new Date(),
   }
 
-  store.set(destKey, destBlob)
-  return makeBlobMetadata(destKey, destBlob)
+  store.set(normalizedDestKey, destBlob)
+  return toBlobMetadata(normalizedDestKey, destBlob)
 }
 
 export const getTotalSize = (store: MemoryStore): number => {

dbal/development/src/blob/providers/memory-storage/serialization.ts

@@ -0,0 +1,43 @@
+import { createHash } from 'crypto'
+import type { UploadOptions, BlobMetadata } from '../blob-storage'
+import type { BlobData } from './store'
+
+export const generateEtag = (data: Buffer): string => `"${createHash('md5').update(data).digest('hex')}"`
+
+export const toBlobData = (data: Buffer, options: UploadOptions = {}): BlobData => ({
+  data,
+  contentType: options.contentType || 'application/octet-stream',
+  etag: generateEtag(data),
+  lastModified: new Date(),
+  metadata: options.metadata || {},
+})
+
+export const toBlobMetadata = (key: string, blob: BlobData): BlobMetadata => ({
+  key,
+  size: blob.data.length,
+  contentType: blob.contentType,
+  etag: blob.etag,
+  lastModified: blob.lastModified,
+  customMetadata: blob.metadata,
+})
+
+export const collectStream = async (
+  stream: ReadableStream | NodeJS.ReadableStream,
+): Promise<Buffer> => {
+  const chunks: Buffer[] = []
+
+  if ('getReader' in stream) {
+    const reader = stream.getReader()
+    while (true) {
+      const { done, value } = await reader.read()
+      if (done) break
+      chunks.push(Buffer.from(value))
+    }
+  } else {
+    for await (const chunk of stream) {
+      chunks.push(Buffer.from(chunk))
+    }
+  }
+
+  return Buffer.concat(chunks)
+}

dbal/development/src/blob/providers/memory-storage/store.ts

@@ -1,6 +1,3 @@
-import type { BlobMetadata } from '../blob-storage'
-import { createHash } from 'crypto'
-
 export interface BlobData {
   data: Buffer
   contentType: string
@@ -12,14 +9,3 @@ export interface BlobData {
 export type MemoryStore = Map<string, BlobData>
 
 export const createStore = (): MemoryStore => new Map()
-
-export const generateEtag = (data: Buffer): string => `"${createHash('md5').update(data).digest('hex')}"`
-
-export const makeBlobMetadata = (key: string, blob: BlobData): BlobMetadata => ({
-  key,
-  size: blob.data.length,
-  contentType: blob.contentType,
-  etag: blob.etag,
-  lastModified: blob.lastModified,
-  customMetadata: blob.metadata,
-})

dbal/development/src/blob/providers/memory-storage/uploads.ts

@@ -1,7 +1,8 @@
 import { DBALError } from '../../core/foundation/errors'
 import type { UploadOptions } from '../blob-storage'
-import type { BlobData, MemoryStore } from './store'
-import { generateEtag, makeBlobMetadata } from './store'
+import type { MemoryStore } from './store'
+import { collectStream, toBlobData, toBlobMetadata } from './serialization'
+import { normalizeKey } from './utils'
 
 export const uploadBuffer = (
   store: MemoryStore,
@@ -9,43 +10,17 @@ export const uploadBuffer = (
   data: Buffer | Uint8Array,
   options: UploadOptions = {},
 ) => {
+  const normalizedKey = normalizeKey(key)
   const buffer = Buffer.from(data)
 
-  if (!options.overwrite && store.has(key)) {
-    throw DBALError.conflict(`Blob already exists: ${key}`)
+  if (!options.overwrite && store.has(normalizedKey)) {
+    throw DBALError.conflict(`Blob already exists: ${normalizedKey}`)
   }
 
-  const blob: BlobData = {
-    data: buffer,
-    contentType: options.contentType || 'application/octet-stream',
-    etag: generateEtag(buffer),
-    lastModified: new Date(),
-    metadata: options.metadata || {},
-  }
+  const blob = toBlobData(buffer, options)
 
-  store.set(key, blob)
-  return makeBlobMetadata(key, blob)
-}
-
-export const collectStream = async (
-  stream: ReadableStream | NodeJS.ReadableStream,
-): Promise<Buffer> => {
-  const chunks: Buffer[] = []
-
-  if ('getReader' in stream) {
-    const reader = stream.getReader()
-    while (true) {
-      const { done, value } = await reader.read()
-      if (done) break
-      chunks.push(Buffer.from(value))
-    }
-  } else {
-    for await (const chunk of stream) {
-      chunks.push(Buffer.from(chunk))
-    }
-  }
-
-  return Buffer.concat(chunks)
+  store.set(normalizedKey, blob)
+  return toBlobMetadata(normalizedKey, blob)
 }
 
 export const uploadFromStream = async (

dbal/development/src/blob/providers/memory-storage/utils.ts

@@ -0,0 +1,18 @@
+import { DBALError } from '../../core/foundation/errors'
+import type { BlobData, MemoryStore } from './store'
+
+export const normalizeKey = (key: string): string => key.replace(/^\/+/, '').trim()
+
+export const getBlobOrThrow = (store: MemoryStore, key: string): BlobData => {
+  const blob = store.get(key)
+
+  if (!blob) {
+    throw DBALError.notFound(`Blob not found: ${key}`)
+  }
+
+  return blob
+}
+
+export const cleanupStoreEntry = (store: MemoryStore, key: string): void => {
+  store.delete(key)
+}

dbal/development/src/blob/providers/tenant-aware-storage.ts

@@ -1 +1,5 @@
 export { TenantAwareBlobStorage } from './tenant-aware-storage/index'
+export type { TenantAwareDeps } from './tenant-aware-storage/context'
+export { scopeKey, unscopeKey } from './tenant-aware-storage/context'
+export { ensurePermission, resolveTenantContext } from './tenant-aware-storage/tenant-context'
+export { auditCopy, auditDeletion, auditUpload } from './tenant-aware-storage/audit-hooks'

dbal/development/src/blob/providers/tenant-aware-storage/audit-hooks.ts

@@ -0,0 +1,17 @@
+import type { TenantAwareDeps } from './context'
+
+const recordUsageChange = async (deps: TenantAwareDeps, bytesChange: number, countChange: number): Promise<void> => {
+  await deps.tenantManager.updateBlobUsage(deps.tenantId, bytesChange, countChange)
+}
+
+export const auditUpload = async (deps: TenantAwareDeps, sizeBytes: number): Promise<void> => {
+  await recordUsageChange(deps, sizeBytes, 1)
+}
+
+export const auditDeletion = async (deps: TenantAwareDeps, sizeBytes: number): Promise<void> => {
+  await recordUsageChange(deps, -sizeBytes, -1)
+}
+
+export const auditCopy = async (deps: TenantAwareDeps, sizeBytes: number): Promise<void> => {
+  await recordUsageChange(deps, sizeBytes, 1)
+}

dbal/development/src/blob/providers/tenant-aware-storage/context.ts

@@ -1,5 +1,4 @@
-import { DBALError } from '../../core/foundation/errors'
-import type { TenantContext, TenantManager } from '../../core/foundation/tenant-context'
+import type { TenantManager } from '../../core/foundation/tenant-context'
 import type { BlobStorage } from '../blob-storage'
 
 export interface TenantAwareDeps {
@@ -9,10 +8,6 @@ export interface TenantAwareDeps {
   userId: string
 }
 
-export const getContext = async ({ tenantManager, tenantId, userId }: TenantAwareDeps): Promise<TenantContext> => {
-  return tenantManager.getTenantContext(tenantId, userId)
-}
-
 export const scopeKey = (key: string, namespace: string): string => {
   const cleanKey = key.startsWith('/') ? key.substring(1) : key
   return `${namespace}${cleanKey}`
@@ -24,17 +19,3 @@ export const unscopeKey = (scopedKey: string, namespace: string): string => {
   }
   return scopedKey
 }
-
-export const ensurePermission = (context: TenantContext, action: 'read' | 'write' | 'delete'): void => {
-  const accessCheck =
-    action === 'read' ? context.canRead('blob') : action === 'write' ? context.canWrite('blob') : context.canDelete('blob')
-
-  if (!accessCheck) {
-    const verbs: Record<typeof action, string> = {
-      read: 'read',
-      write: 'write',
-      delete: 'delete',
-    }
-    throw DBALError.forbidden(`Permission denied: cannot ${verbs[action]} blobs`)
-  }
-}

dbal/development/src/blob/providers/tenant-aware-storage/mutations.ts

@@ -1,10 +1,12 @@
 import { DBALError } from '../../core/foundation/errors'
 import type { BlobMetadata } from '../blob-storage'
-import { ensurePermission, getContext, scopeKey } from './context'
+import { auditCopy, auditDeletion } from './audit-hooks'
 import type { TenantAwareDeps } from './context'
+import { scopeKey } from './context'
+import { ensurePermission, resolveTenantContext } from './tenant-context'
 
 export const deleteBlob = async (deps: TenantAwareDeps, key: string): Promise<boolean> => {
-  const context = await getContext(deps)
+  const context = await resolveTenantContext(deps)
   ensurePermission(context, 'delete')
 
   const scopedKey = scopeKey(key, context.namespace)
@@ -14,7 +16,7 @@ export const deleteBlob = async (deps: TenantAwareDeps, key: string): Promise<bo
     const deleted = await deps.baseStorage.delete(scopedKey)
 
     if (deleted) {
-      await deps.tenantManager.updateBlobUsage(deps.tenantId, -metadata.size, -1)
+      await auditDeletion(deps, metadata.size)
     }
 
     return deleted
@@ -24,7 +26,7 @@ export const deleteBlob = async (deps: TenantAwareDeps, key: string): Promise<bo
 }
 
 export const exists = async (deps: TenantAwareDeps, key: string): Promise<boolean> => {
-  const context = await getContext(deps)
+  const context = await resolveTenantContext(deps)
   ensurePermission(context, 'read')
 
   const scopedKey = scopeKey(key, context.namespace)
@@ -36,7 +38,7 @@ export const copyBlob = async (
   sourceKey: string,
   destKey: string,
 ): Promise<BlobMetadata> => {
-  const context = await getContext(deps)
+  const context = await resolveTenantContext(deps)
   ensurePermission(context, 'read')
   ensurePermission(context, 'write')
 
@@ -50,7 +52,7 @@ export const copyBlob = async (
   const destScoped = scopeKey(destKey, context.namespace)
   const metadata = await deps.baseStorage.copy(sourceScoped, destScoped)
 
-  await deps.tenantManager.updateBlobUsage(deps.tenantId, sourceMetadata.size, 1)
+  await auditCopy(deps, sourceMetadata.size)
 
   return {
     ...metadata,
@@ -59,7 +61,7 @@ export const copyBlob = async (
 }
 
 export const getStats = async (deps: TenantAwareDeps) => {
-  const context = await getContext(deps)
+  const context = await resolveTenantContext(deps)
   return {
     count: context.quota.currentBlobCount,
     totalSize: context.quota.currentBlobStorageBytes,

dbal/development/src/blob/providers/tenant-aware-storage/reads.ts

@@ -1,9 +1,10 @@
 import type { DownloadOptions, BlobMetadata, BlobListOptions, BlobListResult } from '../blob-storage'
-import { ensurePermission, getContext, scopeKey, unscopeKey } from './context'
 import type { TenantAwareDeps } from './context'
+import { scopeKey, unscopeKey } from './context'
+import { ensurePermission, resolveTenantContext } from './tenant-context'
 
 export const downloadBuffer = async (deps: TenantAwareDeps, key: string): Promise<Buffer> => {
-  const context = await getContext(deps)
+  const context = await resolveTenantContext(deps)
   ensurePermission(context, 'read')
 
   const scopedKey = scopeKey(key, context.namespace)
@@ -15,7 +16,7 @@ export const downloadStream = async (
   key: string,
   options?: DownloadOptions,
 ): Promise<ReadableStream | NodeJS.ReadableStream> => {
-  const context = await getContext(deps)
+  const context = await resolveTenantContext(deps)
   ensurePermission(context, 'read')
 
   const scopedKey = scopeKey(key, context.namespace)
@@ -26,7 +27,7 @@ export const listBlobs = async (
   deps: TenantAwareDeps,
   options: BlobListOptions = {},
 ): Promise<BlobListResult> => {
-  const context = await getContext(deps)
+  const context = await resolveTenantContext(deps)
   ensurePermission(context, 'read')
 
   const scopedOptions: BlobListOptions = {
@@ -46,7 +47,7 @@ export const listBlobs = async (
 }
 
 export const getMetadata = async (deps: TenantAwareDeps, key: string): Promise<BlobMetadata> => {
-  const context = await getContext(deps)
+  const context = await resolveTenantContext(deps)
   ensurePermission(context, 'read')
 
   const scopedKey = scopeKey(key, context.namespace)
@@ -63,7 +64,7 @@ export const generatePresignedUrl = async (
   key: string,
   expiresIn: number,
 ): Promise<string> => {
-  const context = await getContext(deps)
+  const context = await resolveTenantContext(deps)
   ensurePermission(context, 'read')
 
   const scopedKey = scopeKey(key, context.namespace)

dbal/development/src/blob/providers/tenant-aware-storage/tenant-context.ts

@@ -0,0 +1,21 @@
+import { DBALError } from '../../core/foundation/errors'
+import type { TenantContext } from '../../core/foundation/tenant-context'
+import type { TenantAwareDeps } from './context'
+
+export const resolveTenantContext = async ({ tenantManager, tenantId, userId }: TenantAwareDeps): Promise<TenantContext> => {
+  return tenantManager.getTenantContext(tenantId, userId)
+}
+
+export const ensurePermission = (context: TenantContext, action: 'read' | 'write' | 'delete'): void => {
+  const accessCheck =
+    action === 'read' ? context.canRead('blob') : action === 'write' ? context.canWrite('blob') : context.canDelete('blob')
+
+  if (!accessCheck) {
+    const verbs: Record<typeof action, string> = {
+      read: 'read',
+      write: 'write',
+      delete: 'delete',
+    }
+    throw DBALError.forbidden(`Permission denied: cannot ${verbs[action]} blobs`)
+  }
+}

dbal/development/src/blob/providers/tenant-aware-storage/uploads.ts

@@ -1,7 +1,9 @@
 import { DBALError } from '../../core/foundation/errors'
-import type { UploadOptions, BlobMetadata } from '../blob-storage'
+import { auditUpload } from './audit-hooks'
 import type { TenantAwareDeps } from './context'
-import { ensurePermission, getContext, scopeKey } from './context'
+import { scopeKey } from './context'
+import { ensurePermission, resolveTenantContext } from './tenant-context'
+import type { UploadOptions, BlobMetadata } from '../blob-storage'
 
 export const uploadBuffer = async (
   deps: TenantAwareDeps,
@@ -9,7 +11,7 @@ export const uploadBuffer = async (
   data: Buffer,
   options?: UploadOptions,
 ): Promise<BlobMetadata> => {
-  const context = await getContext(deps)
+  const context = await resolveTenantContext(deps)
   ensurePermission(context, 'write')
 
   if (!context.canUploadBlob(data.length)) {
@@ -18,7 +20,7 @@ export const uploadBuffer = async (
 
   const scopedKey = scopeKey(key, context.namespace)
   const metadata = await deps.baseStorage.upload(scopedKey, data, options)
-  await deps.tenantManager.updateBlobUsage(deps.tenantId, data.length, 1)
+  await auditUpload(deps, data.length)
 
   return {
     ...metadata,
@@ -33,7 +35,7 @@ export const uploadStream = async (
   size: number,
   options?: UploadOptions,
 ): Promise<BlobMetadata> => {
-  const context = await getContext(deps)
+  const context = await resolveTenantContext(deps)
   ensurePermission(context, 'write')
 
   if (!context.canUploadBlob(size)) {
@@ -42,7 +44,7 @@ export const uploadStream = async (
 
   const scopedKey = scopeKey(key, context.namespace)
   const metadata = await deps.baseStorage.uploadStream(scopedKey, stream, size, options)
-  await deps.tenantManager.updateBlobUsage(deps.tenantId, size, 1)
+  await auditUpload(deps, size)
 
   return {
     ...metadata,

dbal/development/src/bridges/websocket-bridge/connection-manager.ts

@@ -0,0 +1,90 @@
+import { DBALError } from '../../core/foundation/errors'
+import type { RPCMessage } from '../utils/rpc-types'
+import type { BridgeState } from './state'
+import type { MessageRouter } from './message-router'
+
+export interface ConnectionManager {
+  ensureConnection: () => Promise<void>
+  send: (message: RPCMessage) => Promise<void>
+  close: () => Promise<void>
+}
+
+export const createConnectionManager = (
+  state: BridgeState,
+  messageRouter: MessageRouter,
+): ConnectionManager => {
+  let connectionPromise: Promise<void> | null = null
+
+  const resetConnection = () => {
+    connectionPromise = null
+    state.ws = null
+  }
+
+  const rejectPendingRequests = (error: DBALError) => {
+    state.pendingRequests.forEach(({ reject }) => reject(error))
+    state.pendingRequests.clear()
+  }
+
+  const ensureConnection = async (): Promise<void> => {
+    if (state.ws?.readyState === WebSocket.OPEN) {
+      return
+    }
+
+    if (connectionPromise) {
+      return connectionPromise
+    }
+
+    connectionPromise = new Promise((resolve, reject) => {
+      try {
+        const ws = new WebSocket(state.endpoint)
+        state.ws = ws
+
+        ws.onopen = () => resolve()
+        ws.onerror = error => {
+          const connectionError = DBALError.internal(`WebSocket connection failed: ${error}`)
+          rejectPendingRequests(connectionError)
+          resetConnection()
+          reject(connectionError)
+        }
+        ws.onclose = () => {
+          rejectPendingRequests(DBALError.internal('WebSocket connection closed'))
+          resetConnection()
+        }
+        ws.onmessage = event => messageRouter.handle(event.data)
+      } catch (error) {
+        resetConnection()
+        const connectionError =
+          error instanceof DBALError ? error : DBALError.internal('Failed to establish WebSocket connection')
+        reject(connectionError)
+      }
+    })
+
+    return connectionPromise
+  }
+
+  const send = async (message: RPCMessage): Promise<void> => {
+    await ensureConnection()
+
+    if (!state.ws || state.ws.readyState !== WebSocket.OPEN) {
+      throw DBALError.internal('WebSocket connection not open')
+    }
+
+    state.ws.send(JSON.stringify(message))
+  }
+
+  const close = async (): Promise<void> => {
+    rejectPendingRequests(DBALError.internal('WebSocket connection closed'))
+
+    if (state.ws) {
+      state.ws.close()
+    }
+
+    resetConnection()
+  }
+
+  return {
+    ensureConnection,
+    send,
+    close,
+  }
+}

dbal/development/src/bridges/websocket-bridge/connection.ts

@@ -1,28 +0,0 @@
-import { DBALError } from '../../core/foundation/errors'
-import { handleMessage } from './message-handler'
-import type { BridgeState } from './state'
-
-export const connect = async (state: BridgeState): Promise<void> => {
-  if (state.ws?.readyState === WebSocket.OPEN) {
-    return
-  }
-
-  return new Promise((resolve, reject) => {
-    state.ws = new WebSocket(state.endpoint)
-
-    state.ws.onopen = () => resolve()
-    state.ws.onerror = error => reject(DBALError.internal(`WebSocket connection failed: ${error}`))
-    state.ws.onmessage = event => handleMessage(state, event.data)
-    state.ws.onclose = () => {
-      state.ws = null
-    }
-  })
-}
-
-export const closeConnection = async (state: BridgeState): Promise<void> => {
-  if (state.ws) {
-    state.ws.close()
-    state.ws = null
-  }
-  state.pendingRequests.clear()
-}

dbal/development/src/bridges/websocket-bridge/index.ts

@@ -1,16 +1,20 @@
 import type { DBALAdapter, AdapterCapabilities } from '../../adapters/adapter'
 import type { ListOptions, ListResult } from '../../core/types'
-import { closeConnection } from './connection'
+import { createConnectionManager } from './connection-manager'
+import { createMessageRouter } from './message-router'
 import { createOperations } from './operations'
 import { createBridgeState } from './state'
 
 export class WebSocketBridge implements DBALAdapter {
   private readonly state: ReturnType<typeof createBridgeState>
+  private readonly connectionManager: ReturnType<typeof createConnectionManager>
   private readonly operations: ReturnType<typeof createOperations>
 
   constructor(endpoint: string, auth?: { user: unknown; session: unknown }) {
     this.state = createBridgeState(endpoint, auth)
-    this.operations = createOperations(this.state)
+    const messageRouter = createMessageRouter(this.state)
+    this.connectionManager = createConnectionManager(this.state, messageRouter)
+    this.operations = createOperations(this.state, this.connectionManager)
   }
 
   create(entity: string, data: Record<string, unknown>): Promise<unknown> {
@@ -75,6 +79,6 @@ export class WebSocketBridge implements DBALAdapter {
   }
 
   async close(): Promise<void> {
-    await closeConnection(this.state)
+    await this.connectionManager.close()
   }
 }

dbal/development/src/bridges/websocket-bridge/message-handler.ts

@@ -1,25 +0,0 @@
-import type { RPCResponse } from '../utils/rpc-types'
-import type { BridgeState } from './state'
-import { DBALError } from '../../core/foundation/errors'
-
-export const handleMessage = (state: BridgeState, data: string): void => {
-  try {
-    const response: RPCResponse = JSON.parse(data)
-    const pending = state.pendingRequests.get(response.id)
-
-    if (!pending) {
-      return
-    }
-
-    state.pendingRequests.delete(response.id)
-
-    if (response.error) {
-      const error = new DBALError(response.error.message, response.error.code, response.error.details)
-      pending.reject(error)
-    } else {
-      pending.resolve(response.result)
-    }
-  } catch (error) {
-    console.error('Failed to parse WebSocket message:', error)
-  }
-}

dbal/development/src/bridges/websocket-bridge/message-router.ts

@@ -0,0 +1,68 @@
+import { DBALError } from '../../core/foundation/errors'
+import type { RPCResponse } from '../utils/rpc-types'
+import type { BridgeState } from './state'
+
+export interface MessageRouter {
+  handle: (rawMessage: unknown) => void
+}
+
+const isRecord = (value: unknown): value is Record<string, unknown> =>
+  typeof value === 'object' && value !== null && !Array.isArray(value)
+
+const isRPCError = (value: unknown): value is NonNullable<RPCResponse['error']> =>
+  isRecord(value) &&
+  typeof value.code === 'number' &&
+  typeof value.message === 'string' &&
+  (value.details === undefined || isRecord(value.details))
+
+const isRPCResponse = (value: unknown): value is RPCResponse => {
+  if (!isRecord(value)) {
+    return false
+  }
+
+  const hasId = typeof value.id === 'string'
+  const hasResult = Object.prototype.hasOwnProperty.call(value, 'result')
+  const hasError = isRPCError(value.error) || value.error === undefined
+
+  return hasId && (hasResult || isRPCError(value.error)) && hasError
+}
+
+const parseResponse = (rawMessage: string): RPCResponse => {
+  const parsed = JSON.parse(rawMessage) as unknown
+
+  if (!isRPCResponse(parsed)) {
+    throw new Error('Invalid RPC response shape')
+  }
+
+  return parsed
+}
+
+export const createMessageRouter = (state: BridgeState): MessageRouter => ({
+  handle: (rawMessage: unknown) => {
+    if (typeof rawMessage !== 'string') {
+      console.warn('Ignoring non-string WebSocket message')
+      return
+    }
+
+    try {
+      const response = parseResponse(rawMessage)
+      const pending = state.pendingRequests.get(response.id)
+
+      if (!pending) {
+        console.warn(`No pending request for response ${response.id}`)
+        return
+      }
+
+      state.pendingRequests.delete(response.id)
+
+      if (response.error) {
+        const error = new DBALError(response.error.message, response.error.code, response.error.details)
+        pending.reject(error)
+      } else {
+        pending.resolve(response.result)
+      }
+    } catch (error) {
+      console.error('Failed to process WebSocket message', error)
+    }
+  },
+})

dbal/development/src/bridges/websocket-bridge/operations.ts

@@ -1,31 +1,36 @@
 import type { AdapterCapabilities } from '../../adapters/adapter'
 import type { ListOptions, ListResult } from '../../core/types'
+import type { ConnectionManager } from './connection-manager'
 import type { BridgeState } from './state'
 import { rpcCall } from './rpc'
 
-export const createOperations = (state: BridgeState) => ({
-  create: (entity: string, data: Record<string, unknown>) => rpcCall(state, 'create', entity, data),
-  read: (entity: string, id: string) => rpcCall(state, 'read', entity, id),
-  update: (entity: string, id: string, data: Record<string, unknown>) => rpcCall(state, 'update', entity, id, data),
-  delete: (entity: string, id: string) => rpcCall(state, 'delete', entity, id) as Promise<boolean>,
-  list: (entity: string, options?: ListOptions) => rpcCall(state, 'list', entity, options) as Promise<ListResult<unknown>>,
-  findFirst: (entity: string, filter?: Record<string, unknown>) => rpcCall(state, 'findFirst', entity, filter),
-  findByField: (entity: string, field: string, value: unknown) => rpcCall(state, 'findByField', entity, field, value),
+export const createOperations = (state: BridgeState, connectionManager: ConnectionManager) => ({
+  create: (entity: string, data: Record<string, unknown>) => rpcCall(state, connectionManager, 'create', entity, data),
+  read: (entity: string, id: string) => rpcCall(state, connectionManager, 'read', entity, id),
+  update: (entity: string, id: string, data: Record<string, unknown>) =>
+    rpcCall(state, connectionManager, 'update', entity, id, data),
+  delete: (entity: string, id: string) => rpcCall(state, connectionManager, 'delete', entity, id) as Promise<boolean>,
+  list: (entity: string, options?: ListOptions) =>
+    rpcCall(state, connectionManager, 'list', entity, options) as Promise<ListResult<unknown>>,
+  findFirst: (entity: string, filter?: Record<string, unknown>) =>
+    rpcCall(state, connectionManager, 'findFirst', entity, filter),
+  findByField: (entity: string, field: string, value: unknown) =>
+    rpcCall(state, connectionManager, 'findByField', entity, field, value),
   upsert: (
     entity: string,
     filter: Record<string, unknown>,
     createData: Record<string, unknown>,
     updateData: Record<string, unknown>,
-  ) => rpcCall(state, 'upsert', entity, filter, createData, updateData),
+  ) => rpcCall(state, connectionManager, 'upsert', entity, filter, createData, updateData),
   updateByField: (entity: string, field: string, value: unknown, data: Record<string, unknown>) =>
-    rpcCall(state, 'updateByField', entity, field, value, data),
+    rpcCall(state, connectionManager, 'updateByField', entity, field, value, data),
   deleteByField: (entity: string, field: string, value: unknown) =>
-    rpcCall(state, 'deleteByField', entity, field, value) as Promise<boolean>,
+    rpcCall(state, connectionManager, 'deleteByField', entity, field, value) as Promise<boolean>,
   deleteMany: (entity: string, filter?: Record<string, unknown>) =>
-    rpcCall(state, 'deleteMany', entity, filter) as Promise<number>,
+    rpcCall(state, connectionManager, 'deleteMany', entity, filter) as Promise<number>,
   createMany: (entity: string, data: Record<string, unknown>[]) =>
-    rpcCall(state, 'createMany', entity, data) as Promise<number>,
+    rpcCall(state, connectionManager, 'createMany', entity, data) as Promise<number>,
   updateMany: (entity: string, filter: Record<string, unknown>, data: Record<string, unknown>) =>
-    rpcCall(state, 'updateMany', entity, filter, data) as Promise<number>,
-  getCapabilities: () => rpcCall(state, 'getCapabilities') as Promise<AdapterCapabilities>,
+    rpcCall(state, connectionManager, 'updateMany', entity, filter, data) as Promise<number>,
+  getCapabilities: () => rpcCall(state, connectionManager, 'getCapabilities') as Promise<AdapterCapabilities>,
 })

dbal/development/src/bridges/websocket-bridge/rpc.ts

@@ -1,25 +1,28 @@
 import { DBALError } from '../../core/foundation/errors'
 import { generateRequestId } from '../utils/generate-request-id'
 import type { RPCMessage } from '../utils/rpc-types'
-import { connect } from './connection'
+import type { ConnectionManager } from './connection-manager'
 import type { BridgeState } from './state'
 
-export const rpcCall = async (state: BridgeState, method: string, ...params: unknown[]): Promise<unknown> => {
-  await connect(state)
-
+export const rpcCall = async (
+  state: BridgeState,
+  connectionManager: ConnectionManager,
+  method: string,
+  ...params: unknown[]
+): Promise<unknown> => {
   const id = generateRequestId()
   const message: RPCMessage = { id, method, params }
 
   return new Promise((resolve, reject) => {
     state.pendingRequests.set(id, { resolve, reject })
 
-    if (state.ws?.readyState === WebSocket.OPEN) {
-      state.ws.send(JSON.stringify(message))
-    } else {
-      state.pendingRequests.delete(id)
-      reject(DBALError.internal('WebSocket connection not open'))
-      return
-    }
+    connectionManager
+      .send(message)
+      .catch(error => {
+        state.pendingRequests.delete(id)
+        reject(error)
+        return
+      })
 
     setTimeout(() => {
       if (state.pendingRequests.has(id)) {

dbal/development/src/core/entities/operations/core/user-operations.ts

@@ -1,2 +1,11 @@
 export { createUserOperations } from './user'
 export type { UserOperations } from './user'
+
+export { createUser } from './user/create'
+export { deleteUser } from './user/delete'
+export { updateUser } from './user/update'
+export {
+  assertValidUserCreate,
+  assertValidUserId,
+  assertValidUserUpdate,
+} from './user/validation'

dbal/development/src/core/entities/operations/core/user/create.ts

@@ -0,0 +1,20 @@
+import type { DBALAdapter } from '../../../../adapters/adapter'
+import { DBALError } from '../../../../foundation/errors'
+import type { User } from '../../../../foundation/types'
+import { assertValidUserCreate } from './validation'
+
+export const createUser = async (
+  adapter: DBALAdapter,
+  data: Omit<User, 'id' | 'createdAt' | 'updatedAt'>,
+): Promise<User> => {
+  assertValidUserCreate(data)
+
+  try {
+    return adapter.create('User', data) as Promise<User>
+  } catch (error) {
+    if (error instanceof DBALError && error.code === 409) {
+      throw DBALError.conflict('User with username or email already exists')
+    }
+    throw error
+  }
+}

dbal/development/src/core/entities/operations/core/user/delete.ts

@@ -0,0 +1,13 @@
+import type { DBALAdapter } from '../../../../adapters/adapter'
+import { DBALError } from '../../../../foundation/errors'
+import { assertValidUserId } from './validation'
+
+export const deleteUser = async (adapter: DBALAdapter, id: string): Promise<boolean> => {
+  assertValidUserId(id)
+
+  const result = await adapter.delete('User', id)
+  if (!result) {
+    throw DBALError.notFound(`User not found: ${id}`)
+  }
+  return result
+}

dbal/development/src/core/entities/operations/core/user/index.ts

@@ -1,6 +1,8 @@
 import type { DBALAdapter } from '../../../../adapters/adapter'
 import type { User, ListOptions, ListResult } from '../../../../foundation/types'
-import { createUser, deleteUser, updateUser } from './mutations'
+import { createUser } from './create'
+import { deleteUser } from './delete'
+import { updateUser } from './update'
 import { createManyUsers, deleteManyUsers, updateManyUsers } from './batch'
 import { listUsers, readUser } from './reads'
 

dbal/development/src/core/entities/operations/core/user/mutations.ts

@@ -1,57 +0,0 @@
-import type { DBALAdapter } from '../../../../adapters/adapter'
-import type { User } from '../../../../foundation/types'
-import { DBALError } from '../../../../foundation/errors'
-import { validateUserCreate, validateUserUpdate, validateId } from '../../../../foundation/validation'
-
-export const createUser = async (
-  adapter: DBALAdapter,
-  data: Omit<User, 'id' | 'createdAt' | 'updatedAt'>,
-): Promise<User> => {
-  const validationErrors = validateUserCreate(data)
-  if (validationErrors.length > 0) {
-    throw DBALError.validationError('Invalid user data', validationErrors.map(error => ({ field: 'user', error })))
-  }
-
-  try {
-    return adapter.create('User', data) as Promise<User>
-  } catch (error) {
-    if (error instanceof DBALError && error.code === 409) {
-      throw DBALError.conflict('User with username or email already exists')
-    }
-    throw error
-  }
-}
-
-export const updateUser = async (adapter: DBALAdapter, id: string, data: Partial<User>): Promise<User> => {
-  const idErrors = validateId(id)
-  if (idErrors.length > 0) {
-    throw DBALError.validationError('Invalid user ID', idErrors.map(error => ({ field: 'id', error })))
-  }
-
-  const validationErrors = validateUserUpdate(data)
-  if (validationErrors.length > 0) {
-    throw DBALError.validationError('Invalid user update data', validationErrors.map(error => ({ field: 'user', error })))
-  }
-
-  try {
-    return adapter.update('User', id, data) as Promise<User>
-  } catch (error) {
-    if (error instanceof DBALError && error.code === 409) {
-      throw DBALError.conflict('Username or email already exists')
-    }
-    throw error
-  }
-}
-
-export const deleteUser = async (adapter: DBALAdapter, id: string): Promise<boolean> => {
-  const validationErrors = validateId(id)
-  if (validationErrors.length > 0) {
-    throw DBALError.validationError('Invalid user ID', validationErrors.map(error => ({ field: 'id', error })))
-  }
-
-  const result = await adapter.delete('User', id)
-  if (!result) {
-    throw DBALError.notFound(`User not found: ${id}`)
-  }
-  return result
-}

dbal/development/src/core/entities/operations/core/user/update.ts

@@ -0,0 +1,22 @@
+import type { DBALAdapter } from '../../../../adapters/adapter'
+import { DBALError } from '../../../../foundation/errors'
+import type { User } from '../../../../foundation/types'
+import { assertValidUserId, assertValidUserUpdate } from './validation'
+
+export const updateUser = async (
+  adapter: DBALAdapter,
+  id: string,
+  data: Partial<User>,
+): Promise<User> => {
+  assertValidUserId(id)
+  assertValidUserUpdate(data)
+
+  try {
+    return adapter.update('User', id, data) as Promise<User>
+  } catch (error) {
+    if (error instanceof DBALError && error.code === 409) {
+      throw DBALError.conflict('Username or email already exists')
+    }
+    throw error
+  }
+}

dbal/development/src/core/entities/operations/core/user/validation.ts

@@ -0,0 +1,24 @@
+import { DBALError } from '../../../../foundation/errors'
+import type { User } from '../../../../foundation/types'
+import { validateId, validateUserCreate, validateUserUpdate } from '../../../../foundation/validation'
+
+export const assertValidUserId = (id: string): void => {
+  const validationErrors = validateId(id)
+  if (validationErrors.length > 0) {
+    throw DBALError.validationError('Invalid user ID', validationErrors.map(error => ({ field: 'id', error })))
+  }
+}
+
+export const assertValidUserCreate = (data: Omit<User, 'id' | 'createdAt' | 'updatedAt'>): void => {
+  const validationErrors = validateUserCreate(data)
+  if (validationErrors.length > 0) {
+    throw DBALError.validationError('Invalid user data', validationErrors.map(error => ({ field: 'user', error })))
+  }
+}
+
+export const assertValidUserUpdate = (data: Partial<User>): void => {
+  const validationErrors = validateUserUpdate(data)
+  if (validationErrors.length > 0) {
+    throw DBALError.validationError('Invalid user update data', validationErrors.map(error => ({ field: 'user', error })))
+  }
+}

dbal/development/src/core/entities/operations/system/package-operations.ts

@@ -1,2 +1 @@
-export { createPackageOperations } from './package'
-export type { PackageOperations } from './package'
+export * from './package'

dbal/development/src/core/entities/operations/system/package/index.ts

@@ -2,9 +2,15 @@ import type { DBALAdapter } from '../../../../adapters/adapter'
 import type { Package, ListOptions, ListResult } from '../../../../foundation/types'
 import { createManyPackages, deleteManyPackages, updateManyPackages } from './batch'
 import { createPackage, deletePackage, updatePackage } from './mutations'
+import { publishPackage } from './publish'
 import { listPackages, readPackage } from './reads'
+import { unpublishPackage } from './unpublish'
+import { validatePackage } from './validate'
 
 export interface PackageOperations {
+  validate: (data: Partial<Package>) => string[]
+  publish: (data: Omit<Package, 'id' | 'createdAt' | 'updatedAt'>) => Promise<Package>
+  unpublish: (id: string) => Promise<boolean>
   create: (data: Omit<Package, 'id' | 'createdAt' | 'updatedAt'>) => Promise<Package>
   read: (id: string) => Promise<Package | null>
   update: (id: string, data: Partial<Package>) => Promise<Package>
@@ -16,6 +22,9 @@ export interface PackageOperations {
 }
 
 export const createPackageOperations = (adapter: DBALAdapter): PackageOperations => ({
+  validate: data => validatePackage(data),
+  publish: data => publishPackage(adapter, data),
+  unpublish: id => unpublishPackage(adapter, id),
   create: data => createPackage(adapter, data),
   read: id => readPackage(adapter, id),
   update: (id, data) => updatePackage(adapter, id, data),
@@ -25,3 +34,7 @@ export const createPackageOperations = (adapter: DBALAdapter): PackageOperations
   updateMany: (filter, data) => updateManyPackages(adapter, filter, data),
   deleteMany: filter => deleteManyPackages(adapter, filter),
 })
+
+export { publishPackage } from './publish'
+export { unpublishPackage } from './unpublish'
+export { validatePackage } from './validate'

dbal/development/src/core/entities/operations/system/package/publish.ts

@@ -0,0 +1,10 @@
+import type { DBALAdapter } from '../../../../adapters/adapter'
+import type { Package } from '../../../../foundation/types'
+import { createPackage } from './mutations'
+
+export const publishPackage = (
+  adapter: DBALAdapter,
+  data: Omit<Package, 'id' | 'createdAt' | 'updatedAt'>,
+): Promise<Package> => {
+  return createPackage(adapter, data)
+}

dbal/development/src/core/entities/operations/system/package/unpublish.ts

@@ -0,0 +1,6 @@
+import type { DBALAdapter } from '../../../../adapters/adapter'
+import { deletePackage } from './mutations'
+
+export const unpublishPackage = (adapter: DBALAdapter, id: string): Promise<boolean> => {
+  return deletePackage(adapter, id)
+}

dbal/development/src/core/entities/operations/system/package/validate.ts

@@ -0,0 +1,6 @@
+import type { Package } from '../../../../foundation/types'
+import { validatePackageCreate } from '../../../../foundation/validation'
+
+export const validatePackage = (data: Partial<Package>): string[] => {
+  return validatePackageCreate(data)
+}

dbal/development/src/core/foundation/types/entities.ts

@@ -0,0 +1,19 @@
+export type EntityId = string
+
+export interface BaseEntity {
+  id: EntityId
+  createdAt: Date
+  updatedAt: Date
+}
+
+export interface SoftDeletableEntity extends BaseEntity {
+  deletedAt?: Date
+}
+
+export interface TenantScopedEntity extends BaseEntity {
+  tenantId: string
+}
+
+export interface EntityMetadata {
+  metadata?: Record<string, unknown>
+}

dbal/development/src/core/foundation/types/events.ts

@@ -0,0 +1,13 @@
+import type { OperationContext } from './operations'
+
+export interface DomainEvent<TPayload = Record<string, unknown>> {
+  id: string
+  name: string
+  occurredAt: Date
+  payload: TPayload
+  context?: OperationContext
+}
+
+export interface EventHandler<TPayload = Record<string, unknown>> {
+  (event: DomainEvent<TPayload>): void | Promise<void>
+}

dbal/development/src/core/foundation/types/index.ts

@@ -4,3 +4,6 @@ export * from './content'
 export * from './automation'
 export * from './packages'
 export * from './shared'
+export * from './entities'
+export * from './operations'
+export * from './events'

dbal/development/src/core/foundation/types/operations.ts

@@ -0,0 +1,19 @@
+export interface OperationContext {
+  tenantId?: string
+  userId?: string
+  correlationId?: string
+  traceId?: string
+  metadata?: Record<string, unknown>
+}
+
+export interface OperationOptions {
+  timeoutMs?: number
+  retryCount?: number
+  dryRun?: boolean
+}
+
+export interface OperationAuditTrail {
+  performedAt: Date
+  performedBy?: string
+  context?: OperationContext
+}

dbal/shared/tools/cpp-build-assistant.ts

@@ -1,12 +1,15 @@
 import path from 'path'
-import { CppBuildAssistant, runCppBuildAssistant } from './cpp-build-assistant/index'
+import { runCppBuildAssistant } from './cpp-build-assistant/runner'
 
-export { CppBuildAssistant, runCppBuildAssistant }
+export { CppBuildAssistant, createAssistant } from './cpp-build-assistant'
+export { createCppBuildAssistantConfig } from './cpp-build-assistant/config'
+export { runCppBuildAssistant } from './cpp-build-assistant/runner'
 
 if (require.main === module) {
   const args = process.argv.slice(2)
+  const projectRoot = path.join(__dirname, '..')
 
-  runCppBuildAssistant(args, path.join(__dirname, '..'))
+  runCppBuildAssistant(args, projectRoot)
     .then(success => {
       process.exit(success ? 0 : 1)
     })

dbal/shared/tools/cpp-build-assistant/cli.ts

@@ -0,0 +1,125 @@
+import os from 'os'
+import { BuildType } from './config'
+import { COLORS, log } from './logging'
+import { CppBuildAssistant } from './index'
+
+export type CliCommand =
+  | 'check'
+  | 'init'
+  | 'install'
+  | 'configure'
+  | 'build'
+  | 'test'
+  | 'clean'
+  | 'rebuild'
+  | 'full'
+  | 'help'
+
+export interface ParsedCliArgs {
+  command: CliCommand
+  buildType: BuildType
+  jobs: number
+  target?: string
+  options: string[]
+}
+
+const parseBuildType = (options: string[]): BuildType => (options.includes('--debug') ? 'Debug' : 'Release')
+
+const parseJobs = (options: string[]): number => {
+  const jobsArg = options.find(option => option.startsWith('--jobs='))
+  const parsedJobs = jobsArg ? parseInt(jobsArg.split('=')[1]) : Number.NaN
+
+  return Number.isNaN(parsedJobs) ? os.cpus().length : parsedJobs
+}
+
+const parseTarget = (command: CliCommand, options: string[]): string | undefined => {
+  if (command !== 'build') return undefined
+
+  return options.find(option => !option.startsWith('--')) || 'all'
+}
+
+export const parseCliArgs = (args: string[]): ParsedCliArgs => {
+  const command = (args[0] as CliCommand | undefined) || 'help'
+  const options = args.slice(1)
+
+  return {
+    command,
+    buildType: parseBuildType(options),
+    jobs: parseJobs(options),
+    target: parseTarget(command, options),
+    options,
+  }
+}
+
+export const showHelp = (): void => {
+  console.log(`
+${COLORS.bright}C++ Build Assistant${COLORS.reset} - Conan + Ninja Build Helper
+
+${COLORS.cyan}USAGE:${COLORS.reset}
+  npm run cpp:build [command] [options]
+
+${COLORS.cyan}COMMANDS:${COLORS.reset}
+  ${COLORS.green}check${COLORS.reset}              Check if all dependencies are installed
+  ${COLORS.green}init${COLORS.reset}               Initialize project (create conanfile if missing)
+  ${COLORS.green}install${COLORS.reset}            Install Conan dependencies
+  ${COLORS.green}configure${COLORS.reset}          Configure CMake with Ninja generator
+  ${COLORS.green}build${COLORS.reset} [target]     Build the project (default: all)
+  ${COLORS.green}test${COLORS.reset}               Run tests with CTest
+  ${COLORS.green}clean${COLORS.reset}              Remove build artifacts
+  ${COLORS.green}rebuild${COLORS.reset}            Clean and rebuild
+  ${COLORS.green}full${COLORS.reset}               Full workflow: check → install → configure → build
+  ${COLORS.green}help${COLORS.reset}               Show this help message
+
+${COLORS.cyan}OPTIONS:${COLORS.reset}
+  --debug              Use Debug build type
+  --release            Use Release build type (default)
+  --jobs=N             Number of parallel build jobs (default: CPU count)
+
+${COLORS.cyan}EXAMPLES:${COLORS.reset}
+  npm run cpp:build check
+  npm run cpp:build full
+  npm run cpp:build build dbal_daemon
+  npm run cpp:build build -- --debug
+  npm run cpp:build test
+`)
+}
+
+export const runCli = async (args: string[], assistant: CppBuildAssistant): Promise<boolean> => {
+  const parsed = parseCliArgs(args)
+
+  switch (parsed.command) {
+    case 'check':
+      return assistant.checkDependencies()
+    case 'init':
+      return assistant.createConanfile()
+    case 'install':
+      if (!assistant.checkDependencies()) return false
+      return assistant.installConanDeps()
+    case 'configure':
+      if (!assistant.checkDependencies()) return false
+      return assistant.configureCMake(parsed.buildType)
+    case 'build':
+      if (!assistant.checkDependencies()) return false
+      return assistant.build(parsed.target, parsed.jobs)
+    case 'test':
+      return assistant.test()
+    case 'clean':
+      return assistant.clean()
+    case 'rebuild':
+      assistant.clean()
+      if (!assistant.checkDependencies()) return false
+      if (!assistant.configureCMake(parsed.buildType)) return false
+      return assistant.build('all', parsed.jobs)
+    case 'full':
+      log.section('Full Build Workflow')
+      if (!assistant.checkDependencies()) return false
+      if (!assistant.createConanfile()) return false
+      if (!assistant.installConanDeps()) return false
+      if (!assistant.configureCMake(parsed.buildType)) return false
+      return assistant.build('all', parsed.jobs)
+    case 'help':
+    default:
+      showHelp()
+      return true
+  }
+}

dbal/shared/tools/cpp-build-assistant/config.ts

@@ -0,0 +1,20 @@
+import path from 'path'
+
+export type BuildType = 'Debug' | 'Release'
+
+export interface CppBuildAssistantConfig {
+  projectRoot: string
+  cppDir: string
+  buildDir: string
+}
+
+export const createCppBuildAssistantConfig = (projectRoot?: string): CppBuildAssistantConfig => {
+  const resolvedProjectRoot = projectRoot || path.join(__dirname, '..')
+  const cppDir = path.join(resolvedProjectRoot, 'cpp')
+
+  return {
+    projectRoot: resolvedProjectRoot,
+    cppDir,
+    buildDir: path.join(cppDir, 'build'),
+  }
+}

dbal/shared/tools/cpp-build-assistant/index.ts

@@ -1,18 +1,27 @@
 import os from 'os'
 import path from 'path'
+import { CppBuildAssistantConfig, BuildType, createCppBuildAssistantConfig } from './config'
 import { COLORS, log } from './logging'
 import { checkDependencies } from './dependencies'
 import { cleanBuild, configureCMake, ensureConanFile, execCommand, installConanDeps, buildTarget, runTests } from './workflow'
 
 export class CppBuildAssistant {
-  private projectRoot: string
-  private cppDir: string
-  private buildDir: string
+  private config: CppBuildAssistantConfig
 
-  constructor(projectRoot?: string) {
-    this.projectRoot = projectRoot || path.join(__dirname, '..')
-    this.cppDir = path.join(this.projectRoot, 'cpp')
-    this.buildDir = path.join(this.cppDir, 'build')
+  constructor(config?: CppBuildAssistantConfig) {
+    this.config = config || createCppBuildAssistantConfig()
+  }
+
+  get projectRoot(): string {
+    return this.config.projectRoot
+  }
+
+  get cppDir(): string {
+    return this.config.cppDir
+  }
+
+  get buildDir(): string {
+    return this.config.buildDir
   }
 
   checkDependencies(): boolean {
@@ -27,7 +36,7 @@ export class CppBuildAssistant {
     return installConanDeps(this.cppDir, execCommand)
   }
 
-  configureCMake(buildType: 'Debug' | 'Release' = 'Release'): boolean {
+  configureCMake(buildType: BuildType = 'Release'): boolean {
     return configureCMake(this.cppDir, buildType, execCommand)
   }
 
@@ -42,88 +51,11 @@ export class CppBuildAssistant {
   clean(): boolean {
     return cleanBuild(this.buildDir)
   }
-
-  async run(args: string[]): Promise<boolean> {
-    const command = args[0] || 'help'
-    const options = args.slice(1)
-
-    const buildType = options.includes('--debug') ? 'Debug' : 'Release'
-    const jobsArg = options.find(option => option.startsWith('--jobs='))
-    const jobs = jobsArg ? parseInt(jobsArg.split('=')[1]) : os.cpus().length
-
-    switch (command) {
-      case 'check':
-        return this.checkDependencies()
-      case 'init':
-        return this.createConanfile()
-      case 'install':
-        if (!this.checkDependencies()) return false
-        return this.installConanDeps()
-      case 'configure':
-        if (!this.checkDependencies()) return false
-        return this.configureCMake(buildType as 'Debug' | 'Release')
-      case 'build':
-        if (!this.checkDependencies()) return false
-        const target = options.find(option => !option.startsWith('--')) || 'all'
-        return this.build(target, jobs)
-      case 'test':
-        return this.test()
-      case 'clean':
-        return this.clean()
-      case 'rebuild':
-        this.clean()
-        if (!this.checkDependencies()) return false
-        if (!this.configureCMake(buildType as 'Debug' | 'Release')) return false
-        return this.build('all', jobs)
-      case 'full':
-        log.section('Full Build Workflow')
-        if (!this.checkDependencies()) return false
-        if (!this.createConanfile()) return false
-        if (!this.installConanDeps()) return false
-        if (!this.configureCMake(buildType as 'Debug' | 'Release')) return false
-        return this.build('all', jobs)
-      case 'help':
-      default:
-        this.showHelp()
-        return true
-    }
-  }
-
-  private showHelp(): void {
-    console.log(`
-${COLORS.bright}C++ Build Assistant${COLORS.reset} - Conan + Ninja Build Helper
-
-${COLORS.cyan}USAGE:${COLORS.reset}
-  npm run cpp:build [command] [options]
-
-${COLORS.cyan}COMMANDS:${COLORS.reset}
-  ${COLORS.green}check${COLORS.reset}              Check if all dependencies are installed
-  ${COLORS.green}init${COLORS.reset}               Initialize project (create conanfile if missing)
-  ${COLORS.green}install${COLORS.reset}            Install Conan dependencies
-  ${COLORS.green}configure${COLORS.reset}          Configure CMake with Ninja generator
-  ${COLORS.green}build${COLORS.reset} [target]     Build the project (default: all)
-  ${COLORS.green}test${COLORS.reset}               Run tests with CTest
-  ${COLORS.green}clean${COLORS.reset}              Remove build artifacts
-  ${COLORS.green}rebuild${COLORS.reset}            Clean and rebuild
-  ${COLORS.green}full${COLORS.reset}               Full workflow: check → install → configure → build
-  ${COLORS.green}help${COLORS.reset}               Show this help message
-
-${COLORS.cyan}OPTIONS:${COLORS.reset}
-  --debug              Use Debug build type
-  --release            Use Release build type (default)
-  --jobs=N             Number of parallel build jobs (default: CPU count)
-
-${COLORS.cyan}EXAMPLES:${COLORS.reset}
-  npm run cpp:build check
-  npm run cpp:build full
-  npm run cpp:build build dbal_daemon
-  npm run cpp:build build -- --debug
-  npm run cpp:build test
-`)
-  }
 }
 
-export const runCppBuildAssistant = async (args: string[], projectRoot?: string) => {
-  const assistant = new CppBuildAssistant(projectRoot || path.join(__dirname, '..'))
-  return assistant.run(args)
+export const createAssistant = (projectRoot?: string): CppBuildAssistant => {
+  const config = createCppBuildAssistantConfig(projectRoot || path.join(__dirname, '..'))
+  return new CppBuildAssistant(config)
 }
+
+export { BuildType, CppBuildAssistantConfig, COLORS, log }

dbal/shared/tools/cpp-build-assistant/runner.ts

@@ -0,0 +1,10 @@
+import { CppBuildAssistant } from './index'
+import { createCppBuildAssistantConfig } from './config'
+import { runCli } from './cli'
+
+export const runCppBuildAssistant = async (args: string[], projectRoot?: string): Promise<boolean> => {
+  const config = createCppBuildAssistantConfig(projectRoot)
+  const assistant = new CppBuildAssistant(config)
+
+  return runCli(args, assistant)
+}

frontends/nextjs/src/app/codegen/CodegenStudioClient.tsx

@@ -1,6 +1,5 @@
 'use client'
 
-import type { CodegenManifest } from '@/lib/codegen/codegen-types'
 import { useMemo, useState, type ChangeEvent } from 'react'
 
 import {
@@ -16,6 +15,10 @@ import {
   Typography,
 } from '@mui/material'
 
+import Header from './components/Header'
+import Sidebar from './components/Sidebar'
+import { useCodegenData, type CodegenRequest } from './hooks/useCodegenData'
+
 const runtimeOptions = [
   { value: 'web', label: 'Next.js web' },
   { value: 'cli', label: 'Command line' },
@@ -24,7 +27,7 @@ const runtimeOptions = [
   { value: 'server', label: 'Server service' },
 ]
 
-const initialFormState = {
+const initialFormState: CodegenRequest = {
   projectName: 'nebula-launch',
   packageId: 'codegen_studio',
   runtime: 'web',
@@ -32,51 +35,11 @@ const initialFormState = {
   brief: 'Modern web interface with CLI companions',
 }
 
-type FormState = (typeof initialFormState)
-
-type FetchStatus = 'idle' | 'loading' | 'success'
-
-const createFilename = (header: string | null, fallback: string) => {
-  const match = header?.match(/filename="?([^"]+)"?/) ?? null
-  return match ? match[1] : fallback
-}
-
-const downloadBlob = (blob: Blob, filename: string) => {
-  const url = URL.createObjectURL(blob)
-  const anchor = document.createElement('a')
-  anchor.href = url
-  anchor.download = filename
-  document.body.appendChild(anchor)
-  anchor.click()
-  anchor.remove()
-  URL.revokeObjectURL(url)
-}
-
-const fetchZip = async (values: FormState) => {
-  const response = await fetch('/api/codegen/studio', {
-    method: 'POST',
-    headers: { 'Content-Type': 'application/json' },
-    body: JSON.stringify(values),
-  })
-  if (!response.ok) {
-    throw new Error('Codegen Studio service returned an error')
-  }
-  const blob = await response.blob()
-  const filename = createFilename(response.headers.get('content-disposition'), `${values.projectName}.zip`)
-  downloadBlob(blob, filename)
-  const manifestHeader = response.headers.get('x-codegen-manifest')
-  const manifest = manifestHeader
-    ? (JSON.parse(decodeURIComponent(manifestHeader)) as CodegenManifest)
-    : null
-  return { filename, manifest }
-}
+type FormState = typeof initialFormState
 
 export default function CodegenStudioClient() {
   const [form, setForm] = useState<FormState>(initialFormState)
-  const [status, setStatus] = useState<FetchStatus>('idle')
-  const [message, setMessage] = useState<string | null>(null)
-  const [error, setError] = useState<string | null>(null)
-  const [manifest, setManifest] = useState<CodegenManifest | null>(null)
+  const { status, message, error, manifest, generate } = useCodegenData()
 
   const runtimeDescription = useMemo(() => {
     switch (form.runtime) {
@@ -112,125 +75,62 @@ export default function CodegenStudioClient() {
     setForm((prev) => ({ ...prev, [key]: event.target.value }))
   }
 
-  const handleSubmit = async () => {
-    setStatus('loading')
-    setError(null)
-    setMessage(null)
-    try {
-      const { filename, manifest } = await fetchZip(form)
-      setMessage(`Zip ${filename} created successfully.`)
-      setManifest(manifest)
-      setStatus('success')
-    } catch (err) {
-      setError(err instanceof Error ? err.message : 'Unable to generate the zip')
-      setManifest(null)
-      setStatus('idle')
-    }
-  }
+  const handleSubmit = () => generate(form)
 
   return (
-    <Container maxWidth="md" className="py-16">
-      <Paper elevation={8} className="p-8 space-y-6">
-        <Stack spacing={2}>
-          <Typography variant="h3" component="h1">
-            Codegen Studio Export
-          </Typography>
-          <Typography variant="body1" color="text.secondary">
-            Configure a starter bundle for MetaBuilder packages and download it instantly.
-          </Typography>
-        </Stack>
-
-        <Stack spacing={3}>
-          <TextField
-            label="Project name"
-            value={form.projectName}
-            onChange={handleChange('projectName')}
-            fullWidth
+    <Container maxWidth="lg" className="py-16">
+      <Paper elevation={8} className="p-8">
+        <Stack spacing={5}>
+          <Header
+            title="Codegen Studio Export"
+            subtitle="Configure a starter bundle for MetaBuilder packages and download it instantly."
           />
-          <TextField
-            label="Package id"
-            value={form.packageId}
-            onChange={handleChange('packageId')}
-            fullWidth
-          />
-          <TextField
-            select
-            label="Runtime"
-            value={form.runtime}
-            onChange={handleChange('runtime')}
-            fullWidth
-          >
-            {runtimeOptions.map((option) => (
-              <MenuItem key={option.value} value={option.value}>
-                {option.label}
-              </MenuItem>
-            ))}
-          </TextField>
-          <Typography variant="body2" color="text.secondary">
-            {runtimeDescription}
-          </Typography>
-          <TextField
-            label="Tone"
-            value={form.tone}
-            onChange={handleChange('tone')}
-            fullWidth
-          />
-          <TextField
-            label="Creative brief"
-            value={form.brief}
-            onChange={handleChange('brief')}
-            fullWidth
-            multiline
-            minRows={3}
-          />
-          <Box>
-            <Button
-              variant="contained"
-              color="primary"
-              onClick={handleSubmit}
-              disabled={status === 'loading'}
-              startIcon={status === 'loading' ? <CircularProgress size={16} /> : null}
-            >
-              {status === 'loading' ? 'Generating...' : 'Generate ZIP'}
-            </Button>
-          </Box>
-
-          {message && <Alert severity="success">{message}</Alert>}
-          {error && <Alert severity="error">{error}</Alert>}
-          {manifest && (
-            <Paper
-              elevation={1}
-              sx={{ border: '1px dashed', borderColor: 'divider', p: 2, backgroundColor: 'background.default' }}
-            >
-              <Typography variant="subtitle1" gutterBottom>
-                Manifest preview
+          <Stack direction={{ xs: 'column', md: 'row' }} spacing={5} alignItems="flex-start">
+            <Stack spacing={3} flex={1} width="100%">
+              <TextField
+                label="Project name"
+                value={form.projectName}
+                onChange={handleChange('projectName')}
+                fullWidth
+              />
+              <TextField label="Package id" value={form.packageId} onChange={handleChange('packageId')} fullWidth />
+              <TextField select label="Runtime" value={form.runtime} onChange={handleChange('runtime')} fullWidth>
+                {runtimeOptions.map((option) => (
+                  <MenuItem key={option.value} value={option.value}>
+                    {option.label}
+                  </MenuItem>
+                ))}
+              </TextField>
+              <Typography variant="body2" color="text.secondary">
+                {runtimeDescription}
               </Typography>
-              <Stack spacing={0.5}>
-                <Typography variant="body2" color="text.secondary">
-                  Project: {manifest.projectName}
-                </Typography>
-                <Typography variant="body2" color="text.secondary">
-                  Package: {manifest.packageId}
-                </Typography>
-                <Typography variant="body2" color="text.secondary">
-                  Runtime: {manifest.runtime}
-                </Typography>
-                <Typography variant="body2" color="text.secondary">
-                  Tone: {manifest.tone ?? 'adaptive'}
-                </Typography>
-                <Typography variant="body2" color="text.secondary">
-                  Generated at: {new Date(manifest.generatedAt).toLocaleString()}
-                </Typography>
-              </Stack>
-            </Paper>
-          )}
-          <Stack spacing={0.5}>
-            <Typography variant="subtitle2">Bundle contents</Typography>
-            {previewFiles.map((entry) => (
-              <Typography key={entry} variant="body2" color="text.secondary">
-                • {entry}
-              </Typography>
-            ))}
+              <TextField label="Tone" value={form.tone} onChange={handleChange('tone')} fullWidth />
+              <TextField
+                label="Creative brief"
+                value={form.brief}
+                onChange={handleChange('brief')}
+                fullWidth
+                multiline
+                minRows={3}
+              />
+              <Box>
+                <Button
+                  variant="contained"
+                  color="primary"
+                  onClick={handleSubmit}
+                  disabled={status === 'loading'}
+                  startIcon={status === 'loading' ? <CircularProgress size={16} /> : null}
+                >
+                  {status === 'loading' ? 'Generating...' : 'Generate ZIP'}
+                </Button>
+              </Box>
+
+              {message && <Alert severity="success">{message}</Alert>}
+              {error && <Alert severity="error">{error}</Alert>}
+            </Stack>
+            <Box width={{ xs: '100%', md: 320 }} flexShrink={0}>
+              <Sidebar manifest={manifest} previewFiles={previewFiles} />
+            </Box>
           </Stack>
         </Stack>
       </Paper>

frontends/nextjs/src/app/codegen/components/Header.tsx

@@ -0,0 +1,21 @@
+'use client'
+
+import { Stack, Typography } from '@mui/material'
+
+interface HeaderProps {
+  title: string
+  subtitle: string
+}
+
+export default function Header({ title, subtitle }: HeaderProps) {
+  return (
+    <Stack spacing={2}>
+      <Typography variant="h3" component="h1">
+        {title}
+      </Typography>
+      <Typography variant="body1" color="text.secondary">
+        {subtitle}
+      </Typography>
+    </Stack>
+  )
+}

frontends/nextjs/src/app/codegen/components/Sidebar.tsx

@@ -0,0 +1,51 @@
+'use client'
+
+import type { CodegenManifest } from '@/lib/codegen/codegen-types'
+import { Paper, Stack, Typography } from '@mui/material'
+
+interface SidebarProps {
+  manifest: CodegenManifest | null
+  previewFiles: string[]
+}
+
+export default function Sidebar({ manifest, previewFiles }: SidebarProps) {
+  return (
+    <Stack spacing={3}>
+      {manifest && (
+        <Paper
+          elevation={1}
+          sx={{ border: '1px dashed', borderColor: 'divider', p: 2, backgroundColor: 'background.default' }}
+        >
+          <Typography variant="subtitle1" gutterBottom>
+            Manifest preview
+          </Typography>
+          <Stack spacing={0.5}>
+            <Typography variant="body2" color="text.secondary">
+              Project: {manifest.projectName}
+            </Typography>
+            <Typography variant="body2" color="text.secondary">
+              Package: {manifest.packageId}
+            </Typography>
+            <Typography variant="body2" color="text.secondary">
+              Runtime: {manifest.runtime}
+            </Typography>
+            <Typography variant="body2" color="text.secondary">
+              Tone: {manifest.tone ?? 'adaptive'}
+            </Typography>
+            <Typography variant="body2" color="text.secondary">
+              Generated at: {new Date(manifest.generatedAt).toLocaleString()}
+            </Typography>
+          </Stack>
+        </Paper>
+      )}
+      <Stack spacing={1}>
+        <Typography variant="subtitle2">Bundle contents</Typography>
+        {previewFiles.map((entry) => (
+          <Typography key={entry} variant="body2" color="text.secondary">
+            • {entry}
+          </Typography>
+        ))}
+      </Stack>
+    </Stack>
+  )
+}

frontends/nextjs/src/app/codegen/hooks/useCodegenData.ts

@@ -0,0 +1,74 @@
+'use client'
+
+import type { CodegenManifest } from '@/lib/codegen/codegen-types'
+import { useCallback, useState } from 'react'
+
+export type CodegenRequest = {
+  projectName: string
+  packageId: string
+  runtime: string
+  tone: string
+  brief: string
+}
+
+export type FetchStatus = 'idle' | 'loading' | 'success'
+
+const createFilename = (header: string | null, fallback: string) => {
+  const match = header?.match(/filename="?([^"]+)"?/) ?? null
+  return match ? match[1] : fallback
+}
+
+const downloadBlob = (blob: Blob, filename: string) => {
+  const url = URL.createObjectURL(blob)
+  const anchor = document.createElement('a')
+  anchor.href = url
+  anchor.download = filename
+  document.body.appendChild(anchor)
+  anchor.click()
+  anchor.remove()
+  URL.revokeObjectURL(url)
+}
+
+const fetchZip = async (values: CodegenRequest) => {
+  const response = await fetch('/api/codegen/studio', {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify(values),
+  })
+  if (!response.ok) {
+    throw new Error('Codegen Studio service returned an error')
+  }
+  const blob = await response.blob()
+  const filename = createFilename(response.headers.get('content-disposition'), `${values.projectName}.zip`)
+  downloadBlob(blob, filename)
+  const manifestHeader = response.headers.get('x-codegen-manifest')
+  const manifest = manifestHeader
+    ? (JSON.parse(decodeURIComponent(manifestHeader)) as CodegenManifest)
+    : null
+  return { filename, manifest }
+}
+
+export function useCodegenData() {
+  const [status, setStatus] = useState<FetchStatus>('idle')
+  const [message, setMessage] = useState<string | null>(null)
+  const [error, setError] = useState<string | null>(null)
+  const [manifest, setManifest] = useState<CodegenManifest | null>(null)
+
+  const generate = useCallback(async (values: CodegenRequest) => {
+    setStatus('loading')
+    setError(null)
+    setMessage(null)
+    try {
+      const { filename, manifest: manifestResult } = await fetchZip(values)
+      setMessage(`Zip ${filename} created successfully.`)
+      setManifest(manifestResult)
+      setStatus('success')
+    } catch (err) {
+      setError(err instanceof Error ? err.message : 'Unable to generate the zip')
+      setManifest(null)
+      setStatus('idle')
+    }
+  }, [])
+
+  return { status, message, error, manifest, generate }
+}

frontends/nextjs/src/components/editors/JsonEditor.tsx

@@ -1,12 +1,13 @@
-import { useState, useEffect } from 'react'
-import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogFooter } from '@/components/ui'
-import { Button } from '@/components/ui'
-import { Alert, AlertDescription } from '@/components/ui'
-import { FloppyDisk, X, Warning, ShieldCheck } from '@phosphor-icons/react'
+import { useEffect, useState } from 'react'
+import { Alert, AlertDescription, Dialog, DialogContent, DialogHeader, DialogTitle } from '@/components/ui'
+import { Warning } from '@phosphor-icons/react'
 import Editor from '@monaco-editor/react'
+import { toast } from 'sonner'
+
+import { SchemaSection } from './json/SchemaSection'
+import { Toolbar } from './json/Toolbar'
 import { securityScanner, type SecurityScanResult } from '@/lib/security-scanner'
 import { SecurityWarningDialog } from '@/components/organisms/security/SecurityWarningDialog'
-import { toast } from 'sonner'
 
 interface JsonEditorProps {
   open: boolean
@@ -32,10 +33,12 @@ export function JsonEditor({ open, onClose, title, value, onSave, schema }: Json
     }
   }, [open, value])
 
+  const parseJson = () => JSON.parse(jsonText)
+
   const handleSave = () => {
     try {
-      const parsed = JSON.parse(jsonText)
-      
+      const parsed = parseJson()
+
       const scanResult = securityScanner.scanJSON(jsonText)
       setSecurityScanResult(scanResult)
 
@@ -66,8 +69,7 @@ export function JsonEditor({ open, onClose, title, value, onSave, schema }: Json
 
   const handleForceSave = () => {
     try {
-      const parsed = JSON.parse(jsonText)
-      onSave(parsed)
+      onSave(parseJson())
       setError(null)
       setPendingSave(false)
       setShowSecurityDialog(false)
@@ -81,7 +83,7 @@ export function JsonEditor({ open, onClose, title, value, onSave, schema }: Json
     const scanResult = securityScanner.scanJSON(jsonText)
     setSecurityScanResult(scanResult)
     setShowSecurityDialog(true)
-    
+
     if (scanResult.safe) {
       toast.success('No security issues detected')
     } else {
@@ -91,8 +93,7 @@ export function JsonEditor({ open, onClose, title, value, onSave, schema }: Json
 
   const handleFormat = () => {
     try {
-      const parsed = JSON.parse(jsonText)
-      setJsonText(JSON.stringify(parsed, null, 2))
+      setJsonText(JSON.stringify(parseJson(), null, 2))
       setError(null)
     } catch (err) {
       setError(err instanceof Error ? err.message : 'Invalid JSON - cannot format')
@@ -106,7 +107,7 @@ export function JsonEditor({ open, onClose, title, value, onSave, schema }: Json
           <DialogHeader>
             <DialogTitle className="text-2xl">{title}</DialogTitle>
           </DialogHeader>
-          
+
           <div className="space-y-4">
             {error && (
               <Alert variant="destructive">
@@ -115,16 +116,21 @@ export function JsonEditor({ open, onClose, title, value, onSave, schema }: Json
               </Alert>
             )}
 
-            {securityScanResult && securityScanResult.severity !== 'safe' && securityScanResult.severity !== 'low' && !showSecurityDialog && (
-              <Alert className="border-yellow-200 bg-yellow-50">
-                <Warning className="h-5 w-5 text-yellow-600" weight="fill" />
-                <AlertDescription className="text-yellow-800">
-                  {securityScanResult.issues.length} security {securityScanResult.issues.length === 1 ? 'issue' : 'issues'} detected. 
-                  Click Security Scan to review.
-                </AlertDescription>
-              </Alert>
-            )}
-            
+            {securityScanResult &&
+              securityScanResult.severity !== 'safe' &&
+              securityScanResult.severity !== 'low' &&
+              !showSecurityDialog && (
+                <Alert className="border-yellow-200 bg-yellow-50">
+                  <Warning className="h-5 w-5 text-yellow-600" weight="fill" />
+                  <AlertDescription className="text-yellow-800">
+                    {securityScanResult.issues.length} security {securityScanResult.issues.length === 1 ? 'issue' : 'issues'}
+                     detected. Click Security Scan to review.
+                  </AlertDescription>
+                </Alert>
+              )}
+
+            <SchemaSection schema={schema} />
+
             <div className="border rounded-lg overflow-hidden">
               <Editor
                 height="600px"
@@ -157,23 +163,12 @@ export function JsonEditor({ open, onClose, title, value, onSave, schema }: Json
             </div>
           </div>
 
-          <DialogFooter className="gap-2">
-            <Button variant="outline" onClick={handleScan}>
-              <ShieldCheck className="mr-2" />
-              Security Scan
-            </Button>
-            <Button variant="outline" onClick={handleFormat}>
-              Format JSON
-            </Button>
-            <Button variant="outline" onClick={onClose}>
-              <X className="mr-2" />
-              Cancel
-            </Button>
-            <Button onClick={handleSave} className="bg-accent text-accent-foreground hover:bg-accent/90">
-              <FloppyDisk className="mr-2" />
-              Save
-            </Button>
-          </DialogFooter>
+          <Toolbar
+            onScan={handleScan}
+            onFormat={handleFormat}
+            onCancel={onClose}
+            onSave={handleSave}
+          />
         </DialogContent>
       </Dialog>
 

frontends/nextjs/src/components/editors/ThemeEditor.tsx

@@ -1,79 +1,15 @@
-import { useState, useEffect } from 'react'
+import { useEffect, useState } from 'react'
 import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui'
-import { Label } from '@/components/ui'
-import { Input } from '@/components/ui'
 import { Button } from '@/components/ui'
 import { Tabs, TabsContent, TabsList, TabsTrigger } from '@/components/ui'
 import { Switch } from '@/components/ui'
 import { Palette, Sun, Moon, FloppyDisk, ArrowCounterClockwise } from '@phosphor-icons/react'
 import { toast } from 'sonner'
 import { useKV } from '@github/spark/hooks'
-
-interface ThemeColors {
-  background: string
-  foreground: string
-  card: string
-  cardForeground: string
-  primary: string
-  primaryForeground: string
-  secondary: string
-  secondaryForeground: string
-  muted: string
-  mutedForeground: string
-  accent: string
-  accentForeground: string
-  destructive: string
-  destructiveForeground: string
-  border: string
-  input: string
-  ring: string
-}
-
-interface ThemeConfig {
-  light: ThemeColors
-  dark: ThemeColors
-  radius: string
-}
-
-const DEFAULT_LIGHT_THEME: ThemeColors = {
-  background: 'oklch(0.92 0.03 290)',
-  foreground: 'oklch(0.25 0.02 260)',
-  card: 'oklch(1 0 0)',
-  cardForeground: 'oklch(0.25 0.02 260)',
-  primary: 'oklch(0.55 0.18 290)',
-  primaryForeground: 'oklch(0.98 0 0)',
-  secondary: 'oklch(0.35 0.02 260)',
-  secondaryForeground: 'oklch(0.90 0.01 260)',
-  muted: 'oklch(0.95 0.02 290)',
-  mutedForeground: 'oklch(0.50 0.02 260)',
-  accent: 'oklch(0.70 0.17 195)',
-  accentForeground: 'oklch(0.2 0.02 260)',
-  destructive: 'oklch(0.55 0.22 25)',
-  destructiveForeground: 'oklch(0.98 0 0)',
-  border: 'oklch(0.85 0.02 290)',
-  input: 'oklch(0.85 0.02 290)',
-  ring: 'oklch(0.70 0.17 195)',
-}
-
-const DEFAULT_DARK_THEME: ThemeColors = {
-  background: 'oklch(0.145 0 0)',
-  foreground: 'oklch(0.985 0 0)',
-  card: 'oklch(0.205 0 0)',
-  cardForeground: 'oklch(0.985 0 0)',
-  primary: 'oklch(0.922 0 0)',
-  primaryForeground: 'oklch(0.205 0 0)',
-  secondary: 'oklch(0.269 0 0)',
-  secondaryForeground: 'oklch(0.985 0 0)',
-  muted: 'oklch(0.269 0 0)',
-  mutedForeground: 'oklch(0.708 0 0)',
-  accent: 'oklch(0.269 0 0)',
-  accentForeground: 'oklch(0.985 0 0)',
-  destructive: 'oklch(0.704 0.191 22.216)',
-  destructiveForeground: 'oklch(0.98 0 0)',
-  border: 'oklch(1 0 0 / 10%)',
-  input: 'oklch(1 0 0 / 15%)',
-  ring: 'oklch(0.556 0 0)',
-}
+import { PaletteEditor } from './theme/PaletteEditor'
+import { PreviewPane } from './theme/PreviewPane'
+import { DEFAULT_DARK_THEME, DEFAULT_LIGHT_THEME } from './theme/constants'
+import { ThemeColors, ThemeConfig } from './theme/types'
 
 export function ThemeEditor() {
   const [themeConfig, setThemeConfig] = useKV<ThemeConfig>('theme_config', {
@@ -81,7 +17,7 @@ export function ThemeEditor() {
     dark: DEFAULT_DARK_THEME,
     radius: '0.5rem',
   })
-  
+
   const [isDarkMode, setIsDarkMode] = useKV<boolean>('dark_mode_enabled', false)
   const [editingTheme, setEditingTheme] = useState<'light' | 'dark'>('light')
   const [localColors, setLocalColors] = useState<ThemeColors>(DEFAULT_LIGHT_THEME)
@@ -95,30 +31,19 @@ export function ThemeEditor() {
   }, [editingTheme, themeConfig])
 
   useEffect(() => {
-    if (themeConfig) {
-      applyTheme()
-    }
-  }, [themeConfig, isDarkMode])
-
-  const applyTheme = () => {
     if (!themeConfig) return
-    
+
     const root = document.documentElement
     const colors = isDarkMode ? themeConfig.dark : themeConfig.light
-    
+
     Object.entries(colors).forEach(([key, value]) => {
       const cssVarName = key.replace(/([A-Z])/g, '-$1').toLowerCase()
       root.style.setProperty(`--${cssVarName}`, value)
     })
-    
+
     root.style.setProperty('--radius', themeConfig.radius)
-    
-    if (isDarkMode) {
-      root.classList.add('dark')
-    } else {
-      root.classList.remove('dark')
-    }
-  }
+    root.classList.toggle('dark', isDarkMode)
+  }, [isDarkMode, themeConfig])
 
   const handleColorChange = (colorKey: keyof ThemeColors, value: string) => {
     setLocalColors((current) => ({
@@ -130,12 +55,14 @@ export function ThemeEditor() {
   const handleSave = () => {
     setThemeConfig((current) => {
       if (!current) return { light: localColors, dark: DEFAULT_DARK_THEME, radius: localRadius }
+
       return {
         ...current,
         [editingTheme]: localColors,
         radius: localRadius,
       }
     })
+
     toast.success('Theme saved successfully')
   }
 
@@ -151,41 +78,6 @@ export function ThemeEditor() {
     toast.success(checked ? 'Dark mode enabled' : 'Light mode enabled')
   }
 
-  const colorGroups = [
-    {
-      title: 'Base Colors',
-      colors: [
-        { key: 'background' as const, label: 'Background' },
-        { key: 'foreground' as const, label: 'Foreground' },
-        { key: 'card' as const, label: 'Card' },
-        { key: 'cardForeground' as const, label: 'Card Foreground' },
-      ],
-    },
-    {
-      title: 'Action Colors',
-      colors: [
-        { key: 'primary' as const, label: 'Primary' },
-        { key: 'primaryForeground' as const, label: 'Primary Foreground' },
-        { key: 'secondary' as const, label: 'Secondary' },
-        { key: 'secondaryForeground' as const, label: 'Secondary Foreground' },
-        { key: 'accent' as const, label: 'Accent' },
-        { key: 'accentForeground' as const, label: 'Accent Foreground' },
-        { key: 'destructive' as const, label: 'Destructive' },
-        { key: 'destructiveForeground' as const, label: 'Destructive Foreground' },
-      ],
-    },
-    {
-      title: 'Supporting Colors',
-      colors: [
-        { key: 'muted' as const, label: 'Muted' },
-        { key: 'mutedForeground' as const, label: 'Muted Foreground' },
-        { key: 'border' as const, label: 'Border' },
-        { key: 'input' as const, label: 'Input' },
-        { key: 'ring' as const, label: 'Ring' },
-      ],
-    },
-  ]
-
   return (
     <div className="space-y-6">
       <Card>
@@ -196,9 +88,7 @@ export function ThemeEditor() {
                 <Palette size={24} />
                 Theme Editor
               </CardTitle>
-              <CardDescription>
-                Customize the application theme colors and appearance
-              </CardDescription>
+              <CardDescription>Customize the application theme colors and appearance</CardDescription>
             </div>
             <div className="flex items-center gap-3">
               <Sun size={18} className={!isDarkMode ? 'text-amber-500' : 'text-muted-foreground'} />
@@ -207,52 +97,21 @@ export function ThemeEditor() {
             </div>
           </div>
         </CardHeader>
-        <CardContent>
-          <Tabs value={editingTheme} onValueChange={(v) => setEditingTheme(v as 'light' | 'dark')}>
+
+        <CardContent className="space-y-6">
+          <Tabs value={editingTheme} onValueChange={(value) => setEditingTheme(value as 'light' | 'dark')}>
             <TabsList className="grid w-full grid-cols-2">
               <TabsTrigger value="light">Light Theme</TabsTrigger>
               <TabsTrigger value="dark">Dark Theme</TabsTrigger>
             </TabsList>
-            
-            <TabsContent value={editingTheme} className="space-y-6 mt-6">
-              <div className="space-y-4">
-                <div>
-                  <Label htmlFor="radius">Border Radius</Label>
-                  <Input
-                    id="radius"
-                    value={localRadius}
-                    onChange={(e) => setLocalRadius(e.target.value)}
-                    placeholder="e.g., 0.5rem"
-                    className="mt-1.5"
-                  />
-                </div>
-              </div>
 
-              {colorGroups.map((group) => (
-                <div key={group.title} className="space-y-4">
-                  <h3 className="text-sm font-semibold text-foreground">{group.title}</h3>
-                  <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
-                    {group.colors.map(({ key, label }) => (
-                      <div key={key} className="space-y-1.5">
-                        <Label htmlFor={key}>{label}</Label>
-                        <div className="flex gap-2">
-                          <div
-                            className="w-10 h-10 rounded border border-border shrink-0"
-                            style={{ background: localColors[key] }}
-                          />
-                          <Input
-                            id={key}
-                            value={localColors[key]}
-                            onChange={(e) => handleColorChange(key, e.target.value)}
-                            placeholder="oklch(...)"
-                            className="font-mono text-sm"
-                          />
-                        </div>
-                      </div>
-                    ))}
-                  </div>
-                </div>
-              ))}
+            <TabsContent value={editingTheme} className="space-y-6">
+              <PaletteEditor
+                colors={localColors}
+                radius={localRadius}
+                onColorChange={handleColorChange}
+                onRadiusChange={setLocalRadius}
+              />
 
               <div className="flex items-center gap-3 pt-4 border-t border-border">
                 <Button onClick={handleSave} className="gap-2">
@@ -267,26 +126,7 @@ export function ThemeEditor() {
             </TabsContent>
           </Tabs>
 
-          <div className="mt-6 p-4 border border-border rounded-lg bg-muted/30">
-            <h4 className="text-sm font-semibold mb-3">Theme Preview</h4>
-            <div className="space-y-3">
-              <div className="flex gap-2">
-                <Button size="sm">Primary Button</Button>
-                <Button size="sm" variant="secondary">Secondary</Button>
-                <Button size="sm" variant="outline">Outline</Button>
-                <Button size="sm" variant="destructive">Destructive</Button>
-              </div>
-              <Card>
-                <CardHeader>
-                  <CardTitle>Card Example</CardTitle>
-                  <CardDescription>This is a card description</CardDescription>
-                </CardHeader>
-                <CardContent>
-                  <p className="text-sm text-muted-foreground">Card content with muted text</p>
-                </CardContent>
-              </Card>
-            </div>
-          </div>
+          <PreviewPane />
         </CardContent>
       </Card>
     </div>

frontends/nextjs/src/components/editors/json/SchemaSection.tsx

@@ -0,0 +1,26 @@
+import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui'
+
+interface SchemaSectionProps {
+  schema?: unknown
+}
+
+export function SchemaSection({ schema }: SchemaSectionProps) {
+  if (!schema) return null
+
+  const formattedSchema =
+    typeof schema === 'string' ? schema : JSON.stringify(schema, null, 2)
+
+  return (
+    <Card>
+      <CardHeader className="flex flex-col gap-1">
+        <CardTitle>Schema</CardTitle>
+        <CardDescription>Reference for the expected JSON structure</CardDescription>
+      </CardHeader>
+      <CardContent>
+        <pre className="max-h-48 overflow-auto rounded border bg-muted px-3 py-2 text-xs leading-5 whitespace-pre-wrap">
+          {formattedSchema}
+        </pre>
+      </CardContent>
+    </Card>
+  )
+}

frontends/nextjs/src/components/editors/json/Toolbar.tsx

@@ -0,0 +1,31 @@
+import { Button, DialogFooter } from '@/components/ui'
+import { FloppyDisk, ShieldCheck, X } from '@phosphor-icons/react'
+
+interface ToolbarProps {
+  onScan: () => void
+  onFormat: () => void
+  onCancel: () => void
+  onSave: () => void
+}
+
+export function Toolbar({ onScan, onFormat, onCancel, onSave }: ToolbarProps) {
+  return (
+    <DialogFooter className="gap-2">
+      <Button variant="outline" onClick={onScan}>
+        <ShieldCheck className="mr-2" />
+        Security Scan
+      </Button>
+      <Button variant="outline" onClick={onFormat}>
+        Format JSON
+      </Button>
+      <Button variant="outline" onClick={onCancel}>
+        <X className="mr-2" />
+        Cancel
+      </Button>
+      <Button onClick={onSave} className="bg-accent text-accent-foreground hover:bg-accent/90">
+        <FloppyDisk className="mr-2" />
+        Save
+      </Button>
+    </DialogFooter>
+  )
+}

frontends/nextjs/src/components/editors/lua/BlockListView.tsx

@@ -0,0 +1,95 @@
+import type { MouseEvent } from 'react'
+import { Box, Button, Card, CardContent, CardHeader, Stack, TextField, Typography } from '@mui/material'
+import { Add as AddIcon } from '@mui/icons-material'
+import type { LuaScript } from '@/lib/level-types'
+import type { BlockDefinition, BlockSlot, LuaBlock, LuaBlockType } from './types'
+import { BlockList } from './blocks/BlockList'
+import styles from './LuaBlocksEditor.module.scss'
+
+interface BlockListViewProps {
+  activeBlocks: LuaBlock[]
+  blockDefinitionMap: Map<LuaBlockType, BlockDefinition>
+  onRequestAddBlock: (
+    event: MouseEvent<HTMLElement>,
+    target: { parentId: string | null; slot: BlockSlot }
+  ) => void
+  onMoveBlock: (blockId: string, direction: 'up' | 'down') => void
+  onDuplicateBlock: (blockId: string) => void
+  onRemoveBlock: (blockId: string) => void
+  onUpdateField: (blockId: string, fieldName: string, value: string) => void
+  onUpdateScript: (updates: Partial<LuaScript>) => void
+  selectedScript: LuaScript | null
+}
+
+export function BlockListView({
+  activeBlocks,
+  blockDefinitionMap,
+  onRequestAddBlock,
+  onMoveBlock,
+  onDuplicateBlock,
+  onRemoveBlock,
+  onUpdateField,
+  onUpdateScript,
+  selectedScript,
+}: BlockListViewProps) {
+  return (
+    <Card>
+      <CardHeader
+        title="Block workspace"
+        subheader="Stack blocks to generate Lua code"
+        action={
+          <Button
+            variant="contained"
+            startIcon={<AddIcon />}
+            onClick={(event) => onRequestAddBlock(event, { parentId: null, slot: 'root' })}
+            disabled={!selectedScript}
+          >
+            Add block
+          </Button>
+        }
+      />
+      <CardContent>
+        {!selectedScript ? (
+          <Typography variant="body2" color="text.secondary">
+            Select a script to start building blocks.
+          </Typography>
+        ) : (
+          <Stack spacing={3}>
+            <Stack spacing={2} direction={{ xs: 'column', md: 'row' }}>
+              <TextField
+                label="Script name"
+                value={selectedScript.name}
+                onChange={(event) => onUpdateScript({ name: event.target.value })}
+                fullWidth
+              />
+              <TextField
+                label="Description"
+                value={selectedScript.description || ''}
+                onChange={(event) => onUpdateScript({ description: event.target.value })}
+                fullWidth
+              />
+            </Stack>
+            <Box className={styles.workspaceSurface}>
+              {activeBlocks.length > 0 ? (
+                <BlockList
+                  blocks={activeBlocks}
+                  blockDefinitionMap={blockDefinitionMap}
+                  onRequestAddBlock={onRequestAddBlock}
+                  onMoveBlock={onMoveBlock}
+                  onDuplicateBlock={onDuplicateBlock}
+                  onRemoveBlock={onRemoveBlock}
+                  onUpdateField={onUpdateField}
+                />
+              ) : (
+                <Box className={styles.blockEmpty}>Add a block to start building Lua logic.</Box>
+              )}
+            </Box>
+            <Typography variant="caption" color="text.secondary">
+              Blocks are saved in the script as metadata, so you can reload them later.
+            </Typography>
+          </Stack>
+        )}
+      </CardContent>
+    </Card>
+  )
+}

frontends/nextjs/src/components/editors/lua/CodePreview.tsx

@@ -0,0 +1,73 @@
+import { Box, Button, Card, CardContent, CardHeader, Stack, Tooltip } from '@mui/material'
+import { ContentCopy, Refresh as RefreshIcon, Save as SaveIcon } from '@mui/icons-material'
+import type { LuaScript } from '@/lib/level-types'
+import styles from './LuaBlocksEditor.module.scss'
+
+interface CodePreviewProps {
+  generatedCode: string
+  onApplyCode: () => void
+  onCopyCode: () => void
+  onReloadFromCode: () => void
+  selectedScript: LuaScript | null
+}
+
+export function CodePreview({
+  generatedCode,
+  onApplyCode,
+  onCopyCode,
+  onReloadFromCode,
+  selectedScript,
+}: CodePreviewProps) {
+  return (
+    <Card>
+      <CardHeader
+        title="Lua preview"
+        subheader="Generated code from your blocks"
+        action={
+          <Stack direction="row" spacing={1}>
+            <Tooltip title="Reload blocks from script">
+              <span>
+                <Button
+                  size="small"
+                  variant="outlined"
+                  startIcon={<RefreshIcon fontSize="small" />}
+                  onClick={onReloadFromCode}
+                  disabled={!selectedScript}
+                >
+                  Reload
+                </Button>
+              </span>
+            </Tooltip>
+            <Tooltip title="Copy code">
+              <span>
+                <Button
+                  size="small"
+                  variant="outlined"
+                  startIcon={<ContentCopy fontSize="small" />}
+                  onClick={onCopyCode}
+                  disabled={!selectedScript}
+                >
+                  Copy
+                </Button>
+              </span>
+            </Tooltip>
+            <Button
+              size="small"
+              variant="contained"
+              startIcon={<SaveIcon fontSize="small" />}
+              onClick={onApplyCode}
+              disabled={!selectedScript}
+            >
+              Apply to script
+            </Button>
+          </Stack>
+        }
+      />
+      <CardContent>
+        <Box className={styles.codePreview}>
+          <pre>{generatedCode}</pre>
+        </Box>
+      </CardContent>
+    </Card>
+  )
+}

frontends/nextjs/src/components/editors/lua/LuaBlocksEditor.tsx

@@ -5,27 +5,21 @@ import {
   CardContent,
   CardHeader,
   Divider,
+  IconButton,
   List,
   ListItemButton,
   ListItemText,
   Paper,
   Stack,
-  TextField,
   Tooltip,
   Typography,
 } from '@mui/material'
-import {
-  Add as AddIcon,
-  ContentCopy,
-  Delete as DeleteIcon,
-  Refresh as RefreshIcon,
-  Save as SaveIcon,
-} from '@mui/icons-material'
+import { Add as AddIcon, Delete as DeleteIcon } from '@mui/icons-material'
 import type { LuaScript } from '@/lib/level-types'
-import { BlockList } from './blocks/BlockList'
 import { BlockMenu } from './blocks/BlockMenu'
-import { useBlockDefinitions } from './hooks/useBlockDefinitions'
-import { useLuaBlocksState } from './hooks/useLuaBlocksState'
+import { BlockListView } from './BlockListView'
+import { CodePreview } from './CodePreview'
+import { useLuaBlockEditorState } from './hooks/useLuaBlockEditorState'
 import styles from './LuaBlocksEditor.module.scss'
 
 interface LuaBlocksEditorProps {
@@ -34,18 +28,11 @@ interface LuaBlocksEditorProps {
 }
 
 export function LuaBlocksEditor({ scripts, onScriptsChange }: LuaBlocksEditorProps) {
-  const {
-    blockDefinitions,
-    blockDefinitionMap,
-    blocksByCategory,
-    createBlock,
-    cloneBlock,
-    buildLuaFromBlocks,
-    decodeBlocksMetadata,
-  } = useBlockDefinitions()
-
   const {
     activeBlocks,
+    blockDefinitionMap,
+    blockDefinitions,
+    blocksByCategory,
     generatedCode,
     handleAddBlock,
     handleAddScript,
@@ -64,173 +51,7 @@ export function LuaBlocksEditor({ scripts, onScriptsChange }: LuaBlocksEditorPro
     selectedScript,
     selectedScriptId,
     setSelectedScriptId,
-  } = useLuaBlocksState({
-    scripts,
-    onScriptsChange,
-    buildLuaFromBlocks,
-    createBlock,
-    cloneBlock,
-    decodeBlocksMetadata,
-  })
-
-  const renderBlockLibrary = () => (
-    <Card>
-      <CardHeader title="Block library" subheader="Click a block to add it" />
-      <CardContent>
-        <Stack spacing={2}>
-          {Object.entries(blocksByCategory).map(([category, blocks]) => (
-            <Box key={category}>
-              <Typography variant="subtitle2" sx={{ mb: 1 }}>
-                {category}
-              </Typography>
-              <Stack spacing={1}>
-                {blocks.map((block) => (
-                  <Paper
-                    key={block.type}
-                    className={styles.libraryBlock}
-                    data-category={block.category}
-                    onClick={() => handleAddBlock(block.type, { parentId: null, slot: 'root' })}
-                  >
-                    <Box sx={{ display: 'flex', justifyContent: 'space-between', gap: 2 }}>
-                      <Box>
-                        <Typography className={styles.libraryBlockTitle}>{block.label}</Typography>
-                        <Typography className={styles.libraryBlockDesc}>{block.description}</Typography>
-                      </Box>
-                      <Button
-                        size="small"
-                        variant="outlined"
-                        onClick={(event) => {
-                          event.stopPropagation()
-                          handleAddBlock(block.type, { parentId: null, slot: 'root' })
-                        }}
-                      >
-                        Add
-                      </Button>
-                    </Box>
-                  </Paper>
-                ))}
-              </Stack>
-            </Box>
-          ))}
-        </Stack>
-      </CardContent>
-    </Card>
-  )
-
-  const renderWorkspace = () => (
-    <Card>
-      <CardHeader
-        title="Block workspace"
-        subheader="Stack blocks to generate Lua code"
-        action={
-          <Button
-            variant="contained"
-            startIcon={<AddIcon />}
-            onClick={(event) => handleRequestAddBlock(event, { parentId: null, slot: 'root' })}
-            disabled={!selectedScript}
-          >
-            Add block
-          </Button>
-        }
-      />
-      <CardContent>
-        {!selectedScript ? (
-          <Typography variant="body2" color="text.secondary">
-            Select a script to start building blocks.
-          </Typography>
-        ) : (
-          <Stack spacing={3}>
-            <Stack spacing={2} direction={{ xs: 'column', md: 'row' }}>
-              <TextField
-                label="Script name"
-                value={selectedScript.name}
-                onChange={(event) => handleUpdateScript({ name: event.target.value })}
-                fullWidth
-              />
-              <TextField
-                label="Description"
-                value={selectedScript.description || ''}
-                onChange={(event) => handleUpdateScript({ description: event.target.value })}
-                fullWidth
-              />
-            </Stack>
-            <Box className={styles.workspaceSurface}>
-              {activeBlocks.length > 0 ? (
-                <BlockList
-                  blocks={activeBlocks}
-                  blockDefinitionMap={blockDefinitionMap}
-                  onRequestAddBlock={handleRequestAddBlock}
-                  onMoveBlock={handleMoveBlock}
-                  onDuplicateBlock={handleDuplicateBlock}
-                  onRemoveBlock={handleRemoveBlock}
-                  onUpdateField={handleUpdateField}
-                />
-              ) : (
-                <Box className={styles.blockEmpty}>Add a block to start building Lua logic.</Box>
-              )}
-            </Box>
-            <Typography variant="caption" color="text.secondary">
-              Blocks are saved in the script as metadata, so you can reload them later.
-            </Typography>
-          </Stack>
-        )}
-      </CardContent>
-    </Card>
-  )
-
-  const renderScriptList = () => (
-    <Card>
-      <CardHeader
-        title="Lua block scripts"
-        subheader="Create scripts using Scratch-style blocks"
-      />
-      <CardContent>
-        <Stack spacing={2}>
-          <Button variant="contained" startIcon={<AddIcon />} onClick={handleAddScript}>
-            New block script
-          </Button>
-          <Divider />
-          <List disablePadding>
-            {scripts.length === 0 && (
-              <Typography variant="body2" color="text.secondary">
-                No scripts yet. Create a block script to begin.
-              </Typography>
-            )}
-            {scripts.map((script) => (
-              <ListItemButton
-                key={script.id}
-                selected={script.id === selectedScriptId}
-                onClick={() => setSelectedScriptId(script.id)}
-                sx={{
-                  borderRadius: 2,
-                  mb: 1,
-                  alignItems: 'flex-start',
-                }}
-              >
-                <ListItemText
-                  primary={script.name}
-                  secondary={script.description || 'No description'}
-                  primaryTypographyProps={{ fontWeight: 600 }}
-                  secondaryTypographyProps={{ variant: 'caption' }}
-                />
-                <Tooltip title="Delete script">
-                  <IconButton
-                    size="small"
-                    onClick={(event) => {
-                      event.stopPropagation()
-                      handleDeleteScript(script.id)
-                    }}
-                  >
-                    <DeleteIcon fontSize="small" />
-                  </IconButton>
-                </Tooltip>
-              </ListItemButton>
-            ))}
-          </List>
-        </Stack>
-      </CardContent>
-    </Card>
-  )
+  } = useLuaBlockEditorState({ scripts, onScriptsChange })
 
   return (
     <Box className={styles.root}>
@@ -242,55 +63,121 @@ export function LuaBlocksEditor({ scripts, onScriptsChange }: LuaBlocksEditorPro
         }}
       >
         <Stack spacing={3}>
-          {renderScriptList()}
-          {renderBlockLibrary()}
+          <Card>
+            <CardHeader
+              title="Lua block scripts"
+              subheader="Create scripts using Scratch-style blocks"
+            />
+            <CardContent>
+              <Stack spacing={2}>
+                <Button variant="contained" startIcon={<AddIcon />} onClick={handleAddScript}>
+                  New block script
+                </Button>
+                <Divider />
+                <List disablePadding>
+                  {scripts.length === 0 && (
+                    <Typography variant="body2" color="text.secondary">
+                      No scripts yet. Create a block script to begin.
+                    </Typography>
+                  )}
+                  {scripts.map((script) => (
+                    <ListItemButton
+                      key={script.id}
+                      selected={script.id === selectedScriptId}
+                      onClick={() => setSelectedScriptId(script.id)}
+                      sx={{
+                        borderRadius: 2,
+                        mb: 1,
+                        alignItems: 'flex-start',
+                      }}
+                    >
+                      <ListItemText
+                        primary={script.name}
+                        secondary={script.description || 'No description'}
+                        primaryTypographyProps={{ fontWeight: 600 }}
+                        secondaryTypographyProps={{ variant: 'caption' }}
+                      />
+                      <Tooltip title="Delete script">
+                        <IconButton
+                          size="small"
+                          onClick={(event) => {
+                            event.stopPropagation()
+                            handleDeleteScript(script.id)
+                          }}
+                        >
+                          <DeleteIcon fontSize="small" />
+                        </IconButton>
+                      </Tooltip>
+                    </ListItemButton>
+                  ))}
+                </List>
+              </Stack>
+            </CardContent>
+          </Card>
+
+          <Card>
+            <CardHeader title="Block library" subheader="Click a block to add it" />
+            <CardContent>
+              <Stack spacing={2}>
+                {Object.entries(blocksByCategory).map(([category, blocks]) => (
+                  <Box key={category}>
+                    <Typography variant="subtitle2" sx={{ mb: 1 }}>
+                      {category}
+                    </Typography>
+                    <Stack spacing={1}>
+                      {blocks.map((block) => (
+                        <Paper
+                          key={block.type}
+                          className={styles.libraryBlock}
+                          data-category={block.category}
+                          onClick={() => handleAddBlock(block.type, { parentId: null, slot: 'root' })}
+                        >
+                          <Box sx={{ display: 'flex', justifyContent: 'space-between', gap: 2 }}>
+                            <Box>
+                              <Typography className={styles.libraryBlockTitle}>{block.label}</Typography>
+                              <Typography className={styles.libraryBlockDesc}>{block.description}</Typography>
+                            </Box>
+                            <Button
+                              size="small"
+                              variant="outlined"
+                              onClick={(event) => {
+                                event.stopPropagation()
+                                handleAddBlock(block.type, { parentId: null, slot: 'root' })
+                              }}
+                            >
+                              Add
+                            </Button>
+                          </Box>
+                        </Paper>
+                      ))}
+                    </Stack>
+                  </Box>
+                ))}
+              </Stack>
+            </CardContent>
+          </Card>
         </Stack>
 
         <Stack spacing={3}>
-          {renderWorkspace()}
+          <BlockListView
+            activeBlocks={activeBlocks}
+            blockDefinitionMap={blockDefinitionMap}
+            onRequestAddBlock={handleRequestAddBlock}
+            onMoveBlock={handleMoveBlock}
+            onDuplicateBlock={handleDuplicateBlock}
+            onRemoveBlock={handleRemoveBlock}
+            onUpdateField={handleUpdateField}
+            onUpdateScript={handleUpdateScript}
+            selectedScript={selectedScript}
+          />
 
-          <Card>
-            <CardHeader
-              title="Lua preview"
-              subheader="Generated code from your blocks"
-              action={
-                <Stack direction="row" spacing={1}>
-                  <Tooltip title="Reload blocks from script">
-                    <span>
-                      <IconButton
-                        size="small"
-                        onClick={handleReloadFromCode}
-                        disabled={!selectedScript}
-                      >
-                        <RefreshIcon fontSize="small" />
-                      </IconButton>
-                    </span>
-                  </Tooltip>
-                  <Tooltip title="Copy code">
-                    <span>
-                      <IconButton size="small" onClick={handleCopyCode} disabled={!selectedScript}>
-                        <ContentCopy fontSize="small" />
-                      </IconButton>
-                    </span>
-                  </Tooltip>
-                  <Button
-                    size="small"
-                    variant="contained"
-                    startIcon={<SaveIcon fontSize="small" />}
-                    onClick={handleApplyCode}
-                    disabled={!selectedScript}
-                  >
-                    Apply to script
-                  </Button>
-                </Stack>
-              }
-            />
-            <CardContent>
-              <Box className={styles.codePreview}>
-                <pre>{generatedCode}</pre>
-              </Box>
-            </CardContent>
-          </Card>
+          <CodePreview
+            generatedCode={generatedCode}
+            onApplyCode={handleApplyCode}
+            onCopyCode={handleCopyCode}
+            onReloadFromCode={handleReloadFromCode}
+            selectedScript={selectedScript}
+          />
         </Stack>
       </Box>
 

frontends/nextjs/src/components/editors/lua/LuaSnippetLibrary.tsx

@@ -1,34 +1,15 @@
-import { useState } from 'react'
-import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui'
-import { Input } from '@/components/ui'
-import { Button } from '@/components/ui'
-import { Badge } from '@/components/ui'
-import { Tabs, TabsContent, TabsList, TabsTrigger } from '@/components/ui'
-import { ScrollArea } from '@/components/ui'
-import { Separator } from '@/components/ui'
-import {
-  Dialog,
-  DialogContent,
-  DialogDescription,
-  DialogHeader,
-  DialogTitle,
-} from '@/components/ui'
-import { 
-  MagnifyingGlass, 
-  Copy, 
-  Check, 
-  BookOpen, 
-  Tag,
-  ArrowRight,
-  Code
-} from '@phosphor-icons/react'
+import { useMemo, useState } from 'react'
+import { Tabs } from '@/components/ui'
+import { BookOpen } from '@phosphor-icons/react'
 import { toast } from 'sonner'
-import { 
-  LUA_SNIPPET_CATEGORIES, 
-  getSnippetsByCategory, 
+import {
+  getSnippetsByCategory,
   searchSnippets,
-  type LuaSnippet 
+  type LuaSnippet,
 } from '@/lib/lua-snippets'
+import { SearchBar } from './LuaSnippetLibrary/SearchBar'
+import { SnippetDialog } from './LuaSnippetLibrary/SnippetDialog'
+import { SnippetList } from './LuaSnippetLibrary/SnippetList'
 
 interface LuaSnippetLibraryProps {
   onInsertSnippet?: (code: string) => void
@@ -40,9 +21,11 @@ export function LuaSnippetLibrary({ onInsertSnippet }: LuaSnippetLibraryProps) {
   const [selectedSnippet, setSelectedSnippet] = useState<LuaSnippet | null>(null)
   const [copiedId, setCopiedId] = useState<string | null>(null)
 
-  const displayedSnippets = searchQuery 
-    ? searchSnippets(searchQuery)
-    : getSnippetsByCategory(selectedCategory)
+  const displayedSnippets = useMemo(
+    () =>
+      searchQuery ? searchSnippets(searchQuery) : getSnippetsByCategory(selectedCategory),
+    [searchQuery, selectedCategory]
+  )
 
   const handleCopySnippet = (snippet: LuaSnippet) => {
     navigator.clipboard.writeText(snippet.code)
@@ -72,214 +55,39 @@ export function LuaSnippetLibrary({ onInsertSnippet }: LuaSnippetLibraryProps) {
         </p>
       </div>
 
-      <div className="relative">
-        <MagnifyingGlass size={18} className="absolute left-3 top-1/2 -translate-y-1/2 text-muted-foreground" />
-        <Input
-          placeholder="Search snippets by name, description, or tags..."
-          value={searchQuery}
-          onChange={(e) => setSearchQuery(e.target.value)}
-          className="pl-10"
-        />
-      </div>
-
       <Tabs value={selectedCategory} onValueChange={setSelectedCategory}>
-        <ScrollArea className="w-full whitespace-nowrap">
-          <TabsList className="inline-flex w-auto">
-            {LUA_SNIPPET_CATEGORIES.map((category) => (
-              <TabsTrigger key={category} value={category} className="text-xs">
-                {category}
-              </TabsTrigger>
-            ))}
-          </TabsList>
-        </ScrollArea>
+        <SearchBar
+          searchQuery={searchQuery}
+          onSearchChange={setSearchQuery}
+          selectedCategory={selectedCategory}
+          onCategoryChange={setSelectedCategory}
+        />
 
-        {LUA_SNIPPET_CATEGORIES.map((category) => (
-          <TabsContent key={category} value={category} className="mt-6">
-            <div className="grid gap-4 md:grid-cols-2 lg:grid-cols-3">
-              {displayedSnippets.length === 0 ? (
-                <div className="col-span-full text-center py-12 text-muted-foreground">
-                  <Code size={48} className="mx-auto mb-4 opacity-50" />
-                  <p>No snippets found</p>
-                  {searchQuery && (
-                    <p className="text-sm mt-2">Try a different search term</p>
-                  )}
-                </div>
-              ) : (
-                displayedSnippets.map((snippet) => (
-                  <Card 
-                    key={snippet.id} 
-                    className="hover:border-primary transition-colors cursor-pointer group"
-                    onClick={() => setSelectedSnippet(snippet)}
-                  >
-                    <CardHeader className="pb-3">
-                      <div className="flex items-start justify-between gap-2">
-                        <div className="flex-1 min-w-0">
-                          <CardTitle className="text-base font-semibold mb-1 truncate group-hover:text-primary transition-colors">
-                            {snippet.name}
-                          </CardTitle>
-                          <CardDescription className="text-xs line-clamp-2">
-                            {snippet.description}
-                          </CardDescription>
-                        </div>
-                        <Badge variant="outline" className="text-xs shrink-0">
-                          {snippet.category}
-                        </Badge>
-                      </div>
-                    </CardHeader>
-                    <CardContent className="pt-0">
-                      <div className="flex flex-wrap gap-1.5 mb-3">
-                        {snippet.tags.slice(0, 3).map((tag) => (
-                          <Badge key={tag} variant="secondary" className="text-xs">
-                            <Tag size={12} className="mr-1" />
-                            {tag}
-                          </Badge>
-                        ))}
-                        {snippet.tags.length > 3 && (
-                          <Badge variant="secondary" className="text-xs">
-                            +{snippet.tags.length - 3}
-                          </Badge>
-                        )}
-                      </div>
-                      <div className="flex gap-2">
-                        <Button
-                          size="sm"
-                          variant="outline"
-                          className="flex-1"
-                          onClick={(e) => {
-                            e.stopPropagation()
-                            handleCopySnippet(snippet)
-                          }}
-                        >
-                          {copiedId === snippet.id ? (
-                            <>
-                              <Check size={14} className="mr-1.5" />
-                              Copied
-                            </>
-                          ) : (
-                            <>
-                              <Copy size={14} className="mr-1.5" />
-                              Copy
-                            </>
-                          )}
-                        </Button>
-                        {onInsertSnippet && (
-                          <Button
-                            size="sm"
-                            className="flex-1"
-                            onClick={(e) => {
-                              e.stopPropagation()
-                              handleInsertSnippet(snippet)
-                            }}
-                          >
-                            <ArrowRight size={14} className="mr-1.5" />
-                            Insert
-                          </Button>
-                        )}
-                      </div>
-                    </CardContent>
-                  </Card>
-                ))
-              )}
-            </div>
-          </TabsContent>
-        ))}
+        <SnippetList
+          snippets={displayedSnippets}
+          searchQuery={searchQuery}
+          selectedCategory={selectedCategory}
+          onSelectSnippet={setSelectedSnippet}
+          onCopySnippet={handleCopySnippet}
+          onInsertSnippet={onInsertSnippet ? handleInsertSnippet : undefined}
+          copiedId={copiedId}
+        />
       </Tabs>
 
-      <Dialog open={!!selectedSnippet} onOpenChange={() => setSelectedSnippet(null)}>
-        <DialogContent className="max-w-4xl max-h-[90vh] overflow-hidden flex flex-col">
-          <DialogHeader>
-            <div className="flex items-start justify-between gap-4">
-              <div className="flex-1">
-                <DialogTitle className="text-xl mb-2">{selectedSnippet?.name}</DialogTitle>
-                <DialogDescription>{selectedSnippet?.description}</DialogDescription>
-              </div>
-              <Badge variant="outline">{selectedSnippet?.category}</Badge>
-            </div>
-          </DialogHeader>
-          
-          <div className="flex-1 overflow-auto space-y-4">
-            {selectedSnippet?.tags && selectedSnippet.tags.length > 0 && (
-              <div className="flex flex-wrap gap-2">
-                {selectedSnippet.tags.map((tag) => (
-                  <Badge key={tag} variant="secondary">
-                    <Tag size={12} className="mr-1" />
-                    {tag}
-                  </Badge>
-                ))}
-              </div>
-            )}
-
-            {selectedSnippet?.parameters && selectedSnippet.parameters.length > 0 && (
-              <div>
-                <h4 className="text-sm font-semibold mb-3 flex items-center gap-2">
-                  <Code size={16} />
-                  Parameters
-                </h4>
-                <div className="space-y-2">
-                  {selectedSnippet.parameters.map((param) => (
-                    <div key={param.name} className="bg-muted/50 rounded-lg p-3 border">
-                      <div className="flex items-center gap-2 mb-1">
-                        <code className="text-sm font-mono font-semibold text-primary">
-                          {param.name}
-                        </code>
-                        <Badge variant="outline" className="text-xs">
-                          {param.type}
-                        </Badge>
-                      </div>
-                      <p className="text-xs text-muted-foreground">{param.description}</p>
-                    </div>
-                  ))}
-                </div>
-              </div>
-            )}
-
-            <Separator />
-
-            <div>
-              <h4 className="text-sm font-semibold mb-3">Code</h4>
-              <div className="bg-slate-950 text-slate-50 rounded-lg p-4 overflow-x-auto">
-                <pre className="text-xs font-mono leading-relaxed">
-                  <code>{selectedSnippet?.code}</code>
-                </pre>
-              </div>
-            </div>
-
-            <div className="flex gap-2">
-              <Button
-                className="flex-1"
-                onClick={() => selectedSnippet && handleCopySnippet(selectedSnippet)}
-              >
-                {copiedId === selectedSnippet?.id ? (
-                  <>
-                    <Check size={16} className="mr-2" />
-                    Copied to Clipboard
-                  </>
-                ) : (
-                  <>
-                    <Copy size={16} className="mr-2" />
-                    Copy to Clipboard
-                  </>
-                )}
-              </Button>
-              {onInsertSnippet && (
-                <Button
-                  variant="secondary"
-                  className="flex-1"
-                  onClick={() => {
-                    if (selectedSnippet) {
-                      handleInsertSnippet(selectedSnippet)
-                      setSelectedSnippet(null)
-                    }
-                  }}
-                >
-                  <ArrowRight size={16} className="mr-2" />
-                  Insert into Editor
-                </Button>
-              )}
-            </div>
-          </div>
-        </DialogContent>
-      </Dialog>
+      <SnippetDialog
+        snippet={selectedSnippet}
+        copiedId={copiedId}
+        onCopy={handleCopySnippet}
+        onInsert={
+          onInsertSnippet
+            ? (snippet) => {
+                handleInsertSnippet(snippet)
+                setSelectedSnippet(null)
+              }
+            : undefined
+        }
+        onClose={() => setSelectedSnippet(null)}
+      />
     </div>
   )
 }

frontends/nextjs/src/components/editors/lua/LuaSnippetLibrary/SearchBar.tsx

@@ -0,0 +1,44 @@
+import { MagnifyingGlass } from '@phosphor-icons/react'
+import { Input, ScrollArea, TabsList, TabsTrigger } from '@/components/ui'
+import { LUA_SNIPPET_CATEGORIES } from '@/lib/lua-snippets'
+
+interface SearchBarProps {
+  searchQuery: string
+  onSearchChange: (value: string) => void
+  selectedCategory: string
+  onCategoryChange: (category: string) => void
+}
+
+export function SearchBar({
+  searchQuery,
+  onSearchChange,
+  selectedCategory,
+  onCategoryChange,
+}: SearchBarProps) {
+  return (
+    <div className="space-y-4">
+      <div className="relative">
+        <MagnifyingGlass
+          size={18}
+          className="absolute left-3 top-1/2 -translate-y-1/2 text-muted-foreground"
+        />
+        <Input
+          placeholder="Search snippets by name, description, or tags..."
+          value={searchQuery}
+          onChange={(e) => onSearchChange(e.target.value)}
+          className="pl-10"
+        />
+      </div>
+
+      <ScrollArea className="w-full whitespace-nowrap">
+        <TabsList className="inline-flex w-auto">
+          {LUA_SNIPPET_CATEGORIES.map((category) => (
+            <TabsTrigger key={category} value={category} className="text-xs">
+              {category}
+            </TabsTrigger>
+          ))}
+        </TabsList>
+      </ScrollArea>
+    </div>
+  )
+}

frontends/nextjs/src/components/editors/lua/LuaSnippetLibrary/SnippetDialog.tsx

@@ -0,0 +1,116 @@
+import {
+  Badge,
+  Button,
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogHeader,
+  DialogTitle,
+  Separator,
+} from '@/components/ui'
+import { ArrowRight, Check, Code, Copy, Tag } from '@phosphor-icons/react'
+import { type LuaSnippet } from '@/lib/lua-snippets'
+
+interface SnippetDialogProps {
+  snippet: LuaSnippet | null
+  copiedId: string | null
+  onCopy: (snippet: LuaSnippet) => void
+  onInsert?: (snippet: LuaSnippet) => void
+  onClose: () => void
+}
+
+export function SnippetDialog({
+  snippet,
+  copiedId,
+  onCopy,
+  onInsert,
+  onClose,
+}: SnippetDialogProps) {
+  return (
+    <Dialog open={!!snippet} onOpenChange={(isOpen) => !isOpen && onClose()}>
+      <DialogContent className="max-w-4xl max-h-[90vh] overflow-hidden flex flex-col">
+        <DialogHeader>
+          <div className="flex items-start justify-between gap-4">
+            <div className="flex-1">
+              <DialogTitle className="text-xl mb-2">{snippet?.name}</DialogTitle>
+              <DialogDescription>{snippet?.description}</DialogDescription>
+            </div>
+            <Badge variant="outline">{snippet?.category}</Badge>
+          </div>
+        </DialogHeader>
+
+        <div className="flex-1 overflow-auto space-y-4">
+          {snippet?.tags && snippet.tags.length > 0 && (
+            <div className="flex flex-wrap gap-2">
+              {snippet.tags.map((tag) => (
+                <Badge key={tag} variant="secondary">
+                  <Tag size={12} className="mr-1" />
+                  {tag}
+                </Badge>
+              ))}
+            </div>
+          )}
+
+          {snippet?.parameters && snippet.parameters.length > 0 && (
+            <div>
+              <h4 className="text-sm font-semibold mb-3 flex items-center gap-2">
+                <Code size={16} />
+                Parameters
+              </h4>
+              <div className="space-y-2">
+                {snippet.parameters.map((param) => (
+                  <div key={param.name} className="bg-muted/50 rounded-lg p-3 border">
+                    <div className="flex items-center gap-2 mb-1">
+                      <code className="text-sm font-mono font-semibold text-primary">{param.name}</code>
+                      <Badge variant="outline" className="text-xs">
+                        {param.type}
+                      </Badge>
+                    </div>
+                    <p className="text-xs text-muted-foreground">{param.description}</p>
+                  </div>
+                ))}
+              </div>
+            </div>
+          )}
+
+          <Separator />
+
+          <div>
+            <h4 className="text-sm font-semibold mb-3">Code</h4>
+            <div className="bg-slate-950 text-slate-50 rounded-lg p-4 overflow-x-auto">
+              <pre className="text-xs font-mono leading-relaxed">
+                <code>{snippet?.code}</code>
+              </pre>
+            </div>
+          </div>
+
+          <div className="flex gap-2">
+            <Button className="flex-1" onClick={() => snippet && onCopy(snippet)}>
+              {copiedId === snippet?.id ? (
+                <>
+                  <Check size={16} className="mr-2" />
+                  Copied to Clipboard
+                </>
+              ) : (
+                <>
+                  <Copy size={16} className="mr-2" />
+                  Copy to Clipboard
+                </>
+              )}
+            </Button>
+            {onInsert && (
+              <Button
+                variant="secondary"
+                className="flex-1"
+                onClick={() => snippet && onInsert(snippet)}
+              >
+                <ArrowRight size={16} className="mr-2" />
+                Insert into Editor
+              </Button>
+            )}
+          </div>
+        </div>
+      </DialogContent>
+    </Dialog>
+  )
+}

frontends/nextjs/src/components/editors/lua/LuaSnippetLibrary/SnippetList.tsx

@@ -0,0 +1,125 @@
+import {
+  Badge,
+  Button,
+  Card,
+  CardContent,
+  CardDescription,
+  CardHeader,
+  CardTitle,
+  TabsContent,
+} from '@/components/ui'
+import { ArrowRight, Check, Code, Copy, Tag } from '@phosphor-icons/react'
+import { LUA_SNIPPET_CATEGORIES, type LuaSnippet } from '@/lib/lua-snippets'
+
+interface SnippetListProps {
+  snippets: LuaSnippet[]
+  searchQuery: string
+  selectedCategory: string
+  onSelectSnippet: (snippet: LuaSnippet) => void
+  onCopySnippet: (snippet: LuaSnippet) => void
+  onInsertSnippet?: (snippet: LuaSnippet) => void
+  copiedId: string | null
+}
+
+export function SnippetList({
+  snippets,
+  searchQuery,
+  selectedCategory,
+  onSelectSnippet,
+  onCopySnippet,
+  onInsertSnippet,
+  copiedId,
+}: SnippetListProps) {
+  return (
+    <>
+      {LUA_SNIPPET_CATEGORIES.map((category) => (
+        <TabsContent key={category} value={category} className="mt-6">
+          <div className="grid gap-4 md:grid-cols-2 lg:grid-cols-3">
+            {snippets.length === 0 ? (
+              <div className="col-span-full text-center py-12 text-muted-foreground">
+                <Code size={48} className="mx-auto mb-4 opacity-50" />
+                <p>No snippets found</p>
+                {searchQuery && <p className="text-sm mt-2">Try a different search term</p>}
+              </div>
+            ) : (
+              snippets.map((snippet) => (
+                <Card
+                  key={`${selectedCategory}-${snippet.id}`}
+                  className="hover:border-primary transition-colors cursor-pointer group"
+                  onClick={() => onSelectSnippet(snippet)}
+                >
+                  <CardHeader className="pb-3">
+                    <div className="flex items-start justify-between gap-2">
+                      <div className="flex-1 min-w-0">
+                        <CardTitle className="text-base font-semibold mb-1 truncate group-hover:text-primary transition-colors">
+                          {snippet.name}
+                        </CardTitle>
+                        <CardDescription className="text-xs line-clamp-2">
+                          {snippet.description}
+                        </CardDescription>
+                      </div>
+                      <Badge variant="outline" className="text-xs shrink-0">
+                        {snippet.category}
+                      </Badge>
+                    </div>
+                  </CardHeader>
+                  <CardContent className="pt-0">
+                    <div className="flex flex-wrap gap-1.5 mb-3">
+                      {snippet.tags.slice(0, 3).map((tag) => (
+                        <Badge key={tag} variant="secondary" className="text-xs">
+                          <Tag size={12} className="mr-1" />
+                          {tag}
+                        </Badge>
+                      ))}
+                      {snippet.tags.length > 3 && (
+                        <Badge variant="secondary" className="text-xs">
+                          +{snippet.tags.length - 3}
+                        </Badge>
+                      )}
+                    </div>
+                    <div className="flex gap-2">
+                      <Button
+                        size="sm"
+                        variant="outline"
+                        className="flex-1"
+                        onClick={(e) => {
+                          e.stopPropagation()
+                          onCopySnippet(snippet)
+                        }}
+                      >
+                        {copiedId === snippet.id ? (
+                          <>
+                            <Check size={14} className="mr-1.5" />
+                            Copied
+                          </>
+                        ) : (
+                          <>
+                            <Copy size={14} className="mr-1.5" />
+                            Copy
+                          </>
+                        )}
+                      </Button>
+                      {onInsertSnippet && (
+                        <Button
+                          size="sm"
+                          className="flex-1"
+                          onClick={(e) => {
+                            e.stopPropagation()
+                            onInsertSnippet(snippet)
+                          }}
+                        >
+                          <ArrowRight size={14} className="mr-1.5" />
+                          Insert
+                        </Button>
+                      )}
+                    </div>
+                  </CardContent>
+                </Card>
+              ))
+            )}
+          </div>
+        </TabsContent>
+      ))}
+    </>
+  )
+}

frontends/nextjs/src/components/editors/lua/blocks/BlockItem.tsx

@@ -0,0 +1,218 @@
+import type { MouseEvent } from 'react'
+import {
+  Box,
+  Button,
+  IconButton,
+  MenuItem,
+  TextField,
+  Tooltip,
+  Typography,
+} from '@mui/material'
+import {
+  Add as AddIcon,
+  ArrowDownward,
+  ArrowUpward,
+  ContentCopy,
+  Delete as DeleteIcon,
+} from '@mui/icons-material'
+import type { BlockDefinition, BlockSlot, LuaBlock } from '../types'
+import styles from '../LuaBlocksEditor.module.scss'
+
+interface BlockItemProps {
+  block: LuaBlock
+  definition: BlockDefinition
+  index: number
+  total: number
+  onRequestAddBlock: (
+    event: MouseEvent<HTMLElement>,
+    target: { parentId: string | null; slot: BlockSlot }
+  ) => void
+  onMoveBlock: (blockId: string, direction: 'up' | 'down') => void
+  onDuplicateBlock: (blockId: string) => void
+  onRemoveBlock: (blockId: string) => void
+  onUpdateField: (blockId: string, fieldName: string, value: string) => void
+  renderNestedList: (blocks?: LuaBlock[]) => JSX.Element
+}
+
+interface BlockSectionProps {
+  title: string
+  blocks: LuaBlock[] | undefined
+  parentId: string
+  slot: BlockSlot
+  onRequestAddBlock: (
+    event: MouseEvent<HTMLElement>,
+    target: { parentId: string | null; slot: BlockSlot }
+  ) => void
+  renderNestedList: (blocks?: LuaBlock[]) => JSX.Element
+}
+
+const BlockSection = ({
+  title,
+  blocks,
+  parentId,
+  slot,
+  onRequestAddBlock,
+  renderNestedList,
+}: BlockSectionProps) => (
+  <Box className={styles.blockSection}>
+    <Box className={styles.blockSectionHeader}>
+      <Typography className={styles.blockSectionTitle}>{title}</Typography>
+      <Button
+        size="small"
+        variant="contained"
+        onClick={(event) => onRequestAddBlock(event, { parentId, slot })}
+        startIcon={<AddIcon fontSize="small" />}
+      >
+        Add block
+      </Button>
+    </Box>
+    <Box className={styles.blockSectionBody}>
+      {blocks && blocks.length > 0 ? (
+        renderNestedList(blocks)
+      ) : (
+        <Box className={styles.blockEmpty}>Drop blocks here to build this section.</Box>
+      )}
+    </Box>
+  </Box>
+)
+
+const BlockFields = ({
+  block,
+  definition,
+  onUpdateField,
+}: {
+  block: LuaBlock
+  definition: BlockDefinition
+  onUpdateField: (blockId: string, fieldName: string, value: string) => void
+}) => {
+  if (definition.fields.length === 0) return null
+
+  return (
+    <Box className={styles.blockFields}>
+      {definition.fields.map((field) => (
+        <Box key={field.name}>
+          <Typography className={styles.blockFieldLabel}>{field.label}</Typography>
+          {field.type === 'select' ? (
+            <TextField
+              select
+              size="small"
+              value={block.fields[field.name]}
+              onChange={(event) => onUpdateField(block.id, field.name, event.target.value)}
+              fullWidth
+              variant="outlined"
+              InputProps={{
+                sx: { backgroundColor: 'rgba(255,255,255,0.95)' },
+              }}
+            >
+              {field.options?.map((option) => (
+                <MenuItem key={option.value} value={option.value}>
+                  {option.label}
+                </MenuItem>
+              ))}
+            </TextField>
+          ) : (
+            <TextField
+              size="small"
+              value={block.fields[field.name]}
+              onChange={(event) => onUpdateField(block.id, field.name, event.target.value)}
+              placeholder={field.placeholder}
+              fullWidth
+              variant="outlined"
+              type={field.type === 'number' ? 'number' : 'text'}
+              InputProps={{
+                sx: { backgroundColor: 'rgba(255,255,255,0.95)' },
+              }}
+            />
+          )}
+        </Box>
+      ))}
+    </Box>
+  )
+}
+
+export const BlockItem = ({
+  block,
+  definition,
+  index,
+  total,
+  onRequestAddBlock,
+  onMoveBlock,
+  onDuplicateBlock,
+  onRemoveBlock,
+  onUpdateField,
+  renderNestedList,
+}: BlockItemProps) => (
+  <Box className={styles.blockCard} data-category={definition.category}>
+    <Box className={styles.blockHeader}>
+      <Typography className={styles.blockTitle}>{definition.label}</Typography>
+      <Box className={styles.blockActions}>
+        <Tooltip title="Move up">
+          <span>
+            <IconButton
+              size="small"
+              onClick={() => onMoveBlock(block.id, 'up')}
+              disabled={index === 0}
+              sx={{ color: 'rgba(255,255,255,0.85)' }}
+            >
+              <ArrowUpward fontSize="inherit" />
+            </IconButton>
+          </span>
+        </Tooltip>
+        <Tooltip title="Move down">
+          <span>
+            <IconButton
+              size="small"
+              onClick={() => onMoveBlock(block.id, 'down')}
+              disabled={index === total - 1}
+              sx={{ color: 'rgba(255,255,255,0.85)' }}
+            >
+              <ArrowDownward fontSize="inherit" />
+            </IconButton>
+          </span>
+        </Tooltip>
+        <Tooltip title="Duplicate block">
+          <IconButton
+            size="small"
+            onClick={() => onDuplicateBlock(block.id)}
+            sx={{ color: 'rgba(255,255,255,0.85)' }}
+          >
+            <ContentCopy fontSize="inherit" />
+          </IconButton>
+        </Tooltip>
+        <Tooltip title="Delete block">
+          <IconButton
+            size="small"
+            onClick={() => onRemoveBlock(block.id)}
+            sx={{ color: 'rgba(255,255,255,0.85)' }}
+          >
+            <DeleteIcon fontSize="inherit" />
+          </IconButton>
+        </Tooltip>
+      </Box>
+    </Box>
+
+    <BlockFields block={block} definition={definition} onUpdateField={onUpdateField} />
+
+    {definition.hasChildren && (
+      <BlockSection
+        title="Then"
+        blocks={block.children}
+        parentId={block.id}
+        slot="children"
+        onRequestAddBlock={onRequestAddBlock}
+        renderNestedList={renderNestedList}
+      />
+    )}
+
+    {definition.hasElseChildren && (
+      <BlockSection
+        title="Else"
+        blocks={block.elseChildren}
+        parentId={block.id}
+        slot="elseChildren"
+        onRequestAddBlock={onRequestAddBlock}
+        renderNestedList={renderNestedList}
+      />
+    )}
+  </Box>
+)

frontends/nextjs/src/components/editors/lua/blocks/BlockList.tsx

@@ -1,22 +1,8 @@
 import type { MouseEvent } from 'react'
-import {
-  Box,
-  Button,
-  IconButton,
-  MenuItem,
-  TextField,
-  Tooltip,
-  Typography,
-} from '@mui/material'
-import {
-  Add as AddIcon,
-  ArrowDownward,
-  ArrowUpward,
-  ContentCopy,
-  Delete as DeleteIcon,
-} from '@mui/icons-material'
+import { Box } from '@mui/material'
 import type { BlockDefinition, BlockSlot, LuaBlock, LuaBlockType } from '../types'
 import styles from '../LuaBlocksEditor.module.scss'
+import { BlockItem } from './BlockItem'
 
 interface BlockListProps {
   blocks: LuaBlock[]
@@ -31,89 +17,6 @@ interface BlockListProps {
   onUpdateField: (blockId: string, fieldName: string, value: string) => void
 }
 
-const renderBlockFields = (
-  block: LuaBlock,
-  definition: BlockDefinition,
-  onUpdateField: (blockId: string, fieldName: string, value: string) => void
-) => {
-  if (definition.fields.length === 0) return null
-
-  return (
-    <Box className={styles.blockFields}>
-      {definition.fields.map((field) => (
-        <Box key={field.name}>
-          <Typography className={styles.blockFieldLabel}>{field.label}</Typography>
-          {field.type === 'select' ? (
-            <TextField
-              select
-              size="small"
-              value={block.fields[field.name]}
-              onChange={(event) => onUpdateField(block.id, field.name, event.target.value)}
-              fullWidth
-              variant="outlined"
-              InputProps={{
-                sx: { backgroundColor: 'rgba(255,255,255,0.95)' },
-              }}
-            >
-              {field.options?.map((option) => (
-                <MenuItem key={option.value} value={option.value}>
-                  {option.label}
-                </MenuItem>
-              ))}
-            </TextField>
-          ) : (
-            <TextField
-              size="small"
-              value={block.fields[field.name]}
-              onChange={(event) => onUpdateField(block.id, field.name, event.target.value)}
-              placeholder={field.placeholder}
-              fullWidth
-              variant="outlined"
-              type={field.type === 'number' ? 'number' : 'text'}
-              InputProps={{
-                sx: { backgroundColor: 'rgba(255,255,255,0.95)' },
-              }}
-            />
-          )}
-        </Box>
-      ))}
-    </Box>
-  )
-}
-
-const renderBlockSection = (
-  title: string,
-  blocks: LuaBlock[] | undefined,
-  parentId: string | null,
-  slot: BlockSlot,
-  onRequestAddBlock: (
-    event: MouseEvent<HTMLElement>,
-    target: { parentId: string | null; slot: BlockSlot }
-  ) => void,
-  renderBlockCard: (block: LuaBlock, index: number, total: number) => JSX.Element | null
-) => (
-  <Box className={styles.blockSection}>
-    <Box className={styles.blockSectionHeader}>
-      <Typography className={styles.blockSectionTitle}>{title}</Typography>
-      <Button
-        size="small"
-        variant="contained"
-        onClick={(event) => onRequestAddBlock(event, { parentId, slot })}
-        startIcon={<AddIcon fontSize="small" />}
-      >
-        Add block
-      </Button>
-    </Box>
-    <Box className={styles.blockSectionBody}>
-      {blocks && blocks.length > 0 ? (
-        blocks.map((child, index) => renderBlockCard(child, index, blocks.length))
-      ) : (
-        <Box className={styles.blockEmpty}>Drop blocks here to build this section.</Box>
-      )}
-    </Box>
-  </Box>
-)
-
 export const BlockList = ({
   blocks,
   blockDefinitionMap,
@@ -123,78 +26,40 @@ export const BlockList = ({
   onRemoveBlock,
   onUpdateField,
 }: BlockListProps) => {
-  const renderBlockCard = (block: LuaBlock, index: number, total: number) => {
-    const definition = blockDefinitionMap.get(block.type)
-    if (!definition) return null
-
-    return (
-      <Box key={block.id} className={styles.blockCard} data-category={definition.category}>
-        <Box className={styles.blockHeader}>
-          <Typography className={styles.blockTitle}>{definition.label}</Typography>
-          <Box className={styles.blockActions}>
-            <Tooltip title="Move up">
-              <span>
-                <IconButton
-                  size="small"
-                  onClick={() => onMoveBlock(block.id, 'up')}
-                  disabled={index === 0}
-                  sx={{ color: 'rgba(255,255,255,0.85)' }}
-                >
-                  <ArrowUpward fontSize="inherit" />
-                </IconButton>
-              </span>
-            </Tooltip>
-            <Tooltip title="Move down">
-              <span>
-                <IconButton
-                  size="small"
-                  onClick={() => onMoveBlock(block.id, 'down')}
-                  disabled={index === total - 1}
-                  sx={{ color: 'rgba(255,255,255,0.85)' }}
-                >
-                  <ArrowDownward fontSize="inherit" />
-                </IconButton>
-              </span>
-            </Tooltip>
-            <Tooltip title="Duplicate block">
-              <IconButton
-                size="small"
-                onClick={() => onDuplicateBlock(block.id)}
-                sx={{ color: 'rgba(255,255,255,0.85)' }}
-              >
-                <ContentCopy fontSize="inherit" />
-              </IconButton>
-            </Tooltip>
-            <Tooltip title="Delete block">
-              <IconButton
-                size="small"
-                onClick={() => onRemoveBlock(block.id)}
-                sx={{ color: 'rgba(255,255,255,0.85)' }}
-              >
-                <DeleteIcon fontSize="inherit" />
-              </IconButton>
-            </Tooltip>
-          </Box>
-        </Box>
-        {renderBlockFields(block, definition, onUpdateField)}
-        {definition.hasChildren &&
-          renderBlockSection('Then', block.children, block.id, 'children', onRequestAddBlock, renderBlockCard)}
-        {definition.hasElseChildren &&
-          renderBlockSection(
-            'Else',
-            block.elseChildren,
-            block.id,
-            'elseChildren',
-            onRequestAddBlock,
-            renderBlockCard
-          )}
-      </Box>
-    )
-  }
+  const renderNestedList = (childBlocks?: LuaBlock[]) => (
+    <BlockList
+      blocks={childBlocks ?? []}
+      blockDefinitionMap={blockDefinitionMap}
+      onRequestAddBlock={onRequestAddBlock}
+      onMoveBlock={onMoveBlock}
+      onDuplicateBlock={onDuplicateBlock}
+      onRemoveBlock={onRemoveBlock}
+      onUpdateField={onUpdateField}
+    />
+  )
 
   return (
     <Box className={styles.blockStack}>
-      {blocks.map((block, index) => renderBlockCard(block, index, blocks.length))}
+      {blocks.map((block, index) => {
+        const definition = blockDefinitionMap.get(block.type)
+        if (!definition) return null
+
+        return (
+          <BlockItem
+            key={block.id}
+            block={block}
+            definition={definition}
+            index={index}
+            total={blocks.length}
+            onRequestAddBlock={onRequestAddBlock}
+            onMoveBlock={onMoveBlock}
+            onDuplicateBlock={onDuplicateBlock}
+            onRemoveBlock={onRemoveBlock}
+            onUpdateField={onUpdateField}
+            renderNestedList={renderNestedList}
+          />
+        )
+      })}
     </Box>
   )
 }

frontends/nextjs/src/components/editors/lua/blocks/grouping.ts

@@ -0,0 +1,20 @@
+import type { BlockCategory, BlockDefinition } from '../types'
+
+const createCategoryIndex = (): Record<BlockCategory, BlockDefinition[]> => ({
+  Basics: [],
+  Logic: [],
+  Loops: [],
+  Data: [],
+  Functions: [],
+})
+
+export const groupBlockDefinitionsByCategory = (definitions: BlockDefinition[]) => {
+  const categories = createCategoryIndex()
+  definitions.forEach((definition) => {
+    categories[definition.category].push(definition)
+  })
+  return categories
+}
+
+export const buildBlockDefinitionMap = (definitions: BlockDefinition[]) =>
+  new Map(definitions.map((definition) => [definition.type, definition]))

frontends/nextjs/src/components/editors/lua/blocks/index.ts

@@ -1,4 +1,4 @@
-import type { BlockCategory, BlockDefinition } from '../types'
+import type { BlockDefinition } from '../types'
 import { basicBlocks } from './basics'
 import { dataBlocks } from './data'
 import { functionBlocks } from './functions'
@@ -13,21 +13,4 @@ export const BLOCK_DEFINITIONS: BlockDefinition[] = [
   ...functionBlocks,
 ]
 
-const createCategoryIndex = (): Record<BlockCategory, BlockDefinition[]> => ({
-  Basics: [],
-  Logic: [],
-  Loops: [],
-  Data: [],
-  Functions: [],
-})
-
-export const groupBlockDefinitionsByCategory = (definitions: BlockDefinition[]) => {
-  const categories = createCategoryIndex()
-  definitions.forEach((definition) => {
-    categories[definition.category].push(definition)
-  })
-  return categories
-}
-
-export const buildBlockDefinitionMap = (definitions: BlockDefinition[]) =>
-  new Map(definitions.map((definition) => [definition.type, definition]))
+export { buildBlockDefinitionMap, groupBlockDefinitionsByCategory } from './grouping'

frontends/nextjs/src/components/editors/lua/hooks/useLuaBlockEditorState.ts

@@ -0,0 +1,26 @@
+import type { LuaScript } from '@/lib/level-types'
+import { useBlockDefinitions } from './useBlockDefinitions'
+import { useLuaBlocksState } from './useLuaBlocksState'
+
+interface UseLuaBlockEditorStateProps {
+  scripts: LuaScript[]
+  onScriptsChange: (scripts: LuaScript[]) => void
+}
+
+export function useLuaBlockEditorState({ scripts, onScriptsChange }: UseLuaBlockEditorStateProps) {
+  const blockDefinitionState = useBlockDefinitions()
+
+  const luaBlockState = useLuaBlocksState({
+    scripts,
+    onScriptsChange,
+    buildLuaFromBlocks: blockDefinitionState.buildLuaFromBlocks,
+    createBlock: blockDefinitionState.createBlock,
+    cloneBlock: blockDefinitionState.cloneBlock,
+    decodeBlocksMetadata: blockDefinitionState.decodeBlocksMetadata,
+  })
+
+  return {
+    ...blockDefinitionState,
+    ...luaBlockState,
+  }
+}

frontends/nextjs/src/components/editors/lua/hooks/useLuaBlocksState.ts

@@ -1,7 +1,8 @@
-import { useEffect, useMemo, useState, type MouseEvent } from 'react'
-import { toast } from 'sonner'
+import { useEffect, useMemo, useState } from 'react'
 import type { LuaScript } from '@/lib/level-types'
-import type { BlockSlot, LuaBlock, LuaBlockType } from '../types'
+import type { LuaBlock, LuaBlockType } from '../types'
+import { createLuaBlocksActions, type MenuTarget } from './useLuaBlocksState/actions'
+import { selectActiveBlocks, selectSelectedScript } from './useLuaBlocksState/selectors'
 
 interface UseLuaBlocksStateProps {
   scripts: LuaScript[]
@@ -12,108 +13,6 @@ interface UseLuaBlocksStateProps {
   decodeBlocksMetadata: (code: string) => LuaBlock[] | null
 }
 
-interface MenuTarget {
-  parentId: string | null
-  slot: BlockSlot
-}
-
-const addBlockToTree = (
-  blocks: LuaBlock[],
-  parentId: string | null,
-  slot: BlockSlot,
-  newBlock: LuaBlock
-): LuaBlock[] => {
-  if (slot === 'root' || !parentId) {
-    return [...blocks, newBlock]
-  }
-
-  return blocks.map((block) => {
-    if (block.id === parentId) {
-      const current = slot === 'children' ? block.children ?? [] : block.elseChildren ?? []
-      const updated = [...current, newBlock]
-      if (slot === 'children') {
-        return { ...block, children: updated }
-      }
-      return { ...block, elseChildren: updated }
-    }
-
-    const children = block.children ? addBlockToTree(block.children, parentId, slot, newBlock) : block.children
-    const elseChildren = block.elseChildren
-      ? addBlockToTree(block.elseChildren, parentId, slot, newBlock)
-      : block.elseChildren
-
-    if (children !== block.children || elseChildren !== block.elseChildren) {
-      return { ...block, children, elseChildren }
-    }
-
-    return block
-  })
-}
-
-const updateBlockInTree = (
-  blocks: LuaBlock[],
-  blockId: string,
-  updater: (block: LuaBlock) => LuaBlock
-): LuaBlock[] =>
-  blocks.map((block) => {
-    if (block.id === blockId) {
-      return updater(block)
-    }
-
-    const children = block.children ? updateBlockInTree(block.children, blockId, updater) : block.children
-    const elseChildren = block.elseChildren
-      ? updateBlockInTree(block.elseChildren, blockId, updater)
-      : block.elseChildren
-
-    if (children !== block.children || elseChildren !== block.elseChildren) {
-      return { ...block, children, elseChildren }
-    }
-
-    return block
-  })
-
-const removeBlockFromTree = (blocks: LuaBlock[], blockId: string): LuaBlock[] =>
-  blocks
-    .filter((block) => block.id !== blockId)
-    .map((block) => {
-      const children = block.children ? removeBlockFromTree(block.children, blockId) : block.children
-      const elseChildren = block.elseChildren
-        ? removeBlockFromTree(block.elseChildren, blockId)
-        : block.elseChildren
-
-      if (children !== block.children || elseChildren !== block.elseChildren) {
-        return { ...block, children, elseChildren }
-      }
-
-      return block
-    })
-
-const moveBlockInTree = (blocks: LuaBlock[], blockId: string, direction: 'up' | 'down'): LuaBlock[] => {
-  const index = blocks.findIndex((block) => block.id === blockId)
-  if (index !== -1) {
-    const targetIndex = direction === 'up' ? index - 1 : index + 1
-    if (targetIndex < 0 || targetIndex >= blocks.length) return blocks
-
-    const updated = [...blocks]
-    const [moved] = updated.splice(index, 1)
-    updated.splice(targetIndex, 0, moved)
-    return updated
-  }
-
-  return blocks.map((block) => {
-    const children = block.children ? moveBlockInTree(block.children, blockId, direction) : block.children
-    const elseChildren = block.elseChildren
-      ? moveBlockInTree(block.elseChildren, blockId, direction)
-      : block.elseChildren
-
-    if (children !== block.children || elseChildren !== block.elseChildren) {
-      return { ...block, children, elseChildren }
-    }
-
-    return block
-  })
-}
-
 export function useLuaBlocksState({
   scripts,
   onScriptsChange,
@@ -156,178 +55,35 @@ export function useLuaBlocksState({
     }))
   }, [blocksByScript, decodeBlocksMetadata, scripts, selectedScriptId])
 
-  const selectedScript = scripts.find((script) => script.id === selectedScriptId) || null
-  const activeBlocks = selectedScriptId ? blocksByScript[selectedScriptId] || [] : []
+  const selectedScript = selectSelectedScript(scripts, selectedScriptId)
+  const activeBlocks = selectActiveBlocks(blocksByScript, selectedScriptId)
   const generatedCode = useMemo(() => buildLuaFromBlocks(activeBlocks), [activeBlocks, buildLuaFromBlocks])
 
-  const handleAddScript = () => {
-    const starterBlocks = [createBlock('log')]
-    const newScript: LuaScript = {
-      id: `lua_${Date.now()}`,
-      name: 'Block Script',
-      description: 'Built with Lua blocks',
-      code: buildLuaFromBlocks(starterBlocks),
-      parameters: [],
-    }
-
-    onScriptsChange([...scripts, newScript])
-    setBlocksByScript((prev) => ({ ...prev, [newScript.id]: starterBlocks }))
-    setSelectedScriptId(newScript.id)
-    toast.success('Block script created')
-  }
-
-  const handleDeleteScript = (scriptId: string) => {
-    const remaining = scripts.filter((script) => script.id !== scriptId)
-    onScriptsChange(remaining)
-
-    setBlocksByScript((prev) => {
-      const { [scriptId]: _, ...rest } = prev
-      return rest
-    })
-
-    if (selectedScriptId === scriptId) {
-      setSelectedScriptId(remaining.length > 0 ? remaining[0].id : null)
-    }
-
-    toast.success('Script deleted')
-  }
-
-  const handleUpdateScript = (updates: Partial<LuaScript>) => {
-    if (!selectedScript) return
-    onScriptsChange(
-      scripts.map((script) => (script.id === selectedScript.id ? { ...script, ...updates } : script))
-    )
-  }
-
-  const handleApplyCode = () => {
-    if (!selectedScript) return
-    handleUpdateScript({ code: generatedCode })
-    toast.success('Lua code updated from blocks')
-  }
-
-  const handleCopyCode = async () => {
-    try {
-      await navigator.clipboard.writeText(generatedCode)
-      toast.success('Lua code copied to clipboard')
-    } catch (error) {
-      toast.error('Unable to copy code')
-    }
-  }
-
-  const handleReloadFromCode = () => {
-    if (!selectedScript) return
-    const parsed = decodeBlocksMetadata(selectedScript.code)
-    if (!parsed) {
-      toast.warning('No block metadata found in this script')
-      return
-    }
-    setBlocksByScript((prev) => ({ ...prev, [selectedScript.id]: parsed }))
-    toast.success('Blocks loaded from script')
-  }
-
-  const handleRequestAddBlock = (
-    event: MouseEvent<HTMLElement>,
-    target: { parentId: string | null; slot: BlockSlot }
-  ) => {
-    setMenuAnchor(event.currentTarget)
-    setMenuTarget(target)
-  }
-
-  const handleAddBlock = (type: LuaBlockType, target?: { parentId: string | null; slot: BlockSlot }) => {
-    const resolvedTarget = target ?? menuTarget
-    if (!selectedScriptId || !resolvedTarget) return
-
-    const newBlock = createBlock(type)
-    setBlocksByScript((prev) => ({
-      ...prev,
-      [selectedScriptId]: addBlockToTree(
-        prev[selectedScriptId] || [],
-        resolvedTarget.parentId,
-        resolvedTarget.slot,
-        newBlock
-      ),
-    }))
-
-    setMenuAnchor(null)
-    setMenuTarget(null)
-  }
-
-  const handleCloseMenu = () => {
-    setMenuAnchor(null)
-    setMenuTarget(null)
-  }
-
-  const handleUpdateField = (blockId: string, fieldName: string, value: string) => {
-    if (!selectedScriptId) return
-    setBlocksByScript((prev) => ({
-      ...prev,
-      [selectedScriptId]: updateBlockInTree(prev[selectedScriptId] || [], blockId, (block) => ({
-        ...block,
-        fields: {
-          ...block.fields,
-          [fieldName]: value,
-        },
-      })),
-    }))
-  }
-
-  const handleRemoveBlock = (blockId: string) => {
-    if (!selectedScriptId) return
-    setBlocksByScript((prev) => ({
-      ...prev,
-      [selectedScriptId]: removeBlockFromTree(prev[selectedScriptId] || [], blockId),
-    }))
-  }
-
-  const handleDuplicateBlock = (blockId: string) => {
-    if (!selectedScriptId) return
-
-    setBlocksByScript((prev) => {
-      const blocks = prev[selectedScriptId] || []
-      let duplicated: LuaBlock | null = null
-
-      const updated = updateBlockInTree(blocks, blockId, (block) => {
-        duplicated = cloneBlock(block)
-        return block
-      })
-
-      if (!duplicated) return prev
-
-      return {
-        ...prev,
-        [selectedScriptId]: addBlockToTree(updated, null, 'root', duplicated),
-      }
-    })
-  }
-
-  const handleMoveBlock = (blockId: string, direction: 'up' | 'down') => {
-    if (!selectedScriptId) return
-    setBlocksByScript((prev) => ({
-      ...prev,
-      [selectedScriptId]: moveBlockInTree(prev[selectedScriptId] || [], blockId, direction),
-    }))
-  }
+  const actions = createLuaBlocksActions({
+    scripts,
+    selectedScript,
+    selectedScriptId,
+    generatedCode,
+    menuTarget,
+    buildLuaFromBlocks,
+    createBlock,
+    cloneBlock,
+    decodeBlocksMetadata,
+    onScriptsChange,
+    setBlocksByScript,
+    setMenuAnchor,
+    setMenuTarget,
+    setSelectedScriptId,
+  })
 
   return {
     activeBlocks,
     generatedCode,
-    handleAddBlock,
-    handleAddScript,
-    handleApplyCode,
-    handleCloseMenu,
-    handleCopyCode,
-    handleDeleteScript,
-    handleDuplicateBlock,
-    handleMoveBlock,
-    handleReloadFromCode,
-    handleRemoveBlock,
-    handleRequestAddBlock,
-    handleUpdateField,
-    handleUpdateScript,
     menuAnchor,
     menuTarget,
     selectedScript,
     selectedScriptId,
     setSelectedScriptId,
+    ...actions,
   }
 }

frontends/nextjs/src/components/editors/lua/hooks/useLuaBlocksState/actions.ts

@@ -0,0 +1,208 @@
+import type { Dispatch, MouseEvent, SetStateAction } from 'react'
+import { toast } from 'sonner'
+import type { LuaScript } from '@/lib/level-types'
+import type { BlockSlot, LuaBlock, LuaBlockType } from '../../types'
+import { addBlockToTree, moveBlockInTree, removeBlockFromTree, updateBlockInTree } from './storage'
+
+export interface MenuTarget {
+  parentId: string | null
+  slot: BlockSlot
+}
+
+interface LuaBlocksActionConfig {
+  scripts: LuaScript[]
+  selectedScript: LuaScript | null
+  selectedScriptId: string | null
+  generatedCode: string
+  menuTarget: MenuTarget | null
+  buildLuaFromBlocks: (blocks: LuaBlock[]) => string
+  createBlock: (type: LuaBlockType) => LuaBlock
+  cloneBlock: (block: LuaBlock) => LuaBlock
+  decodeBlocksMetadata: (code: string) => LuaBlock[] | null
+  onScriptsChange: (scripts: LuaScript[]) => void
+  setBlocksByScript: Dispatch<SetStateAction<Record<string, LuaBlock[]>>>
+  setMenuAnchor: Dispatch<SetStateAction<HTMLElement | null>>
+  setMenuTarget: Dispatch<SetStateAction<MenuTarget | null>>
+  setSelectedScriptId: Dispatch<SetStateAction<string | null>>
+}
+
+export const createLuaBlocksActions = ({
+  scripts,
+  selectedScript,
+  selectedScriptId,
+  generatedCode,
+  menuTarget,
+  buildLuaFromBlocks,
+  createBlock,
+  cloneBlock,
+  decodeBlocksMetadata,
+  onScriptsChange,
+  setBlocksByScript,
+  setMenuAnchor,
+  setMenuTarget,
+  setSelectedScriptId,
+}: LuaBlocksActionConfig) => {
+  const handleAddScript = () => {
+    const starterBlocks = [createBlock('log')]
+    const newScript: LuaScript = {
+      id: `lua_${Date.now()}`,
+      name: 'Block Script',
+      description: 'Built with Lua blocks',
+      code: buildLuaFromBlocks(starterBlocks),
+      parameters: [],
+    }
+
+    onScriptsChange([...scripts, newScript])
+    setBlocksByScript((prev) => ({ ...prev, [newScript.id]: starterBlocks }))
+    setSelectedScriptId(newScript.id)
+    toast.success('Block script created')
+  }
+
+  const handleDeleteScript = (scriptId: string) => {
+    const remaining = scripts.filter((script) => script.id !== scriptId)
+    onScriptsChange(remaining)
+
+    setBlocksByScript((prev) => {
+      const { [scriptId]: _, ...rest } = prev
+      return rest
+    })
+
+    if (selectedScriptId === scriptId) {
+      setSelectedScriptId(remaining.length > 0 ? remaining[0].id : null)
+    }
+
+    toast.success('Script deleted')
+  }
+
+  const handleUpdateScript = (updates: Partial<LuaScript>) => {
+    if (!selectedScript) return
+    onScriptsChange(
+      scripts.map((script) => (script.id === selectedScript.id ? { ...script, ...updates } : script))
+    )
+  }
+
+  const handleApplyCode = () => {
+    if (!selectedScript) return
+    handleUpdateScript({ code: generatedCode })
+    toast.success('Lua code updated from blocks')
+  }
+
+  const handleCopyCode = async () => {
+    try {
+      await navigator.clipboard.writeText(generatedCode)
+      toast.success('Lua code copied to clipboard')
+    } catch (error) {
+      toast.error('Unable to copy code')
+    }
+  }
+
+  const handleReloadFromCode = () => {
+    if (!selectedScript) return
+    const parsed = decodeBlocksMetadata(selectedScript.code)
+    if (!parsed) {
+      toast.warning('No block metadata found in this script')
+      return
+    }
+    setBlocksByScript((prev) => ({ ...prev, [selectedScript.id]: parsed }))
+    toast.success('Blocks loaded from script')
+  }
+
+  const handleRequestAddBlock = (
+    event: MouseEvent<HTMLElement>,
+    target: { parentId: string | null; slot: BlockSlot }
+  ) => {
+    setMenuAnchor(event.currentTarget)
+    setMenuTarget(target)
+  }
+
+  const handleAddBlock = (type: LuaBlockType, target?: MenuTarget) => {
+    const resolvedTarget = target ?? menuTarget
+    if (!selectedScriptId || !resolvedTarget) return
+
+    const newBlock = createBlock(type)
+    setBlocksByScript((prev) => ({
+      ...prev,
+      [selectedScriptId]: addBlockToTree(
+        prev[selectedScriptId] || [],
+        resolvedTarget.parentId,
+        resolvedTarget.slot,
+        newBlock
+      ),
+    }))
+
+    setMenuAnchor(null)
+    setMenuTarget(null)
+  }
+
+  const handleCloseMenu = () => {
+    setMenuAnchor(null)
+    setMenuTarget(null)
+  }
+
+  const handleUpdateField = (blockId: string, fieldName: string, value: string) => {
+    if (!selectedScriptId) return
+    setBlocksByScript((prev) => ({
+      ...prev,
+      [selectedScriptId]: updateBlockInTree(prev[selectedScriptId] || [], blockId, (block) => ({
+        ...block,
+        fields: {
+          ...block.fields,
+          [fieldName]: value,
+        },
+      })),
+    }))
+  }
+
+  const handleRemoveBlock = (blockId: string) => {
+    if (!selectedScriptId) return
+    setBlocksByScript((prev) => ({
+      ...prev,
+      [selectedScriptId]: removeBlockFromTree(prev[selectedScriptId] || [], blockId),
+    }))
+  }
+
+  const handleDuplicateBlock = (blockId: string) => {
+    if (!selectedScriptId) return
+
+    setBlocksByScript((prev) => {
+      const blocks = prev[selectedScriptId] || []
+      let duplicated: LuaBlock | null = null
+
+      const updated = updateBlockInTree(blocks, blockId, (block) => {
+        duplicated = cloneBlock(block)
+        return block
+      })
+
+      if (!duplicated) return prev
+
+      return {
+        ...prev,
+        [selectedScriptId]: addBlockToTree(updated, null, 'root', duplicated),
+      }
+    })
+  }
+
+  const handleMoveBlock = (blockId: string, direction: 'up' | 'down') => {
+    if (!selectedScriptId) return
+    setBlocksByScript((prev) => ({
+      ...prev,
+      [selectedScriptId]: moveBlockInTree(prev[selectedScriptId] || [], blockId, direction),
+    }))
+  }
+
+  return {
+    handleAddBlock,
+    handleAddScript,
+    handleApplyCode,
+    handleCloseMenu,
+    handleCopyCode,
+    handleDeleteScript,
+    handleDuplicateBlock,
+    handleMoveBlock,
+    handleReloadFromCode,
+    handleRemoveBlock,
+    handleRequestAddBlock,
+    handleUpdateField,
+    handleUpdateScript,
+  }
+}

frontends/nextjs/src/components/editors/lua/hooks/useLuaBlocksState/selectors.ts

@@ -0,0 +1,12 @@
+import type { LuaScript } from '@/lib/level-types'
+import type { LuaBlock } from '../../types'
+
+export const selectSelectedScript = (
+  scripts: LuaScript[],
+  selectedScriptId: string | null
+): LuaScript | null => scripts.find((script) => script.id === selectedScriptId) || null
+
+export const selectActiveBlocks = (
+  blocksByScript: Record<string, LuaBlock[]>,
+  selectedScriptId: string | null
+): LuaBlock[] => (selectedScriptId ? blocksByScript[selectedScriptId] || [] : [])

frontends/nextjs/src/components/editors/lua/hooks/useLuaBlocksState/storage.ts

@@ -0,0 +1,98 @@
+import type { BlockSlot, LuaBlock } from '../../types'
+
+export const addBlockToTree = (
+  blocks: LuaBlock[],
+  parentId: string | null,
+  slot: BlockSlot,
+  newBlock: LuaBlock
+): LuaBlock[] => {
+  if (slot === 'root' || !parentId) {
+    return [...blocks, newBlock]
+  }
+
+  return blocks.map((block) => {
+    if (block.id === parentId) {
+      const current = slot === 'children' ? block.children ?? [] : block.elseChildren ?? []
+      const updated = [...current, newBlock]
+      if (slot === 'children') {
+        return { ...block, children: updated }
+      }
+      return { ...block, elseChildren: updated }
+    }
+
+    const children = block.children ? addBlockToTree(block.children, parentId, slot, newBlock) : block.children
+    const elseChildren = block.elseChildren
+      ? addBlockToTree(block.elseChildren, parentId, slot, newBlock)
+      : block.elseChildren
+
+    if (children !== block.children || elseChildren !== block.elseChildren) {
+      return { ...block, children, elseChildren }
+    }
+
+    return block
+  })
+}
+
+export const updateBlockInTree = (
+  blocks: LuaBlock[],
+  blockId: string,
+  updater: (block: LuaBlock) => LuaBlock
+): LuaBlock[] =>
+  blocks.map((block) => {
+    if (block.id === blockId) {
+      return updater(block)
+    }
+
+    const children = block.children ? updateBlockInTree(block.children, blockId, updater) : block.children
+    const elseChildren = block.elseChildren
+      ? updateBlockInTree(block.elseChildren, blockId, updater)
+      : block.elseChildren
+
+    if (children !== block.children || elseChildren !== block.elseChildren) {
+      return { ...block, children, elseChildren }
+    }
+
+    return block
+  })
+
+export const removeBlockFromTree = (blocks: LuaBlock[], blockId: string): LuaBlock[] =>
+  blocks
+    .filter((block) => block.id !== blockId)
+    .map((block) => {
+      const children = block.children ? removeBlockFromTree(block.children, blockId) : block.children
+      const elseChildren = block.elseChildren
+        ? removeBlockFromTree(block.elseChildren, blockId)
+        : block.elseChildren
+
+      if (children !== block.children || elseChildren !== block.elseChildren) {
+        return { ...block, children, elseChildren }
+      }
+
+      return block
+    })
+
+export const moveBlockInTree = (blocks: LuaBlock[], blockId: string, direction: 'up' | 'down'): LuaBlock[] => {
+  const index = blocks.findIndex((block) => block.id === blockId)
+  if (index !== -1) {
+    const targetIndex = direction === 'up' ? index - 1 : index + 1
+    if (targetIndex < 0 || targetIndex >= blocks.length) return blocks
+
+    const updated = [...blocks]
+    const [moved] = updated.splice(index, 1)
+    updated.splice(targetIndex, 0, moved)
+    return updated
+  }
+
+  return blocks.map((block) => {
+    const children = block.children ? moveBlockInTree(block.children, blockId, direction) : block.children
+    const elseChildren = block.elseChildren
+      ? moveBlockInTree(block.elseChildren, blockId, direction)
+      : block.elseChildren
+
+    if (children !== block.children || elseChildren !== block.elseChildren) {
+      return { ...block, children, elseChildren }
+    }
+
+    return block
+  })
+}

frontends/nextjs/src/components/editors/schema/SchemaEditorLevel4.tsx

@@ -1,19 +1,9 @@
-import { useState } from 'react'
 import { Button } from '@/components/ui'
 import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui'
-import { Input } from '@/components/ui'
-import { Label } from '@/components/ui'
-import {
-  Select,
-  SelectContent,
-  SelectItem,
-  SelectTrigger,
-  SelectValue,
-} from '@/components/ui'
-import { Switch } from '@/components/ui'
+import { SchemaTabs } from '@/components/schema/level4/Tabs'
+import { useSchemaLevel4 } from '@/components/schema/level4/useSchemaLevel4'
+import type { ModelSchema } from '@/lib/schema-types'
 import { Plus, Trash } from '@phosphor-icons/react'
-import { toast } from 'sonner'
-import type { ModelSchema, FieldSchema, FieldType } from '@/lib/schema-types'
 
 interface SchemaEditorLevel4Props {
   schemas: ModelSchema[]
@@ -21,74 +11,17 @@ interface SchemaEditorLevel4Props {
 }
 
 export function SchemaEditorLevel4({ schemas, onSchemasChange }: SchemaEditorLevel4Props) {
-  const [selectedModel, setSelectedModel] = useState<string | null>(
-    schemas.length > 0 ? schemas[0].name : null
-  )
-
-  const currentModel = schemas.find(s => s.name === selectedModel)
-
-  const handleAddModel = () => {
-    const newModel: ModelSchema = {
-      name: `Model_${Date.now()}`,
-      label: 'New Model',
-      fields: [],
-    }
-    onSchemasChange([...schemas, newModel])
-    setSelectedModel(newModel.name)
-    toast.success('Model created')
-  }
-
-  const handleDeleteModel = (modelName: string) => {
-    onSchemasChange(schemas.filter(s => s.name !== modelName))
-    if (selectedModel === modelName) {
-      setSelectedModel(schemas.length > 1 ? schemas[0].name : null)
-    }
-    toast.success('Model deleted')
-  }
-
-  const handleUpdateModel = (updates: Partial<ModelSchema>) => {
-    if (!currentModel) return
-    
-    onSchemasChange(
-      schemas.map(s => s.name === selectedModel ? { ...s, ...updates } : s)
-    )
-  }
-
-  const handleAddField = () => {
-    if (!currentModel) return
-
-    const newField: FieldSchema = {
-      name: `field_${Date.now()}`,
-      type: 'string',
-      label: 'New Field',
-      required: false,
-      editable: true,
-    }
-
-    handleUpdateModel({
-      fields: [...currentModel.fields, newField],
-    })
-    toast.success('Field added')
-  }
-
-  const handleDeleteField = (fieldName: string) => {
-    if (!currentModel) return
-
-    handleUpdateModel({
-      fields: currentModel.fields.filter(f => f.name !== fieldName),
-    })
-    toast.success('Field deleted')
-  }
-
-  const handleUpdateField = (fieldName: string, updates: Partial<FieldSchema>) => {
-    if (!currentModel) return
-
-    handleUpdateModel({
-      fields: currentModel.fields.map(f =>
-        f.name === fieldName ? { ...f, ...updates } : f
-      ),
-    })
-  }
+  const {
+    currentModel,
+    selectedModel,
+    selectModel,
+    handleAddField,
+    handleAddModel,
+    handleDeleteField,
+    handleDeleteModel,
+    handleUpdateField,
+    handleUpdateModel,
+  } = useSchemaLevel4({ schemas, onSchemasChange })
 
   return (
     <div className="grid md:grid-cols-3 gap-6 h-full">
@@ -117,7 +50,7 @@ export function SchemaEditorLevel4({ schemas, onSchemasChange }: SchemaEditorLev
                       ? 'bg-accent border-accent-foreground'
                       : 'hover:bg-muted border-border'
                   }`}
-                  onClick={() => setSelectedModel(schema.name)}
+                  onClick={() => selectModel(schema.name)}
                 >
                   <div>
                     <div className="font-medium text-sm">{schema.label || schema.name}</div>
@@ -150,179 +83,13 @@ export function SchemaEditorLevel4({ schemas, onSchemasChange }: SchemaEditorLev
             </div>
           </CardContent>
         ) : (
-          <>
-            <CardHeader>
-              <CardTitle>Edit Model: {currentModel.label}</CardTitle>
-              <CardDescription>Configure model properties and fields</CardDescription>
-            </CardHeader>
-            <CardContent className="space-y-6">
-              <div className="grid gap-4 md:grid-cols-2">
-                <div className="space-y-2">
-                  <Label>Model Name (ID)</Label>
-                  <Input
-                    value={currentModel.name}
-                    onChange={(e) => handleUpdateModel({ name: e.target.value })}
-                    placeholder="user_model"
-                  />
-                </div>
-                <div className="space-y-2">
-                  <Label>Display Label</Label>
-                  <Input
-                    value={currentModel.label || ''}
-                    onChange={(e) => handleUpdateModel({ label: e.target.value })}
-                    placeholder="User"
-                  />
-                </div>
-                <div className="space-y-2">
-                  <Label>Plural Label</Label>
-                  <Input
-                    value={currentModel.labelPlural || ''}
-                    onChange={(e) => handleUpdateModel({ labelPlural: e.target.value })}
-                    placeholder="Users"
-                  />
-                </div>
-                <div className="space-y-2">
-                  <Label>Icon Name</Label>
-                  <Input
-                    value={currentModel.icon || ''}
-                    onChange={(e) => handleUpdateModel({ icon: e.target.value })}
-                    placeholder="Users"
-                  />
-                </div>
-              </div>
-
-              <div>
-                <div className="flex items-center justify-between mb-4">
-                  <Label className="text-base">Fields</Label>
-                  <Button size="sm" onClick={handleAddField}>
-                    <Plus className="mr-2" size={16} />
-                    Add Field
-                  </Button>
-                </div>
-
-                <div className="space-y-4">
-                  {currentModel.fields.length === 0 ? (
-                    <p className="text-sm text-muted-foreground text-center py-8 border border-dashed rounded-lg">
-                      No fields yet. Add a field to start.
-                    </p>
-                  ) : (
-                    currentModel.fields.map((field) => (
-                      <Card key={field.name} className="border-2">
-                        <CardContent className="pt-6 space-y-4">
-                          <div className="flex items-start justify-between gap-4">
-                            <div className="grid gap-4 md:grid-cols-2 flex-1">
-                              <div className="space-y-2">
-                                <Label className="text-xs">Field Name</Label>
-                                <Input
-                                  value={field.name}
-                                  onChange={(e) =>
-                                    handleUpdateField(field.name, { name: e.target.value })
-                                  }
-                                  placeholder="email"
-                                />
-                              </div>
-                              <div className="space-y-2">
-                                <Label className="text-xs">Label</Label>
-                                <Input
-                                  value={field.label || ''}
-                                  onChange={(e) =>
-                                    handleUpdateField(field.name, { label: e.target.value })
-                                  }
-                                  placeholder="Email Address"
-                                />
-                              </div>
-                              <div className="space-y-2">
-                                <Label className="text-xs">Type</Label>
-                                <Select
-                                  value={field.type}
-                                  onValueChange={(value) =>
-                                    handleUpdateField(field.name, { type: value as FieldType })
-                                  }
-                                >
-                                  <SelectTrigger>
-                                    <SelectValue />
-                                  </SelectTrigger>
-                                  <SelectContent>
-                                    <SelectItem value="string">String</SelectItem>
-                                    <SelectItem value="text">Text</SelectItem>
-                                    <SelectItem value="number">Number</SelectItem>
-                                    <SelectItem value="boolean">Boolean</SelectItem>
-                                    <SelectItem value="date">Date</SelectItem>
-                                    <SelectItem value="datetime">DateTime</SelectItem>
-                                    <SelectItem value="email">Email</SelectItem>
-                                    <SelectItem value="url">URL</SelectItem>
-                                    <SelectItem value="select">Select</SelectItem>
-                                    <SelectItem value="relation">Relation</SelectItem>
-                                    <SelectItem value="json">JSON</SelectItem>
-                                  </SelectContent>
-                                </Select>
-                              </div>
-                              <div className="space-y-2">
-                                <Label className="text-xs">Default Value</Label>
-                                <Input
-                                  value={field.default || ''}
-                                  onChange={(e) =>
-                                    handleUpdateField(field.name, { default: e.target.value })
-                                  }
-                                  placeholder="Default"
-                                />
-                              </div>
-                            </div>
-                            <Button
-                              variant="ghost"
-                              size="sm"
-                              onClick={() => handleDeleteField(field.name)}
-                            >
-                              <Trash size={16} />
-                            </Button>
-                          </div>
-
-                          <div className="flex gap-6">
-                            <div className="flex items-center gap-2">
-                              <Switch
-                                checked={field.required || false}
-                                onCheckedChange={(checked) =>
-                                  handleUpdateField(field.name, { required: checked })
-                                }
-                              />
-                              <Label className="text-xs">Required</Label>
-                            </div>
-                            <div className="flex items-center gap-2">
-                              <Switch
-                                checked={field.unique || false}
-                                onCheckedChange={(checked) =>
-                                  handleUpdateField(field.name, { unique: checked })
-                                }
-                              />
-                              <Label className="text-xs">Unique</Label>
-                            </div>
-                            <div className="flex items-center gap-2">
-                              <Switch
-                                checked={field.editable !== false}
-                                onCheckedChange={(checked) =>
-                                  handleUpdateField(field.name, { editable: checked })
-                                }
-                              />
-                              <Label className="text-xs">Editable</Label>
-                            </div>
-                            <div className="flex items-center gap-2">
-                              <Switch
-                                checked={field.searchable || false}
-                                onCheckedChange={(checked) =>
-                                  handleUpdateField(field.name, { searchable: checked })
-                                }
-                              />
-                              <Label className="text-xs">Searchable</Label>
-                            </div>
-                          </div>
-                        </CardContent>
-                      </Card>
-                    ))
-                  )}
-                </div>
-              </div>
-            </CardContent>
-          </>
+          <SchemaTabs
+            currentModel={currentModel}
+            onUpdateModel={handleUpdateModel}
+            onAddField={handleAddField}
+            onDeleteField={handleDeleteField}
+            onUpdateField={handleUpdateField}
+          />
         )}
       </Card>
     </div>

frontends/nextjs/src/components/editors/theme/PaletteEditor.tsx

@@ -0,0 +1,86 @@
+import { Input, Label } from '@/components/ui'
+import { ThemeColors } from './types'
+
+const colorGroups = [
+  {
+    title: 'Base Colors',
+    colors: [
+      { key: 'background' as const, label: 'Background' },
+      { key: 'foreground' as const, label: 'Foreground' },
+      { key: 'card' as const, label: 'Card' },
+      { key: 'cardForeground' as const, label: 'Card Foreground' },
+    ],
+  },
+  {
+    title: 'Action Colors',
+    colors: [
+      { key: 'primary' as const, label: 'Primary' },
+      { key: 'primaryForeground' as const, label: 'Primary Foreground' },
+      { key: 'secondary' as const, label: 'Secondary' },
+      { key: 'secondaryForeground' as const, label: 'Secondary Foreground' },
+      { key: 'accent' as const, label: 'Accent' },
+      { key: 'accentForeground' as const, label: 'Accent Foreground' },
+      { key: 'destructive' as const, label: 'Destructive' },
+      { key: 'destructiveForeground' as const, label: 'Destructive Foreground' },
+    ],
+  },
+  {
+    title: 'Supporting Colors',
+    colors: [
+      { key: 'muted' as const, label: 'Muted' },
+      { key: 'mutedForeground' as const, label: 'Muted Foreground' },
+      { key: 'border' as const, label: 'Border' },
+      { key: 'input' as const, label: 'Input' },
+      { key: 'ring' as const, label: 'Ring' },
+    ],
+  },
+]
+
+interface PaletteEditorProps {
+  colors: ThemeColors
+  radius: string
+  onColorChange: (colorKey: keyof ThemeColors, value: string) => void
+  onRadiusChange: (value: string) => void
+}
+
+export function PaletteEditor({ colors, radius, onColorChange, onRadiusChange }: PaletteEditorProps) {
+  return (
+    <div className="space-y-6 mt-6">
+      <div className="space-y-4">
+        <div>
+          <Label htmlFor="radius">Border Radius</Label>
+          <Input
+            id="radius"
+            value={radius}
+            onChange={(e) => onRadiusChange(e.target.value)}
+            placeholder="e.g., 0.5rem"
+            className="mt-1.5"
+          />
+        </div>
+      </div>
+
+      {colorGroups.map((group) => (
+        <div key={group.title} className="space-y-4">
+          <h3 className="text-sm font-semibold text-foreground">{group.title}</h3>
+          <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+            {group.colors.map(({ key, label }) => (
+              <div key={key} className="space-y-1.5">
+                <Label htmlFor={key}>{label}</Label>
+                <div className="flex gap-2">
+                  <div className="w-10 h-10 rounded border border-border shrink-0" style={{ background: colors[key] }} />
+                  <Input
+                    id={key}
+                    value={colors[key]}
+                    onChange={(e) => onColorChange(key, e.target.value)}
+                    placeholder="oklch(...)"
+                    className="font-mono text-sm"
+                  />
+                </div>
+              </div>
+            ))}
+          </div>
+        </div>
+      ))}
+    </div>
+  )
+}

frontends/nextjs/src/components/editors/theme/PreviewPane.tsx

@@ -0,0 +1,33 @@
+import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui'
+import { Button } from '@/components/ui'
+
+export function PreviewPane() {
+  return (
+    <div className="mt-6 p-4 border border-border rounded-lg bg-muted/30">
+      <h4 className="text-sm font-semibold mb-3">Theme Preview</h4>
+      <div className="space-y-3">
+        <div className="flex gap-2">
+          <Button size="sm">Primary Button</Button>
+          <Button size="sm" variant="secondary">
+            Secondary
+          </Button>
+          <Button size="sm" variant="outline">
+            Outline
+          </Button>
+          <Button size="sm" variant="destructive">
+            Destructive
+          </Button>
+        </div>
+        <Card>
+          <CardHeader>
+            <CardTitle>Card Example</CardTitle>
+            <CardDescription>This is a card description</CardDescription>
+          </CardHeader>
+          <CardContent>
+            <p className="text-sm text-muted-foreground">Card content with muted text</p>
+          </CardContent>
+        </Card>
+      </div>
+    </div>
+  )
+}

frontends/nextjs/src/components/editors/theme/constants.ts

@@ -0,0 +1,41 @@
+import { ThemeColors } from './types'
+
+export const DEFAULT_LIGHT_THEME: ThemeColors = {
+  background: 'oklch(0.92 0.03 290)',
+  foreground: 'oklch(0.25 0.02 260)',
+  card: 'oklch(1 0 0)',
+  cardForeground: 'oklch(0.25 0.02 260)',
+  primary: 'oklch(0.55 0.18 290)',
+  primaryForeground: 'oklch(0.98 0 0)',
+  secondary: 'oklch(0.35 0.02 260)',
+  secondaryForeground: 'oklch(0.90 0.01 260)',
+  muted: 'oklch(0.95 0.02 290)',
+  mutedForeground: 'oklch(0.50 0.02 260)',
+  accent: 'oklch(0.70 0.17 195)',
+  accentForeground: 'oklch(0.2 0.02 260)',
+  destructive: 'oklch(0.55 0.22 25)',
+  destructiveForeground: 'oklch(0.98 0 0)',
+  border: 'oklch(0.85 0.02 290)',
+  input: 'oklch(0.85 0.02 290)',
+  ring: 'oklch(0.70 0.17 195)',
+}
+
+export const DEFAULT_DARK_THEME: ThemeColors = {
+  background: 'oklch(0.145 0 0)',
+  foreground: 'oklch(0.985 0 0)',
+  card: 'oklch(0.205 0 0)',
+  cardForeground: 'oklch(0.985 0 0)',
+  primary: 'oklch(0.922 0 0)',
+  primaryForeground: 'oklch(0.205 0 0)',
+  secondary: 'oklch(0.269 0 0)',
+  secondaryForeground: 'oklch(0.985 0 0)',
+  muted: 'oklch(0.269 0 0)',
+  mutedForeground: 'oklch(0.708 0 0)',
+  accent: 'oklch(0.269 0 0)',
+  accentForeground: 'oklch(0.985 0 0)',
+  destructive: 'oklch(0.704 0.191 22.216)',
+  destructiveForeground: 'oklch(0.98 0 0)',
+  border: 'oklch(1 0 0 / 10%)',
+  input: 'oklch(1 0 0 / 15%)',
+  ring: 'oklch(0.556 0 0)',
+}

frontends/nextjs/src/components/editors/theme/types.ts

@@ -0,0 +1,25 @@
+export interface ThemeColors {
+  background: string
+  foreground: string
+  card: string
+  cardForeground: string
+  primary: string
+  primaryForeground: string
+  secondary: string
+  secondaryForeground: string
+  muted: string
+  mutedForeground: string
+  accent: string
+  accentForeground: string
+  destructive: string
+  destructiveForeground: string
+  border: string
+  input: string
+  ring: string
+}
+
+export interface ThemeConfig {
+  light: ThemeColors
+  dark: ThemeColors
+  radius: string
+}

frontends/nextjs/src/components/level/levels/Level4.tsx

@@ -55,6 +55,7 @@ export function Level4({ user, onLogout, onNavigate, onPreview }: Level4Props) {
 
         <Level4Tabs
           appConfig={appConfig}
+          user={user}
           nerdMode={nerdMode}
           onSchemasChange={handleSchemasChange}
           onWorkflowsChange={handleWorkflowsChange}

frontends/nextjs/src/components/level/panels/ModeratorPanel.tsx

@@ -1,22 +1,13 @@
 "use client"
 
 import { useEffect, useMemo, useState } from 'react'
-import { Button } from '@/components/ui'
-import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui'
-import { Badge } from '@/components/ui'
-import {
-  Table,
-  TableBody,
-  TableCell,
-  TableHead,
-  TableHeader,
-  TableRow,
-} from '@/components/ui'
-import { Stack, Typography } from '@/components/ui'
 import { toast } from 'sonner'
+import { AppHeader } from '@/components/shared/AppHeader'
 import { Database } from '@/lib/database'
 import type { Comment, User } from '@/lib/level-types'
-import { AppHeader } from '@/components/shared/AppHeader'
+import { ModeratorActions } from './ModeratorPanel/Actions'
+import { ModeratorHeader } from './ModeratorPanel/Header'
+import { ModeratorLogList } from './ModeratorPanel/LogList'
 
 const FLAGGED_TERMS = ['spam', 'error', 'abuse', 'illegal', 'urgent', 'offensive']
 
@@ -70,8 +61,6 @@ export function ModeratorPanel({ user, onLogout, onNavigate }: ModeratorPanelPro
     toast.success('Flag resolved and archived from the queue')
   }
 
-  const highlightLabel = (term: string) => term.charAt(0).toUpperCase() + term.slice(1)
-
   return (
     <div className="min-h-screen bg-background">
       <AppHeader
@@ -85,116 +74,19 @@ export function ModeratorPanel({ user, onLogout, onNavigate }: ModeratorPanelPro
       />
 
       <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-8 space-y-6">
-        <div className="space-y-2">
-          <Typography variant="h4">Moderation queue</Typography>
-          <Typography color="text.secondary">
-            Keep the community healthy by resolving flags, reviewing reports, and guiding the tone.
-          </Typography>
-        </div>
-
-        <div className="grid gap-6 md:grid-cols-3">
-          <Card>
-            <CardHeader>
-              <CardTitle>Flagged content</CardTitle>
-              <CardDescription>Automated signal based on keywords</CardDescription>
-            </CardHeader>
-            <CardContent>
-              <Typography variant="h3">{flaggedComments.length}</Typography>
-              <Typography color="text.secondary" className="mt-2">
-                Pending items in the moderation queue
-              </Typography>
-            </CardContent>
-          </Card>
-
-          <Card>
-            <CardHeader>
-              <CardTitle>Resolved this session</CardTitle>
-            </CardHeader>
-            <CardContent>
-              <Typography variant="h3">{resolvedIds.length}</Typography>
-              <Typography color="text.secondary" className="mt-2">
-                Items you flagged as handled
-              </Typography>
-            </CardContent>
-          </Card>
-
-          <Card>
-            <CardHeader>
-              <CardTitle>Community signals</CardTitle>
-            </CardHeader>
-            <CardContent>
-              <Stack direction="row" spacing={1} flexWrap="wrap">
-                {FLAGGED_TERMS.map((term) => (
-                  <Badge key={term}>{highlightLabel(term)}</Badge>
-                ))}
-              </Stack>
-              <Typography color="text.secondary" className="mt-2">
-                Track the keywords that pulled items into the queue
-              </Typography>
-            </CardContent>
-          </Card>
-        </div>
-
-        <Card>
-          <CardHeader>
-            <div className="flex items-center justify-between gap-4">
-              <div>
-                <CardTitle>Flagged comments</CardTitle>
-                <CardDescription>A curated view of the comments that triggered a signal</CardDescription>
-              </div>
-              <Button variant="ghost" size="sm" onClick={() => onNavigate(2)}>
-                Go to user dashboard
-              </Button>
-            </div>
-          </CardHeader>
-          <CardContent>
-            {isLoading ? (
-              <Typography color="text.secondary">Loading flagged comments…</Typography>
-            ) : flaggedComments.length === 0 ? (
-              <Typography color="text.secondary">
-                No flagged comments at the moment. Enjoy the calm.
-              </Typography>
-            ) : (
-              <Table>
-                <TableHeader>
-                  <TableRow>
-                    <TableHead>User</TableHead>
-                    <TableHead>Comment</TableHead>
-                    <TableHead>Matched terms</TableHead>
-                    <TableHead className="text-right">Actions</TableHead>
-                  </TableRow>
-                </TableHeader>
-                <TableBody>
-                  {flaggedComments.map((comment) => {
-                    const matches = FLAGGED_TERMS.filter((term) =>
-                      comment.content.toLowerCase().includes(term)
-                    )
-                    return (
-                      <TableRow key={comment.id}>
-                        <TableCell className="font-mono text-sm">{comment.userId}</TableCell>
-                        <TableCell>{comment.content}</TableCell>
-                        <TableCell>
-                          <Stack direction="row" spacing={1} flexWrap="wrap">
-                            {matches.map((match) => (
-                              <Badge key={`${comment.id}-${match}`} variant="outline">
-                                {match}
-                              </Badge>
-                            ))}
-                          </Stack>
-                        </TableCell>
-                        <TableCell className="text-right">
-                          <Button size="sm" variant="ghost" onClick={() => handleResolve(comment.id)}>
-                            Mark safe
-                          </Button>
-                        </TableCell>
-                      </TableRow>
-                    )
-                  })}
-                </TableBody>
-              </Table>
-            )}
-          </CardContent>
-        </Card>
+        <ModeratorHeader />
+        <ModeratorActions
+          flaggedCount={flaggedComments.length}
+          resolvedCount={resolvedIds.length}
+          flaggedTerms={FLAGGED_TERMS}
+        />
+        <ModeratorLogList
+          flaggedComments={flaggedComments}
+          flaggedTerms={FLAGGED_TERMS}
+          isLoading={isLoading}
+          onNavigate={onNavigate}
+          onResolve={handleResolve}
+        />
       </div>
     </div>
   )

frontends/nextjs/src/components/level/panels/ModeratorPanel/Actions.tsx

@@ -0,0 +1,56 @@
+import { Badge, Card, CardContent, CardDescription, CardHeader, CardTitle, Stack, Typography } from '@/components/ui'
+
+interface ModeratorActionsProps {
+  flaggedCount: number
+  resolvedCount: number
+  flaggedTerms: string[]
+}
+
+export function ModeratorActions({ flaggedCount, resolvedCount, flaggedTerms }: ModeratorActionsProps) {
+  const highlightLabel = (term: string) => term.charAt(0).toUpperCase() + term.slice(1)
+
+  return (
+    <div className="grid gap-6 md:grid-cols-3">
+      <Card>
+        <CardHeader>
+          <CardTitle>Flagged content</CardTitle>
+          <CardDescription>Automated signal based on keywords</CardDescription>
+        </CardHeader>
+        <CardContent>
+          <Typography variant="h3">{flaggedCount}</Typography>
+          <Typography color="text.secondary" className="mt-2">
+            Pending items in the moderation queue
+          </Typography>
+        </CardContent>
+      </Card>
+
+      <Card>
+        <CardHeader>
+          <CardTitle>Resolved this session</CardTitle>
+        </CardHeader>
+        <CardContent>
+          <Typography variant="h3">{resolvedCount}</Typography>
+          <Typography color="text.secondary" className="mt-2">
+            Items you flagged as handled
+          </Typography>
+        </CardContent>
+      </Card>
+
+      <Card>
+        <CardHeader>
+          <CardTitle>Community signals</CardTitle>
+        </CardHeader>
+        <CardContent>
+          <Stack direction="row" spacing={1} flexWrap="wrap">
+            {flaggedTerms.map((term) => (
+              <Badge key={term}>{highlightLabel(term)}</Badge>
+            ))}
+          </Stack>
+          <Typography color="text.secondary" className="mt-2">
+            Track the keywords that pulled items into the queue
+          </Typography>
+        </CardContent>
+      </Card>
+    </div>
+  )
+}

frontends/nextjs/src/components/level/panels/ModeratorPanel/Header.tsx

@@ -0,0 +1,12 @@
+import { Typography } from '@/components/ui'
+
+export function ModeratorHeader() {
+  return (
+    <div className="space-y-2">
+      <Typography variant="h4">Moderation queue</Typography>
+      <Typography color="text.secondary">
+        Keep the community healthy by resolving flags, reviewing reports, and guiding the tone.
+      </Typography>
+    </div>
+  )
+}

frontends/nextjs/src/components/level/panels/ModeratorPanel/LogList.tsx

@@ -0,0 +1,83 @@
+import { Badge, Button, Card, CardContent, CardDescription, CardHeader, CardTitle, Stack } from '@/components/ui'
+import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow, Typography } from '@/components/ui'
+import type { Comment } from '@/lib/level-types'
+
+interface ModeratorLogListProps {
+  flaggedComments: Comment[]
+  flaggedTerms: string[]
+  isLoading: boolean
+  onNavigate: (level: number) => void
+  onResolve: (commentId: string) => void
+}
+
+export function ModeratorLogList({
+  flaggedComments,
+  flaggedTerms,
+  isLoading,
+  onNavigate,
+  onResolve,
+}: ModeratorLogListProps) {
+  return (
+    <Card>
+      <CardHeader>
+        <div className="flex items-center justify-between gap-4">
+          <div>
+            <CardTitle>Flagged comments</CardTitle>
+            <CardDescription>A curated view of the comments that triggered a signal</CardDescription>
+          </div>
+          <Button variant="ghost" size="sm" onClick={() => onNavigate(2)}>
+            Go to user dashboard
+          </Button>
+        </div>
+      </CardHeader>
+      <CardContent>
+        {isLoading ? (
+          <Typography color="text.secondary">Loading flagged comments…</Typography>
+        ) : flaggedComments.length === 0 ? (
+          <Typography color="text.secondary">
+            No flagged comments at the moment. Enjoy the calm.
+          </Typography>
+        ) : (
+          <Table>
+            <TableHeader>
+              <TableRow>
+                <TableHead>User</TableHead>
+                <TableHead>Comment</TableHead>
+                <TableHead>Matched terms</TableHead>
+                <TableHead className="text-right">Actions</TableHead>
+              </TableRow>
+            </TableHeader>
+            <TableBody>
+              {flaggedComments.map((comment) => {
+                const matches = flaggedTerms.filter((term) =>
+                  comment.content.toLowerCase().includes(term)
+                )
+
+                return (
+                  <TableRow key={comment.id}>
+                    <TableCell className="font-mono text-sm">{comment.userId}</TableCell>
+                    <TableCell>{comment.content}</TableCell>
+                    <TableCell>
+                      <Stack direction="row" spacing={1} flexWrap="wrap">
+                        {matches.map((match) => (
+                          <Badge key={`${comment.id}-${match}`} variant="outline">
+                            {match}
+                          </Badge>
+                        ))}
+                      </Stack>
+                    </TableCell>
+                    <TableCell className="text-right">
+                      <Button size="sm" variant="ghost" onClick={() => onResolve(comment.id)}>
+                        Mark safe
+                      </Button>
+                    </TableCell>
+                  </TableRow>
+                )
+              })}
+            </TableBody>
+          </Table>
+        )}
+      </CardContent>
+    </Card>
+  )
+}

frontends/nextjs/src/components/managers/DropdownConfigManager.tsx

@@ -1,26 +1,16 @@
-import { useState, useEffect } from 'react'
-import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogFooter } from '@/components/ui'
-import { Button } from '@/components/ui'
-import { Input } from '@/components/ui'
-import { Label } from '@/components/ui'
-import { ScrollArea } from '@/components/ui'
-import { Card } from '@/components/ui'
-import { Badge } from '@/components/ui'
-import { Separator } from '@/components/ui'
+import { useEffect, useState } from 'react'
+import { Button, Card } from '@/components/ui'
 import { Database } from '@/lib/database'
-import { Plus, X, FloppyDisk, Trash, Pencil } from '@phosphor-icons/react'
+import { Plus } from '@phosphor-icons/react'
 import { toast } from 'sonner'
 import type { DropdownConfig } from '@/lib/database'
+import { DropdownConfigForm } from './dropdown/DropdownConfigForm'
+import { PreviewPane } from './dropdown/PreviewPane'
 
 export function DropdownConfigManager() {
   const [dropdowns, setDropdowns] = useState<DropdownConfig[]>([])
   const [isEditing, setIsEditing] = useState(false)
   const [editingDropdown, setEditingDropdown] = useState<DropdownConfig | null>(null)
-  const [dropdownName, setDropdownName] = useState('')
-  const [dropdownLabel, setDropdownLabel] = useState('')
-  const [options, setOptions] = useState<Array<{ value: string; label: string }>>([])
-  const [newOptionValue, setNewOptionValue] = useState('')
-  const [newOptionLabel, setNewOptionLabel] = useState('')
 
   useEffect(() => {
     loadDropdowns()
@@ -31,63 +21,34 @@ export function DropdownConfigManager() {
     setDropdowns(configs)
   }
 
-  const startEdit = (dropdown?: DropdownConfig) => {
-    if (dropdown) {
-      setEditingDropdown(dropdown)
-      setDropdownName(dropdown.name)
-      setDropdownLabel(dropdown.label)
-      setOptions(dropdown.options)
-    } else {
-      setEditingDropdown(null)
-      setDropdownName('')
-      setDropdownLabel('')
-      setOptions([])
-    }
+  const openEditor = (dropdown?: DropdownConfig) => {
+    setEditingDropdown(dropdown ?? null)
     setIsEditing(true)
   }
 
-  const addOption = () => {
-    if (newOptionValue && newOptionLabel) {
-      setOptions(current => [...current, { value: newOptionValue, label: newOptionLabel }])
-      setNewOptionValue('')
-      setNewOptionLabel('')
-    }
-  }
-
-  const removeOption = (index: number) => {
-    setOptions(current => current.filter((_, i) => i !== index))
-  }
-
-  const handleSave = async () => {
-    if (!dropdownName || !dropdownLabel || options.length === 0) {
-      toast.error('Please fill all fields and add at least one option')
-      return
-    }
-
-    const newDropdown: DropdownConfig = {
-      id: editingDropdown?.id || `dropdown_${Date.now()}`,
-      name: dropdownName,
-      label: dropdownLabel,
-      options,
-    }
-
-    if (editingDropdown) {
-      await Database.updateDropdownConfig(newDropdown.id, newDropdown)
+  const handleSave = async (config: DropdownConfig, isEdit: boolean) => {
+    if (isEdit) {
+      await Database.updateDropdownConfig(config.id, config)
       toast.success('Dropdown updated successfully')
     } else {
-      await Database.addDropdownConfig(newDropdown)
+      await Database.addDropdownConfig(config)
       toast.success('Dropdown created successfully')
     }
 
     setIsEditing(false)
-    loadDropdowns()
+    await loadDropdowns()
   }
 
   const handleDelete = async (id: string) => {
-    if (confirm('Are you sure you want to delete this dropdown configuration?')) {
-      await Database.deleteDropdownConfig(id)
-      toast.success('Dropdown deleted')
-      loadDropdowns()
+    await Database.deleteDropdownConfig(id)
+    toast.success('Dropdown deleted')
+    await loadDropdowns()
+  }
+
+  const handleDialogChange = (open: boolean) => {
+    setIsEditing(open)
+    if (!open) {
+      setEditingDropdown(null)
     }
   }
 
@@ -98,7 +59,7 @@ export function DropdownConfigManager() {
           <h2 className="text-2xl font-bold">Dropdown Configurations</h2>
           <p className="text-sm text-muted-foreground">Manage dynamic dropdown options for properties</p>
         </div>
-        <Button onClick={() => startEdit()}>
+        <Button onClick={() => openEditor()}>
           <Plus className="mr-2" />
           Create Dropdown
         </Button>
@@ -106,30 +67,12 @@ export function DropdownConfigManager() {
 
       <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
         {dropdowns.map(dropdown => (
-          <Card key={dropdown.id} className="p-4 space-y-3">
-            <div className="flex items-start justify-between">
-              <div>
-                <h3 className="font-semibold">{dropdown.label}</h3>
-                <p className="text-xs text-muted-foreground font-mono">{dropdown.name}</p>
-              </div>
-              <div className="flex gap-1">
-                <Button size="sm" variant="ghost" onClick={() => startEdit(dropdown)}>
-                  <Pencil size={16} />
-                </Button>
-                <Button size="sm" variant="ghost" onClick={() => handleDelete(dropdown.id)}>
-                  <Trash size={16} />
-                </Button>
-              </div>
-            </div>
-            <Separator />
-            <div className="flex flex-wrap gap-1">
-              {dropdown.options.map((opt, i) => (
-                <Badge key={i} variant="secondary" className="text-xs">
-                  {opt.label}
-                </Badge>
-              ))}
-            </div>
-          </Card>
+          <PreviewPane
+            key={dropdown.id}
+            dropdown={dropdown}
+            onEdit={openEditor}
+            onDelete={handleDelete}
+          />
         ))}
       </div>
 
@@ -139,88 +82,12 @@ export function DropdownConfigManager() {
         </Card>
       )}
 
-      <Dialog open={isEditing} onOpenChange={setIsEditing}>
-        <DialogContent className="max-w-2xl">
-          <DialogHeader>
-            <DialogTitle>{editingDropdown ? 'Edit' : 'Create'} Dropdown Configuration</DialogTitle>
-          </DialogHeader>
-
-          <div className="space-y-4">
-            <div className="space-y-2">
-              <Label>Dropdown Name (ID)</Label>
-              <Input
-                placeholder="e.g., status_options"
-                value={dropdownName}
-                onChange={(e) => setDropdownName(e.target.value)}
-              />
-              <p className="text-xs text-muted-foreground">Unique identifier for this dropdown</p>
-            </div>
-
-            <div className="space-y-2">
-              <Label>Display Label</Label>
-              <Input
-                placeholder="e.g., Status"
-                value={dropdownLabel}
-                onChange={(e) => setDropdownLabel(e.target.value)}
-              />
-            </div>
-
-            <Separator />
-
-            <div className="space-y-2">
-              <Label>Options</Label>
-              <div className="flex gap-2">
-                <Input
-                  placeholder="Value"
-                  value={newOptionValue}
-                  onChange={(e) => setNewOptionValue(e.target.value)}
-                />
-                <Input
-                  placeholder="Label"
-                  value={newOptionLabel}
-                  onChange={(e) => setNewOptionLabel(e.target.value)}
-                />
-                <Button onClick={addOption} type="button">
-                  <Plus size={16} />
-                </Button>
-              </div>
-            </div>
-
-            {options.length > 0 && (
-              <ScrollArea className="h-[200px] border rounded-lg p-3">
-                <div className="space-y-2">
-                  {options.map((opt, i) => (
-                    <div key={i} className="flex items-center justify-between p-2 border rounded bg-muted/50">
-                      <div className="flex-1">
-                        <span className="font-mono text-sm">{opt.value}</span>
-                        <span className="mx-2 text-muted-foreground">→</span>
-                        <span className="text-sm">{opt.label}</span>
-                      </div>
-                      <Button
-                        size="sm"
-                        variant="ghost"
-                        onClick={() => removeOption(i)}
-                      >
-                        <X size={16} />
-                      </Button>
-                    </div>
-                  ))}
-                </div>
-              </ScrollArea>
-            )}
-          </div>
-
-          <DialogFooter>
-            <Button variant="outline" onClick={() => setIsEditing(false)}>
-              Cancel
-            </Button>
-            <Button onClick={handleSave}>
-              <FloppyDisk className="mr-2" />
-              Save
-            </Button>
-          </DialogFooter>
-        </DialogContent>
-      </Dialog>
+      <DropdownConfigForm
+        open={isEditing}
+        editingDropdown={editingDropdown}
+        onOpenChange={handleDialogChange}
+        onSave={handleSave}
+      />
     </div>
   )
 }

frontends/nextjs/src/components/managers/PageRoutesManager.tsx

@@ -1,29 +1,39 @@
-import { useState, useEffect } from 'react'
-import { Button } from '@/components/ui'
-import { Input } from '@/components/ui'
-import { Label } from '@/components/ui'
-import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui'
-import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@/components/ui'
-import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from '@/components/ui'
-import { Badge } from '@/components/ui'
-import { Dialog, DialogContent, DialogDescription, DialogFooter, DialogHeader, DialogTitle, DialogTrigger } from '@/components/ui'
-import { Plus, Pencil, Trash, Eye, LockKey } from '@phosphor-icons/react'
+import { useEffect, useState } from 'react'
+import {
+  Button,
+  Card,
+  CardContent,
+  CardDescription,
+  CardHeader,
+  CardTitle,
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogHeader,
+  DialogTitle,
+  DialogTrigger,
+} from '@/components/ui'
+import { Plus } from '@phosphor-icons/react'
 import { Database } from '@/lib/database'
+import type { PageConfig } from '@/lib/level-types'
 import { toast } from 'sonner'
-import type { PageConfig, UserRole, AppLevel } from '@/lib/level-types'
-import { Switch } from '@/components/ui'
+import { RoutesTable } from './page-routes/RoutesTable'
+import { Preview } from './page-routes/Preview'
+import { RouteEditor, RouteFormData } from './page-routes/RouteEditor'
+
+const defaultFormData: RouteFormData = {
+  path: '/',
+  title: '',
+  level: 1,
+  requiresAuth: false,
+  componentTree: [],
+}
 
 export function PageRoutesManager() {
   const [pages, setPages] = useState<PageConfig[]>([])
   const [isDialogOpen, setIsDialogOpen] = useState(false)
   const [editingPage, setEditingPage] = useState<PageConfig | null>(null)
-  const [formData, setFormData] = useState<Partial<PageConfig>>({
-    path: '/',
-    title: '',
-    level: 1,
-    requiresAuth: false,
-    componentTree: [],
-  })
+  const [formData, setFormData] = useState<RouteFormData>({ ...defaultFormData })
 
   useEffect(() => {
     loadPages()
@@ -40,13 +50,7 @@ export function PageRoutesManager() {
       setFormData(page)
     } else {
       setEditingPage(null)
-      setFormData({
-        path: '/',
-        title: '',
-        level: 1,
-        requiresAuth: false,
-        componentTree: [],
-      })
+      setFormData({ ...defaultFormData })
     }
     setIsDialogOpen(true)
   }
@@ -54,13 +58,7 @@ export function PageRoutesManager() {
   const handleCloseDialog = () => {
     setIsDialogOpen(false)
     setEditingPage(null)
-    setFormData({
-      path: '/',
-      title: '',
-      level: 1,
-      requiresAuth: false,
-      componentTree: [],
-    })
+    setFormData({ ...defaultFormData })
   }
 
   const handleSavePage = async () => {
@@ -98,18 +96,6 @@ export function PageRoutesManager() {
     }
   }
 
-  const getLevelBadgeColor = (level: AppLevel) => {
-    switch (level) {
-      case 1: return 'bg-blue-500'
-      case 2: return 'bg-green-500'
-      case 3: return 'bg-orange-500'
-      case 4: return 'bg-sky-500'
-      case 5: return 'bg-purple-500'
-      case 6: return 'bg-rose-500'
-      default: return 'bg-gray-500'
-    }
-  }
-
   return (
     <div className="space-y-6">
       <div className="flex justify-between items-center">
@@ -124,94 +110,23 @@ export function PageRoutesManager() {
               New Page Route
             </Button>
           </DialogTrigger>
-          <DialogContent className="max-w-2xl">
+          <DialogContent className="max-w-4xl">
             <DialogHeader>
               <DialogTitle>{editingPage ? 'Edit Page Route' : 'Create New Page Route'}</DialogTitle>
               <DialogDescription>
                 Configure the route path, access level, and authentication requirements
               </DialogDescription>
             </DialogHeader>
-            
-            <div className="space-y-4 py-4">
-              <div className="grid grid-cols-2 gap-4">
-                <div className="space-y-2">
-                  <Label htmlFor="path">Route Path *</Label>
-                  <Input
-                    id="path"
-                    placeholder="/home"
-                    value={formData.path || ''}
-                    onChange={(e) => setFormData({ ...formData, path: e.target.value })}
-                  />
-                </div>
-                <div className="space-y-2">
-                  <Label htmlFor="title">Page Title *</Label>
-                  <Input
-                    id="title"
-                    placeholder="Home Page"
-                    value={formData.title || ''}
-                    onChange={(e) => setFormData({ ...formData, title: e.target.value })}
-                  />
-                </div>
-              </div>
-
-              <div className="grid grid-cols-2 gap-4">
-                <div className="space-y-2">
-                  <Label htmlFor="level">Application Level</Label>
-                  <Select
-                    value={String(formData.level)}
-                    onValueChange={(value) => setFormData({ ...formData, level: Number(value) as AppLevel })}
-                  >
-                    <SelectTrigger>
-                      <SelectValue placeholder="Select level" />
-                    </SelectTrigger>
-                    <SelectContent>
-                      <SelectItem value="1">Level 1 - Public</SelectItem>
-                      <SelectItem value="2">Level 2 - User Area</SelectItem>
-                      <SelectItem value="3">Level 3 - Moderator Desk</SelectItem>
-                      <SelectItem value="4">Level 4 - Admin Panel</SelectItem>
-                      <SelectItem value="5">Level 5 - God Builder</SelectItem>
-                      <SelectItem value="6">Level 6 - Supergod Console</SelectItem>
-                    </SelectContent>
-                  </Select>
-                </div>
-
-                <div className="space-y-2">
-                  <Label htmlFor="requiredRole">Required Role (if auth)</Label>
-                  <Select
-                    value={formData.requiredRole || 'public'}
-                    onValueChange={(value) => setFormData({ ...formData, requiredRole: value as UserRole })}
-                  >
-                    <SelectTrigger>
-                      <SelectValue placeholder="Select role" />
-                    </SelectTrigger>
-                    <SelectContent>
-                      <SelectItem value="public">Public</SelectItem>
-                      <SelectItem value="user">User</SelectItem>
-                      <SelectItem value="moderator">Moderator</SelectItem>
-                      <SelectItem value="admin">Admin</SelectItem>
-                      <SelectItem value="god">God</SelectItem>
-                      <SelectItem value="supergod">Supergod</SelectItem>
-                    </SelectContent>
-                  </Select>
-                </div>
-              </div>
-
-              <div className="flex items-center space-x-2">
-                <Switch
-                  id="requiresAuth"
-                  checked={formData.requiresAuth}
-                  onCheckedChange={(checked) => setFormData({ ...formData, requiresAuth: checked })}
-                />
-                <Label htmlFor="requiresAuth" className="cursor-pointer">Requires Authentication</Label>
-              </div>
+            <div className="grid gap-6 md:grid-cols-2">
+              <RouteEditor
+                formData={formData}
+                onChange={setFormData}
+                onSave={handleSavePage}
+                onCancel={handleCloseDialog}
+                isEdit={Boolean(editingPage)}
+              />
+              <Preview formData={formData} />
             </div>
-
-            <DialogFooter>
-              <Button variant="outline" onClick={handleCloseDialog}>Cancel</Button>
-              <Button onClick={handleSavePage}>
-                {editingPage ? 'Update Page' : 'Create Page'}
-              </Button>
-            </DialogFooter>
           </DialogContent>
         </Dialog>
       </div>
@@ -222,67 +137,11 @@ export function PageRoutesManager() {
           <CardDescription>All page routes in your application</CardDescription>
         </CardHeader>
         <CardContent>
-          {pages.length === 0 ? (
-            <div className="text-center py-12 text-muted-foreground">
-              <p>No pages configured yet. Create your first page route!</p>
-            </div>
-          ) : (
-            <Table>
-              <TableHeader>
-                <TableRow>
-                  <TableHead>Path</TableHead>
-                  <TableHead>Title</TableHead>
-                  <TableHead>Level</TableHead>
-                  <TableHead>Auth</TableHead>
-                  <TableHead>Required Role</TableHead>
-                  <TableHead className="text-right">Actions</TableHead>
-                </TableRow>
-              </TableHeader>
-              <TableBody>
-                {pages.map((page) => (
-                  <TableRow key={page.id}>
-                    <TableCell className="font-mono text-sm">{page.path}</TableCell>
-                    <TableCell>{page.title}</TableCell>
-                    <TableCell>
-                      <Badge className={getLevelBadgeColor(page.level)}>
-                        Level {page.level}
-                      </Badge>
-                    </TableCell>
-                    <TableCell>
-                      {page.requiresAuth ? (
-                        <LockKey className="text-orange-500" weight="fill" />
-                      ) : (
-                        <Eye className="text-green-500" weight="fill" />
-                      )}
-                    </TableCell>
-                    <TableCell>
-                      <Badge variant="outline">
-                        {page.requiredRole || 'public'}
-                      </Badge>
-                    </TableCell>
-                    <TableCell className="text-right">
-                      <div className="flex justify-end gap-2">
-                        <Button
-                          size="sm"
-                          variant="ghost"
-                          onClick={() => handleOpenDialog(page)}
-                        >
-                          <Pencil />
-                        </Button>
-                        <Button
-                          size="sm"
-                          variant="ghost"
-                          onClick={() => handleDeletePage(page.id)}
-                        >
-                          <Trash />
-                        </Button>
-                      </div>
-                    </TableCell>
-                  </TableRow>
-                ))}
-              </TableBody>
-            </Table>
-          )}
+          <RoutesTable
+            pages={pages}
+            onEdit={handleOpenDialog}
+            onDelete={handleDeletePage}
+          />
         </CardContent>
       </Card>
     </div>

frontends/nextjs/src/components/managers/dropdown/DropdownConfigForm.tsx

@@ -0,0 +1,182 @@
+import { useEffect, useMemo, useState } from 'react'
+import { Badge, Button, Dialog, DialogContent, DialogFooter, DialogHeader, DialogTitle, Input, Label, ScrollArea, Separator } from '@/components/ui'
+import { FloppyDisk, Plus, X } from '@phosphor-icons/react'
+import { toast } from 'sonner'
+import type { DropdownConfig } from '@/lib/database'
+
+interface DropdownConfigFormProps {
+  open: boolean
+  editingDropdown: DropdownConfig | null
+  onOpenChange: (open: boolean) => void
+  onSave: (config: DropdownConfig, isEdit: boolean) => Promise<void> | void
+}
+
+const getDefaultOptions = (dropdown?: DropdownConfig | null) => dropdown?.options ?? []
+
+const buildDropdownConfig = (
+  dropdown: DropdownConfig | null,
+  name: string,
+  label: string,
+  options: Array<{ value: string; label: string }>
+): DropdownConfig => ({
+  id: dropdown?.id ?? `dropdown_${Date.now()}`,
+  name: name.trim(),
+  label: label.trim(),
+  options,
+})
+
+export function DropdownConfigForm({ open, editingDropdown, onOpenChange, onSave }: DropdownConfigFormProps) {
+  const [dropdownName, setDropdownName] = useState('')
+  const [dropdownLabel, setDropdownLabel] = useState('')
+  const [options, setOptions] = useState<Array<{ value: string; label: string }>>([])
+  const [newOptionValue, setNewOptionValue] = useState('')
+  const [newOptionLabel, setNewOptionLabel] = useState('')
+
+  const isEditMode = useMemo(() => Boolean(editingDropdown), [editingDropdown])
+
+  useEffect(() => {
+    if (open) {
+      setDropdownName(editingDropdown?.name ?? '')
+      setDropdownLabel(editingDropdown?.label ?? '')
+      setOptions(getDefaultOptions(editingDropdown))
+    } else {
+      setDropdownName('')
+      setDropdownLabel('')
+      setOptions([])
+      setNewOptionValue('')
+      setNewOptionLabel('')
+    }
+  }, [open, editingDropdown])
+
+  const addOption = () => {
+    if (!newOptionValue.trim() || !newOptionLabel.trim()) {
+      toast.error('Please provide both a value and label for the option')
+      return
+    }
+
+    const duplicate = options.some(
+      (opt) => opt.value.toLowerCase() === newOptionValue.trim().toLowerCase()
+    )
+
+    if (duplicate) {
+      toast.error('An option with this value already exists')
+      return
+    }
+
+    setOptions((current) => [
+      ...current,
+      { value: newOptionValue.trim(), label: newOptionLabel.trim() },
+    ])
+    setNewOptionValue('')
+    setNewOptionLabel('')
+  }
+
+  const removeOption = (index: number) => {
+    setOptions((current) => current.filter((_, i) => i !== index))
+  }
+
+  const handleSave = async () => {
+    if (!dropdownName.trim() || !dropdownLabel.trim() || options.length === 0) {
+      toast.error('Please fill all fields and add at least one option')
+      return
+    }
+
+    const config = buildDropdownConfig(editingDropdown, dropdownName, dropdownLabel, options)
+    await onSave(config, isEditMode)
+    onOpenChange(false)
+  }
+
+  return (
+    <Dialog open={open} onOpenChange={onOpenChange}>
+      <DialogContent className="max-w-2xl">
+        <DialogHeader>
+          <DialogTitle>{isEditMode ? 'Edit' : 'Create'} Dropdown Configuration</DialogTitle>
+        </DialogHeader>
+
+        <div className="space-y-4">
+          <div className="space-y-2">
+            <Label htmlFor="dropdownName">Dropdown Name (ID)</Label>
+            <Input
+              id="dropdownName"
+              placeholder="e.g., status_options"
+              value={dropdownName}
+              onChange={(e) => setDropdownName(e.target.value)}
+            />
+            <p className="text-xs text-muted-foreground">Unique identifier for this dropdown</p>
+          </div>
+
+          <div className="space-y-2">
+            <Label htmlFor="dropdownLabel">Display Label</Label>
+            <Input
+              id="dropdownLabel"
+              placeholder="e.g., Status"
+              value={dropdownLabel}
+              onChange={(e) => setDropdownLabel(e.target.value)}
+            />
+          </div>
+
+          <Separator />
+
+          <div className="space-y-2">
+            <Label>Options</Label>
+            <div className="flex gap-2">
+              <Input
+                placeholder="Value"
+                value={newOptionValue}
+                onChange={(e) => setNewOptionValue(e.target.value)}
+              />
+              <Input
+                placeholder="Label"
+                value={newOptionLabel}
+                onChange={(e) => setNewOptionLabel(e.target.value)}
+              />
+              <Button onClick={addOption} type="button">
+                <Plus size={16} />
+              </Button>
+            </div>
+          </div>
+
+          {options.length > 0 && (
+            <ScrollArea className="h-[200px] border rounded-lg p-3">
+              <div className="space-y-2">
+                {options.map((opt, i) => (
+                  <div key={i} className="flex items-center justify-between p-2 border rounded bg-muted/50">
+                    <div className="flex-1">
+                      <span className="font-mono text-sm">{opt.value}</span>
+                      <span className="mx-2 text-muted-foreground">→</span>
+                      <span className="text-sm">{opt.label}</span>
+                    </div>
+                    <Button
+                      size="sm"
+                      variant="ghost"
+                      onClick={() => removeOption(i)}
+                    >
+                      <X size={16} />
+                    </Button>
+                  </div>
+                ))}
+              </div>
+            </ScrollArea>
+          )}
+        </div>
+
+        {options.length === 0 && (
+          <div className="flex items-center gap-2 rounded-md border bg-muted/40 p-3 text-sm text-muted-foreground">
+            <Badge variant="outline">Tip</Badge>
+            Add at least one option to save this dropdown configuration.
+          </div>
+        )}
+
+        <DialogFooter>
+          <Button variant="outline" onClick={() => onOpenChange(false)}>
+            Cancel
+          </Button>
+          <Button onClick={handleSave}>
+            <FloppyDisk className="mr-2" />
+            Save
+          </Button>
+        </DialogFooter>
+      </DialogContent>
+    </Dialog>
+  )
+}

frontends/nextjs/src/components/managers/dropdown/PreviewPane.tsx

@@ -0,0 +1,44 @@
+import { Badge, Button, Card, Separator } from '@/components/ui'
+import { Pencil, Trash } from '@phosphor-icons/react'
+import type { DropdownConfig } from '@/lib/database'
+
+interface PreviewPaneProps {
+  dropdown: DropdownConfig
+  onEdit: (dropdown: DropdownConfig) => void
+  onDelete: (id: string) => void
+}
+
+export function PreviewPane({ dropdown, onEdit, onDelete }: PreviewPaneProps) {
+  const handleDelete = () => {
+    if (confirm('Are you sure you want to delete this dropdown configuration?')) {
+      onDelete(dropdown.id)
+    }
+  }
+
+  return (
+    <Card className="p-4 space-y-3">
+      <div className="flex items-start justify-between">
+        <div>
+          <h3 className="font-semibold">{dropdown.label}</h3>
+          <p className="text-xs text-muted-foreground font-mono">{dropdown.name}</p>
+        </div>
+        <div className="flex gap-1">
+          <Button size="sm" variant="ghost" onClick={() => onEdit(dropdown)}>
+            <Pencil size={16} />
+          </Button>
+          <Button size="sm" variant="ghost" onClick={handleDelete}>
+            <Trash size={16} />
+          </Button>
+        </div>
+      </div>
+      <Separator />
+      <div className="flex flex-wrap gap-1">
+        {dropdown.options.map((opt, i) => (
+          <Badge key={i} variant="secondary" className="text-xs">
+            {opt.label}
+          </Badge>
+        ))}
+      </div>
+    </Card>
+  )
+}

frontends/nextjs/src/components/managers/page-routes/Preview.tsx

@@ -0,0 +1,37 @@
+import { Badge, Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui'
+import { Eye, LockKey } from '@phosphor-icons/react'
+import type { PageConfig } from '@/lib/level-types'
+
+interface PreviewProps {
+  formData: Partial<PageConfig>
+}
+
+export function Preview({ formData }: PreviewProps) {
+  return (
+    <Card className="h-full">
+      <CardHeader>
+        <CardTitle>Route Preview</CardTitle>
+        <CardDescription>Quick glance at the route details</CardDescription>
+      </CardHeader>
+      <CardContent className="space-y-4">
+        <div>
+          <p className="text-xs uppercase text-muted-foreground">Path</p>
+          <p className="font-mono">{formData.path || '/your-path'}</p>
+        </div>
+        <div>
+          <p className="text-xs uppercase text-muted-foreground">Title</p>
+          <p className="font-semibold">{formData.title || 'Untitled Page'}</p>
+        </div>
+        <div className="flex items-center gap-3">
+          <Badge variant="outline">Level {formData.level || 1}</Badge>
+          <Badge variant="secondary">{formData.requiredRole || 'public'}</Badge>
+          {formData.requiresAuth ? (
+            <LockKey className="text-orange-500" weight="fill" />
+          ) : (
+            <Eye className="text-green-500" weight="fill" />
+          )}
+        </div>
+      </CardContent>
+    </Card>
+  )
+}

frontends/nextjs/src/components/managers/page-routes/RouteEditor.tsx

@@ -0,0 +1,107 @@
+import {
+  Button,
+  Input,
+  Label,
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+  Switch,
+} from '@/components/ui'
+import type { PageConfig, UserRole, AppLevel } from '@/lib/level-types'
+
+export type RouteFormData = Partial<PageConfig>
+
+interface RouteEditorProps {
+  formData: RouteFormData
+  onChange: (value: RouteFormData) => void
+  onSave: () => void
+  onCancel: () => void
+  isEdit: boolean
+}
+
+export function RouteEditor({ formData, onChange, onSave, onCancel, isEdit }: RouteEditorProps) {
+  return (
+    <div className="space-y-4 py-4">
+      <div className="grid grid-cols-2 gap-4">
+        <div className="space-y-2">
+          <Label htmlFor="path">Route Path *</Label>
+          <Input
+            id="path"
+            placeholder="/home"
+            value={formData.path || ''}
+            onChange={(e) => onChange({ ...formData, path: e.target.value })}
+          />
+        </div>
+        <div className="space-y-2">
+          <Label htmlFor="title">Page Title *</Label>
+          <Input
+            id="title"
+            placeholder="Home Page"
+            value={formData.title || ''}
+            onChange={(e) => onChange({ ...formData, title: e.target.value })}
+          />
+        </div>
+      </div>
+
+      <div className="grid grid-cols-2 gap-4">
+        <div className="space-y-2">
+          <Label htmlFor="level">Application Level</Label>
+          <Select
+            value={formData.level ? String(formData.level) : ''}
+            onValueChange={(value) => onChange({ ...formData, level: Number(value) as AppLevel })}
+          >
+            <SelectTrigger>
+              <SelectValue placeholder="Select level" />
+            </SelectTrigger>
+            <SelectContent>
+              <SelectItem value="1">Level 1 - Public</SelectItem>
+              <SelectItem value="2">Level 2 - User Area</SelectItem>
+              <SelectItem value="3">Level 3 - Moderator Desk</SelectItem>
+              <SelectItem value="4">Level 4 - Admin Panel</SelectItem>
+              <SelectItem value="5">Level 5 - God Builder</SelectItem>
+              <SelectItem value="6">Level 6 - Supergod Console</SelectItem>
+            </SelectContent>
+          </Select>
+        </div>
+
+        <div className="space-y-2">
+          <Label htmlFor="requiredRole">Required Role (if auth)</Label>
+          <Select
+            value={formData.requiredRole || 'public'}
+            onValueChange={(value) => onChange({ ...formData, requiredRole: value as UserRole })}
+          >
+            <SelectTrigger>
+              <SelectValue placeholder="Select role" />
+            </SelectTrigger>
+            <SelectContent>
+              <SelectItem value="public">Public</SelectItem>
+              <SelectItem value="user">User</SelectItem>
+              <SelectItem value="moderator">Moderator</SelectItem>
+              <SelectItem value="admin">Admin</SelectItem>
+              <SelectItem value="god">God</SelectItem>
+              <SelectItem value="supergod">Supergod</SelectItem>
+            </SelectContent>
+          </Select>
+        </div>
+      </div>
+
+      <div className="flex items-center space-x-2">
+        <Switch
+          id="requiresAuth"
+          checked={formData.requiresAuth}
+          onCheckedChange={(checked) => onChange({ ...formData, requiresAuth: checked })}
+        />
+        <Label htmlFor="requiresAuth" className="cursor-pointer">Requires Authentication</Label>
+      </div>
+
+      <div className="flex gap-2 justify-end">
+        <Button type="button" variant="outline" onClick={onCancel}>Cancel</Button>
+        <Button type="button" onClick={onSave}>
+          {isEdit ? 'Update Page' : 'Create Page'}
+        </Button>
+      </div>
+    </div>
+  )
+}

frontends/nextjs/src/components/managers/page-routes/RoutesTable.tsx

@@ -0,0 +1,98 @@
+import {
+  Badge,
+  Button,
+  Table,
+  TableBody,
+  TableCell,
+  TableHead,
+  TableHeader,
+  TableRow,
+} from '@/components/ui'
+import { Eye, LockKey, Pencil, Trash } from '@phosphor-icons/react'
+import type { PageConfig, AppLevel } from '@/lib/level-types'
+
+interface RoutesTableProps {
+  pages: PageConfig[]
+  onEdit: (page: PageConfig) => void
+  onDelete: (pageId: string) => void
+}
+
+const getLevelBadgeColor = (level: AppLevel) => {
+  switch (level) {
+    case 1: return 'bg-blue-500'
+    case 2: return 'bg-green-500'
+    case 3: return 'bg-orange-500'
+    case 4: return 'bg-sky-500'
+    case 5: return 'bg-purple-500'
+    case 6: return 'bg-rose-500'
+    default: return 'bg-gray-500'
+  }
+}
+
+export function RoutesTable({ pages, onEdit, onDelete }: RoutesTableProps) {
+  if (pages.length === 0) {
+    return (
+      <div className="text-center py-12 text-muted-foreground">
+        <p>No pages configured yet. Create your first page route!</p>
+      </div>
+    )
+  }
+
+  return (
+    <Table>
+      <TableHeader>
+        <TableRow>
+          <TableHead>Path</TableHead>
+          <TableHead>Title</TableHead>
+          <TableHead>Level</TableHead>
+          <TableHead>Auth</TableHead>
+          <TableHead>Required Role</TableHead>
+          <TableHead className="text-right">Actions</TableHead>
+        </TableRow>
+      </TableHeader>
+      <TableBody>
+        {pages.map((page) => (
+          <TableRow key={page.id}>
+            <TableCell className="font-mono text-sm">{page.path}</TableCell>
+            <TableCell>{page.title}</TableCell>
+            <TableCell>
+              <Badge className={getLevelBadgeColor(page.level)}>
+                Level {page.level}
+              </Badge>
+            </TableCell>
+            <TableCell>
+              {page.requiresAuth ? (
+                <LockKey className="text-orange-500" weight="fill" />
+              ) : (
+                <Eye className="text-green-500" weight="fill" />
+              )}
+            </TableCell>
+            <TableCell>
+              <Badge variant="outline">
+                {page.requiredRole || 'public'}
+              </Badge>
+            </TableCell>
+            <TableCell className="text-right">
+              <div className="flex justify-end gap-2">
+                <Button
+                  size="sm"
+                  variant="ghost"
+                  onClick={() => onEdit(page)}
+                >
+                  <Pencil />
+                </Button>
+                <Button
+                  size="sm"
+                  variant="ghost"
+                  onClick={() => onDelete(page.id)}
+                >
+                  <Trash />
+                </Button>
+              </div>
+            </TableCell>
+          </TableRow>
+        ))}
+      </TableBody>
+    </Table>
+  )
+}

frontends/nextjs/src/components/schema/level4/Tabs.tsx

@@ -0,0 +1,186 @@
+import { Button, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui'
+import { Input, Label } from '@/components/ui'
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from '@/components/ui'
+import { ValidationPanel } from '@/components/schema/level4/ValidationPanel'
+import type { FieldSchema, FieldType, ModelSchema } from '@/lib/schema-types'
+import { Plus, Trash } from '@phosphor-icons/react'
+
+interface SchemaTabsProps {
+  currentModel: ModelSchema
+  onUpdateModel: (updates: Partial<ModelSchema>) => void
+  onAddField: () => void
+  onDeleteField: (fieldName: string) => void
+  onUpdateField: (fieldName: string, updates: Partial<FieldSchema>) => void
+}
+
+export function SchemaTabs({
+  currentModel,
+  onUpdateModel,
+  onAddField,
+  onDeleteField,
+  onUpdateField,
+}: SchemaTabsProps) {
+  const handleFieldChange = (fieldName: string, updates: Partial<FieldSchema>) => {
+    onUpdateField(fieldName, updates)
+  }
+
+  return (
+    <>
+      <CardHeader>
+        <CardTitle>Edit Model: {currentModel.label ?? currentModel.name}</CardTitle>
+        <CardDescription>Configure model properties and fields</CardDescription>
+      </CardHeader>
+      <CardContent className="space-y-6">
+        <div className="grid gap-4 md:grid-cols-2">
+          <TextField
+            label="Model Name (ID)"
+            value={currentModel.name}
+            onChange={(value) => onUpdateModel({ name: value })}
+            placeholder="user_model"
+          />
+          <TextField
+            label="Display Label"
+            value={currentModel.label || ''}
+            onChange={(value) => onUpdateModel({ label: value })}
+            placeholder="User"
+          />
+          <TextField
+            label="Plural Label"
+            value={currentModel.labelPlural || ''}
+            onChange={(value) => onUpdateModel({ labelPlural: value })}
+            placeholder="Users"
+          />
+          <TextField
+            label="Icon Name"
+            value={currentModel.icon || ''}
+            onChange={(value) => onUpdateModel({ icon: value })}
+            placeholder="users"
+          />
+        </div>
+
+        <div>
+          <div className="flex items-center justify-between mb-4">
+            <Label className="text-base">Fields</Label>
+            <Button size="sm" onClick={onAddField}>
+              <Plus className="mr-2" size={16} />
+              Add Field
+            </Button>
+          </div>
+
+          <div className="space-y-4">
+            {currentModel.fields.length === 0 ? (
+              <p className="text-sm text-muted-foreground text-center py-8 border border-dashed rounded-lg">
+                No fields yet. Add a field to start.
+              </p>
+            ) : (
+              currentModel.fields.map((field) => (
+                <FieldCard
+                  key={field.name}
+                  field={field}
+                  onChange={(updates) => handleFieldChange(field.name, updates)}
+                  onDelete={() => onDeleteField(field.name)}
+                />
+              ))
+            )}
+          </div>
+        </div>
+      </CardContent>
+    </>
+  )
+}
+
+interface FieldCardProps {
+  field: FieldSchema
+  onChange: (updates: Partial<FieldSchema>) => void
+  onDelete: () => void
+}
+
+function FieldCard({ field, onChange, onDelete }: FieldCardProps) {
+  return (
+    <div className="border-2 rounded-lg">
+      <CardContent className="pt-6 space-y-4">
+        <div className="flex items-start justify-between gap-4">
+          <div className="grid gap-4 md:grid-cols-2 flex-1">
+            <TextField
+              label="Field Name"
+              value={field.name}
+              onChange={(value) => onChange({ name: value })}
+              placeholder="email"
+              labelClassName="text-xs"
+            />
+            <TextField
+              label="Label"
+              value={field.label || ''}
+              onChange={(value) => onChange({ label: value })}
+              placeholder="Email Address"
+              labelClassName="text-xs"
+            />
+            <div className="space-y-2">
+              <Label className="text-xs">Type</Label>
+              <Select
+                value={field.type}
+                onValueChange={(value) => onChange({ type: value as FieldType })}
+              >
+                <SelectTrigger>
+                  <SelectValue />
+                </SelectTrigger>
+                <SelectContent>
+                  <SelectItem value="string">String</SelectItem>
+                  <SelectItem value="text">Text</SelectItem>
+                  <SelectItem value="number">Number</SelectItem>
+                  <SelectItem value="boolean">Boolean</SelectItem>
+                  <SelectItem value="date">Date</SelectItem>
+                  <SelectItem value="datetime">DateTime</SelectItem>
+                  <SelectItem value="email">Email</SelectItem>
+                  <SelectItem value="url">URL</SelectItem>
+                  <SelectItem value="select">Select</SelectItem>
+                  <SelectItem value="relation">Relation</SelectItem>
+                  <SelectItem value="json">JSON</SelectItem>
+                </SelectContent>
+              </Select>
+            </div>
+            <TextField
+              label="Default Value"
+              value={field.default ?? ''}
+              onChange={(value) => onChange({ default: value || undefined })}
+              placeholder="Default"
+              labelClassName="text-xs"
+            />
+          </div>
+          <Button variant="ghost" size="sm" onClick={onDelete}>
+            <Trash size={16} />
+          </Button>
+        </div>
+
+        <ValidationPanel field={field} onChange={onChange} />
+      </CardContent>
+    </div>
+  )
+}
+
+interface TextFieldProps {
+  label: string
+  value: string
+  onChange: (value: string) => void
+  placeholder?: string
+  labelClassName?: string
+}
+
+function TextField({ label, value, onChange, placeholder, labelClassName }: TextFieldProps) {
+  return (
+    <div className="space-y-2">
+      <Label className={labelClassName}>{label}</Label>
+      <Input
+        value={value}
+        onChange={(event) => onChange(event.target.value)}
+        placeholder={placeholder}
+      />
+    </div>
+  )
+}

frontends/nextjs/src/components/schema/level4/ValidationPanel.tsx

@@ -0,0 +1,84 @@
+import { Input, Label, Switch } from '@/components/ui'
+import type { FieldSchema } from '@/lib/schema-types'
+
+interface ValidationPanelProps {
+  field: FieldSchema
+  onChange: (updates: Partial<FieldSchema>) => void
+}
+
+const numericKeys = ['min', 'max', 'minLength', 'maxLength'] as const
+type NumericValidationKey = (typeof numericKeys)[number]
+
+const labels: Record<NumericValidationKey, string> = {
+  min: 'Minimum Value',
+  max: 'Maximum Value',
+  minLength: 'Minimum Length',
+  maxLength: 'Maximum Length',
+}
+
+export function ValidationPanel({ field, onChange }: ValidationPanelProps) {
+  const handleNumberChange = (key: NumericValidationKey, value: string) => {
+    const parsedValue = value === '' ? undefined : Number(value)
+    const nextValidation = {
+      ...field.validation,
+      [key]: Number.isNaN(parsedValue) ? undefined : parsedValue,
+    }
+
+    onChange({ validation: nextValidation })
+  }
+
+  return (
+    <div className="space-y-4">
+      <div className="grid gap-4 md:grid-cols-2 lg:grid-cols-4">
+        {numericKeys.map((key) => (
+          <div key={key} className="space-y-2">
+            <Label className="text-xs">{labels[key]}</Label>
+            <Input
+              type="number"
+              value={field.validation?.[key] ?? ''}
+              onChange={(event) => handleNumberChange(key, event.target.value)}
+              placeholder="0"
+            />
+          </div>
+        ))}
+        <div className="space-y-2 lg:col-span-2">
+          <Label className="text-xs">Pattern (regex)</Label>
+          <Input
+            value={field.validation?.pattern ?? ''}
+            onChange={(event) =>
+              onChange({
+                validation: {
+                  ...field.validation,
+                  pattern: event.target.value || undefined,
+                },
+              })
+            }
+            placeholder="^\\d{3}-\\d{3}-\\d{4}$"
+          />
+        </div>
+      </div>
+
+      <div className="flex flex-wrap gap-4">
+        <Toggle label="Required" checked={field.required} onCheckedChange={(checked) => onChange({ required: checked })} />
+        <Toggle label="Unique" checked={field.unique} onCheckedChange={(checked) => onChange({ unique: checked })} />
+        <Toggle label="Editable" checked={field.editable !== false} onCheckedChange={(checked) => onChange({ editable: checked })} />
+        <Toggle label="Searchable" checked={field.searchable} onCheckedChange={(checked) => onChange({ searchable: checked })} />
+      </div>
+    </div>
+  )
+}
+
+interface ToggleProps {
+  label: string
+  checked?: boolean
+  onCheckedChange: (value: boolean) => void
+}
+
+function Toggle({ label, checked, onCheckedChange }: ToggleProps) {
+  return (
+    <div className="flex items-center gap-2">
+      <Switch checked={checked ?? false} onCheckedChange={onCheckedChange} />
+      <Label className="text-xs">{label}</Label>
+    </div>
+  )
+}

frontends/nextjs/src/components/schema/level4/useSchemaLevel4.ts

@@ -0,0 +1,127 @@
+import { useCallback, useEffect, useMemo, useState } from 'react'
+import { toast } from 'sonner'
+
+import type { FieldSchema, ModelSchema } from '@/lib/schema-types'
+
+interface UseSchemaLevel4Props {
+  schemas: ModelSchema[]
+  onSchemasChange: (schemas: ModelSchema[]) => void
+}
+
+export function useSchemaLevel4({ schemas, onSchemasChange }: UseSchemaLevel4Props) {
+  const [selectedModel, setSelectedModel] = useState<string | null>(schemas[0]?.name ?? null)
+
+  useEffect(() => {
+    if (!selectedModel && schemas[0]) {
+      setSelectedModel(schemas[0].name)
+    }
+
+    if (selectedModel && !schemas.some(schema => schema.name === selectedModel)) {
+      setSelectedModel(schemas[0]?.name ?? null)
+    }
+  }, [schemas, selectedModel])
+
+  const currentModel = useMemo(
+    () => schemas.find((schema) => schema.name === selectedModel) ?? null,
+    [schemas, selectedModel]
+  )
+
+  const applyChanges = useCallback(
+    (nextSchemas: ModelSchema[]) => {
+      onSchemasChange(nextSchemas)
+    },
+    [onSchemasChange]
+  )
+
+  const handleAddModel = useCallback(() => {
+    const newModel: ModelSchema = {
+      name: `Model_${Date.now()}`,
+      label: 'New Model',
+      fields: [],
+    }
+
+    applyChanges([...schemas, newModel])
+    setSelectedModel(newModel.name)
+    toast.success('Model created')
+  }, [applyChanges, schemas])
+
+  const handleDeleteModel = useCallback(
+    (modelName: string) => {
+      const updatedSchemas = schemas.filter((schema) => schema.name !== modelName)
+
+      applyChanges(updatedSchemas)
+      if (selectedModel === modelName) {
+        setSelectedModel(updatedSchemas[0]?.name ?? null)
+      }
+      toast.success('Model deleted')
+    },
+    [applyChanges, schemas, selectedModel]
+  )
+
+  const handleUpdateModel = useCallback(
+    (updates: Partial<ModelSchema>) => {
+      if (!currentModel) return
+
+      applyChanges(
+        schemas.map((schema) =>
+          schema.name === currentModel.name ? { ...schema, ...updates } : schema
+        )
+      )
+    },
+    [applyChanges, currentModel, schemas]
+  )
+
+  const handleAddField = useCallback(() => {
+    if (!currentModel) return
+
+    const newField: FieldSchema = {
+      name: `field_${Date.now()}`,
+      type: 'string',
+      label: 'New Field',
+      required: false,
+      editable: true,
+    }
+
+    handleUpdateModel({
+      fields: [...currentModel.fields, newField],
+    })
+    toast.success('Field added')
+  }, [currentModel, handleUpdateModel])
+
+  const handleDeleteField = useCallback(
+    (fieldName: string) => {
+      if (!currentModel) return
+
+      handleUpdateModel({
+        fields: currentModel.fields.filter((field) => field.name !== fieldName),
+      })
+      toast.success('Field deleted')
+    },
+    [currentModel, handleUpdateModel]
+  )
+
+  const handleUpdateField = useCallback(
+    (fieldName: string, updates: Partial<FieldSchema>) => {
+      if (!currentModel) return
+
+      handleUpdateModel({
+        fields: currentModel.fields.map((field) =>
+          field.name === fieldName ? { ...field, ...updates } : field
+        ),
+      })
+    },
+    [currentModel, handleUpdateModel]
+  )
+
+  return {
+    currentModel,
+    selectedModel,
+    selectModel: setSelectedModel,
+    handleAddField,
+    handleAddModel,
+    handleDeleteField,
+    handleDeleteModel,
+    handleUpdateField,
+    handleUpdateModel,
+  }
+}