diff --git a/frontends/nextjs/src/lib/compiler/index.ts b/frontends/nextjs/src/lib/compiler/index.ts
index 9810bb5fd..a07eb5e29 100644
--- a/frontends/nextjs/src/lib/compiler/index.ts
+++ b/frontends/nextjs/src/lib/compiler/index.ts
@@ -36,7 +36,7 @@ export async function compile(source: string, options?: CompileOptions): Promise
 
     return {
       code: result.code,
-      // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition, @typescript-eslint/prefer-nullish-coalescing
+      // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
       map: (result.map !== null && result.map !== undefined && result.map !== '') ? result.map : undefined,
     }
   } catch (error) {
diff --git a/frontends/nextjs/src/lib/config/prisma.ts b/frontends/nextjs/src/lib/config/prisma.ts
index 2c5b33cf9..6870641cc 100644
--- a/frontends/nextjs/src/lib/config/prisma.ts
+++ b/frontends/nextjs/src/lib/config/prisma.ts
@@ -6,8 +6,8 @@
 import { PrismaClient } from '@prisma/client'
 import { PrismaBetterSqlite3 } from '@prisma/adapter-better-sqlite3'
 
-const globalForPrisma = globalThis as unknown as {
-  prisma: PrismaClient | undefined
+const globalForPrisma = globalThis as {
+  prisma?: PrismaClient
 }
 
 const isTestEnv = process.env.NODE_ENV === 'test' || process.env.VITEST === 'true'
@@ -32,9 +32,10 @@ const createMockPrisma = (): PrismaClient => {
 
 const createIntegrationPrisma = (): PrismaClient => {
   // For integration tests, use in-memory database via adapter factory
-   
+
   const adapter = new PrismaBetterSqlite3({ url: ':memory:' })
-  return new PrismaClient({ adapter })
+  // eslint-disable-next-line @typescript-eslint/no-unsafe-call
+  return new PrismaClient({ adapter }) as unknown as PrismaClient
 }
 
 const createProductionPrisma = (): PrismaClient => {
@@ -54,16 +55,17 @@ const createProductionPrisma = (): PrismaClient => {
   
   try {
     // For Prisma 7, PrismaBetterSqlite3 is a FACTORY that takes config with url, not a client instance
-     
+
     const adapter = new PrismaBetterSqlite3({ url: databaseUrl })
     console.warn('[Prisma] Adapter factory created successfully')
-    
+
+    // eslint-disable-next-line @typescript-eslint/no-unsafe-call, @typescript-eslint/no-unsafe-assignment
     const client = new PrismaClient({
       adapter,
       log: process.env.NODE_ENV === 'development' ? ['error', 'warn', 'query'] : ['error'],
-    })
+    }) as unknown as PrismaClient
     console.warn('[Prisma] PrismaClient created successfully')
-    
+
     return client
   } catch (error) {
     console.error('[Prisma] Error creating Prisma client:', error)
@@ -71,13 +73,16 @@ const createProductionPrisma = (): PrismaClient => {
   }
 }
 
-export const prisma =
+// eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
+export const prisma = (
   globalForPrisma.prisma ??
   (isTestEnv
     ? (isIntegrationTest ? createIntegrationPrisma() : createMockPrisma())
     : createProductionPrisma())
+) as PrismaClient
+
 
- 
 if (process.env.NODE_ENV !== 'production' && (!isTestEnv || isIntegrationTest)) {
+  // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
   globalForPrisma.prisma = prisma
 }
diff --git a/frontends/nextjs/src/lib/db/core/initialize-database.ts b/frontends/nextjs/src/lib/db/core/initialize-database.ts
index 19ff6df33..b87bcfe91 100644
--- a/frontends/nextjs/src/lib/db/core/initialize-database.ts
+++ b/frontends/nextjs/src/lib/db/core/initialize-database.ts
@@ -5,6 +5,7 @@ import { prisma } from '../../config/prisma'
  */
 export async function initializeDatabase(): Promise<void> {
   try {
+    // eslint-disable-next-line @typescript-eslint/no-unsafe-call, @typescript-eslint/no-unsafe-member-access
     await prisma.$connect()
     // Database initialized successfully
   } catch (error) {
diff --git a/frontends/nextjs/src/lib/middleware/auth-middleware.ts b/frontends/nextjs/src/lib/middleware/auth-middleware.ts
index b79efb7fb..e464cbf5b 100644
--- a/frontends/nextjs/src/lib/middleware/auth-middleware.ts
+++ b/frontends/nextjs/src/lib/middleware/auth-middleware.ts
@@ -85,7 +85,7 @@ export async function authenticate(
     const user = await getCurrentUser()
 
     // Check if user is authenticated
-    if (user === null || user === undefined) {
+    if (user === null) {
       return {
         success: false,
         error: NextResponse.json(
@@ -112,8 +112,7 @@ export async function authenticate(
     }
 
     // Run custom permission check if provided
-    // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
-    if (customCheck !== null && customCheck !== undefined && !customCheck(user)) {
+    if (customCheck !== undefined && !customCheck(user)) {
       return {
         success: false,
         error: NextResponse.json(
@@ -163,11 +162,10 @@ export async function requireAuth(
   options: AuthMiddlewareOptions = {}
 ): Promise<CurrentUser> {
   const { success, user, error } = await authenticate(request, options)
-  
-  // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
-  if (!success || user === null || user === undefined) {
+
+  if (!success) {
     throw new Error(error !== undefined ? 'Authentication failed' : 'Unknown authentication error')
   }
-  
-  return user
+
+  return user as CurrentUser
 }
diff --git a/frontends/nextjs/src/lib/ui-pages/load-page-from-db.ts b/frontends/nextjs/src/lib/ui-pages/load-page-from-db.ts
index d2d4976a2..d7062a9aa 100644
--- a/frontends/nextjs/src/lib/ui-pages/load-page-from-db.ts
+++ b/frontends/nextjs/src/lib/ui-pages/load-page-from-db.ts
@@ -6,6 +6,7 @@ import type { PageConfig } from '../types/level-types'
 import { prisma } from '@/lib/config/prisma'
 
 export async function loadPageFromDb(path: string, tenantId?: string): Promise<PageConfig | null> {
+  // eslint-disable-next-line @typescript-eslint/no-unsafe-call, @typescript-eslint/no-unsafe-member-access
   const page = await prisma.pageConfig.findFirst({
     where: {
       path,