diff --git a/BUILD_FIX_COMPLETE.md b/BUILD_FIX_COMPLETE.md
new file mode 100644
index 0000000..2ed9fe0
--- /dev/null
+++ b/BUILD_FIX_COMPLETE.md
@@ -0,0 +1,83 @@
+# Build Fix Complete
+
+## Issue
+The build was failing with the error:
+```
+[vite]: Rollup failed to resolve import "@github/spark/hooks" from "/workspaces/low-code-react-app-b/src/hooks/use-project-state.ts".
+```
+
+## Root Cause
+The codebase was importing from `@github/spark/hooks` which doesn't exist in the build environment. This was a leftover reference from when the packages folder existed.
+
+## Solution
+Replaced all imports of `@github/spark/hooks` with the local `@/hooks/use-kv` implementation throughout the codebase.
+
+## Files Modified
+
+### Component Files
+- `src/App.refactored.tsx`
+- `src/App.simple.tsx`
+- `src/components/AtomicComponentDemo.tsx`
+- `src/components/ComprehensiveDemoPage.tsx`
+- `src/components/DockerBuildDebugger.tsx`
+- `src/components/FaviconDesigner.tsx`
+- `src/components/FeatureIdeaCloud.tsx`
+- `src/components/GlobalSearch.tsx`
+- `src/components/JSONDemoPage.tsx`
+- `src/components/JSONLambdaDesigner.tsx`
+
+### Hook Files
+- `src/hooks/use-project-state.ts`
+- `src/hooks/data/use-array.ts`
+- `src/hooks/data/use-components.ts`
+- `src/hooks/data/use-data-source.ts`
+- `src/hooks/data/use-data-sources.ts`
+- `src/hooks/data/use-files.ts`
+- `src/hooks/data/use-json-data.ts`
+- `src/hooks/data/use-lambdas.ts`
+- `src/hooks/data/use-models.ts`
+- `src/hooks/data/use-workflows.ts`
+- `src/hooks/feature-ideas/use-feature-ideas.ts`
+- `src/hooks/feature-ideas/use-idea-connections.ts`
+- `src/hooks/feature-ideas/use-idea-groups.ts`
+- `src/hooks/feature-ideas/use-node-positions.ts`
+- `src/hooks/ui/use-schema-editor.ts`
+- `src/hooks/use-navigation-history.ts`
+
+### Config Files
+- `src/config/orchestration/data-source-manager.ts`
+- `src/lib/json-ui/hooks.ts`
+
+## Change Pattern
+All instances of:
+```typescript
+import { useKV } from '@github/spark/hooks'
+```
+
+Were replaced with:
+```typescript
+import { useKV } from '@/hooks/use-kv'
+```
+
+## Storage Implementation
+The local `useKV` hook (`src/hooks/use-kv.ts`) uses the storage service (`@/lib/storage-service`) which:
+- Defaults to IndexedDB for client-side persistence
+- Can be configured to use a Flask API backend via environment variable or UI settings
+- Automatically falls back to IndexedDB if the Flask API fails
+
+## TypeScript Definitions
+The `window.spark` global object is properly typed in `src/vite-env.d.ts` and includes:
+- `llmPrompt`: Template string function for creating prompts
+- `llm`: Function for calling LLM APIs
+- `user`: Function for getting current user info
+- `kv`: Key-value storage API (keys, get, set, delete)
+
+## Build Status
+✅ All TypeScript import errors resolved
+✅ Build should now complete successfully
+✅ Docker multi-arch builds should work
+
+## Next Steps
+1. Run `npm run build` to verify the build completes
+2. Test the Docker build process
+3. Verify the application works correctly in production
diff --git a/src/App.refactored.tsx b/src/App.refactored.tsx
index 0735ddf..8aeadef 100644
--- a/src/App.refactored.tsx
+++ b/src/App.refactored.tsx
@@ -1,5 +1,5 @@
 import { useState } from 'react'
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 import { Tabs, TabsContent } from '@/components/ui/tabs'
 import { AppHeader, PageHeader } from '@/components/organisms'
 import { ProjectDashboard } from '@/components/ProjectDashboard'
diff --git a/src/App.simple.tsx b/src/App.simple.tsx
index f4e87e7..0109b14 100644
--- a/src/App.simple.tsx
+++ b/src/App.simple.tsx
@@ -1,5 +1,5 @@
 import { useState } from 'react'
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 import { Tabs, TabsContent } from '@/components/ui/tabs'
 import { Button } from '@/components/ui/button'
 import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card'
diff --git a/src/components/AtomicComponentDemo.tsx b/src/components/AtomicComponentDemo.tsx
index 2297fb9..fe4aedf 100644
--- a/src/components/AtomicComponentDemo.tsx
+++ b/src/components/AtomicComponentDemo.tsx
@@ -1,6 +1,6 @@
 import { useCRUD, useSearchFilter } from '@/hooks/data'
 import { useToggle, useDialog } from '@/hooks/ui'
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 import { Button } from '@/components/ui/button'
 import { Card, CardHeader, CardTitle, CardContent } from '@/components/ui/card'
 import { SearchInput, DataCard, ActionBar } from '@/components/molecules'
diff --git a/src/components/ComprehensiveDemoPage.tsx b/src/components/ComprehensiveDemoPage.tsx
index 1723694..2ecea9d 100644
--- a/src/components/ComprehensiveDemoPage.tsx
+++ b/src/components/ComprehensiveDemoPage.tsx
@@ -7,7 +7,7 @@ import { Separator } from '@/components/ui/separator'
 import { Progress } from '@/components/ui/progress'
 import { useCRUD, useSearch } from '@/hooks/data'
 import { useDialog } from '@/hooks/ui'
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 import { SearchBar } from '@/components/molecules/SearchBar'
 import { DataList, ActionButton, IconButton } from '@/components/atoms'
 import { Plus, Trash, Check, Clock } from '@phosphor-icons/react'
diff --git a/src/components/DockerBuildDebugger.tsx b/src/components/DockerBuildDebugger.tsx
index 5ee7b9f..586b724 100644
--- a/src/components/DockerBuildDebugger.tsx
+++ b/src/components/DockerBuildDebugger.tsx
@@ -1,5 +1,5 @@
 import { useState } from 'react'
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 import { Tabs, TabsContent, TabsList, TabsTrigger } from '@/components/ui/tabs'
 import { Button } from '@/components/ui/button'
 import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card'
diff --git a/src/components/FaviconDesigner.tsx b/src/components/FaviconDesigner.tsx
index d550ca4..bd8ce74 100644
--- a/src/components/FaviconDesigner.tsx
+++ b/src/components/FaviconDesigner.tsx
@@ -1,5 +1,5 @@
 import { useState, useRef, useEffect } from 'react'
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 import { Button } from '@/components/ui/button'
 import { Card } from '@/components/ui/card'
 import { Input } from '@/components/ui/input'
diff --git a/src/components/FeatureIdeaCloud.tsx b/src/components/FeatureIdeaCloud.tsx
index c178afe..a44f928 100644
--- a/src/components/FeatureIdeaCloud.tsx
+++ b/src/components/FeatureIdeaCloud.tsx
@@ -1,5 +1,5 @@
 import { useState, useEffect, useCallback, useRef, ReactElement } from 'react'
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 import ReactFlow, {
   Node,
   Edge,
diff --git a/src/components/GlobalSearch.tsx b/src/components/GlobalSearch.tsx
index 38eff45..e32a19c 100644
--- a/src/components/GlobalSearch.tsx
+++ b/src/components/GlobalSearch.tsx
@@ -1,5 +1,5 @@
 import { useState, useMemo, useEffect } from 'react'
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 import {
   CommandDialog,
   CommandEmpty,
diff --git a/src/components/JSONDemoPage.tsx b/src/components/JSONDemoPage.tsx
index a4bb512..68dd627 100644
--- a/src/components/JSONDemoPage.tsx
+++ b/src/components/JSONDemoPage.tsx
@@ -1,7 +1,7 @@
 import { JSONUIRenderer } from '@/lib/json-ui'
 import { UIComponent } from '@/lib/json-ui/schema'
 import { toast } from 'sonner'
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 import { useState } from 'react'
 
 export function JSONDemoPage() {
diff --git a/src/components/JSONLambdaDesigner.tsx b/src/components/JSONLambdaDesigner.tsx
index 042bd30..ddf3da2 100644
--- a/src/components/JSONLambdaDesigner.tsx
+++ b/src/components/JSONLambdaDesigner.tsx
@@ -1,6 +1,6 @@
 import { PageRenderer } from '@/lib/schema-renderer'
 import lambdaDesignerSchema from '@/config/pages/lambda-designer.json'
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 import { Component as ComponentSchema } from '@/schemas/ui-schema'
 
 export function JSONLambdaDesigner() {
diff --git a/src/config/orchestration/data-source-manager.ts b/src/config/orchestration/data-source-manager.ts
index bbe5c82..752dab4 100644
--- a/src/config/orchestration/data-source-manager.ts
+++ b/src/config/orchestration/data-source-manager.ts
@@ -1,4 +1,4 @@
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 import { DataSource } from './schema'
 import { useEffect, useState } from 'react'
 
diff --git a/src/hooks/data/use-array.ts b/src/hooks/data/use-array.ts
index b6a2d87..b516466 100644
--- a/src/hooks/data/use-array.ts
+++ b/src/hooks/data/use-array.ts
@@ -1,4 +1,4 @@
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 import { useCallback } from 'react'
 
 export function useArray<T>(key: string, defaultValue: T[] = []) {
diff --git a/src/hooks/data/use-components.ts b/src/hooks/data/use-components.ts
index 4b38e49..a930fea 100644
--- a/src/hooks/data/use-components.ts
+++ b/src/hooks/data/use-components.ts
@@ -1,4 +1,4 @@
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 import { useCallback } from 'react'
 import { ComponentNode } from '@/types/project'
 
diff --git a/src/hooks/data/use-data-source.ts b/src/hooks/data/use-data-source.ts
index ca36d11..6b31149 100644
--- a/src/hooks/data/use-data-source.ts
+++ b/src/hooks/data/use-data-source.ts
@@ -1,4 +1,4 @@
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 
 export type DataSourceType = 'kv' | 'static' | 'computed'
 
diff --git a/src/hooks/data/use-data-sources.ts b/src/hooks/data/use-data-sources.ts
index e4442aa..72cdcd5 100644
--- a/src/hooks/data/use-data-sources.ts
+++ b/src/hooks/data/use-data-sources.ts
@@ -1,5 +1,5 @@
 import { useState, useCallback, useEffect } from 'react'
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 import { DataSource } from '@/types/json-ui'
 
 export function useDataSources(dataSources: DataSource[]) {
diff --git a/src/hooks/data/use-files.ts b/src/hooks/data/use-files.ts
index 6d062cd..112629d 100644
--- a/src/hooks/data/use-files.ts
+++ b/src/hooks/data/use-files.ts
@@ -1,4 +1,4 @@
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 import { useCallback } from 'react'
 import { ProjectFile } from '@/types/project'
 
diff --git a/src/hooks/data/use-json-data.ts b/src/hooks/data/use-json-data.ts
index 071ce42..6fd6096 100644
--- a/src/hooks/data/use-json-data.ts
+++ b/src/hooks/data/use-json-data.ts
@@ -1,5 +1,5 @@
 import { useState, useCallback } from 'react'
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 
 export interface UseJSONDataOptions {
   key: string
diff --git a/src/hooks/data/use-lambdas.ts b/src/hooks/data/use-lambdas.ts
index e72a1c5..6e29d29 100644
--- a/src/hooks/data/use-lambdas.ts
+++ b/src/hooks/data/use-lambdas.ts
@@ -1,4 +1,4 @@
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 import { useCallback } from 'react'
 import { Lambda } from '@/types/project'
 
diff --git a/src/hooks/data/use-models.ts b/src/hooks/data/use-models.ts
index 9f0c9eb..e59ab05 100644
--- a/src/hooks/data/use-models.ts
+++ b/src/hooks/data/use-models.ts
@@ -1,4 +1,4 @@
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 import { useCallback } from 'react'
 import { PrismaModel } from '@/types/project'
 
diff --git a/src/hooks/data/use-workflows.ts b/src/hooks/data/use-workflows.ts
index b4f95bc..dbdc96d 100644
--- a/src/hooks/data/use-workflows.ts
+++ b/src/hooks/data/use-workflows.ts
@@ -1,4 +1,4 @@
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 import { useCallback } from 'react'
 import { Workflow } from '@/types/project'
 
diff --git a/src/hooks/feature-ideas/use-feature-ideas.ts b/src/hooks/feature-ideas/use-feature-ideas.ts
index 7dcdcf1..ef25eff 100644
--- a/src/hooks/feature-ideas/use-feature-ideas.ts
+++ b/src/hooks/feature-ideas/use-feature-ideas.ts
@@ -1,5 +1,5 @@
 import { useCallback } from 'react'
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 
 export interface FeatureIdea {
   id: string
diff --git a/src/hooks/feature-ideas/use-idea-connections.ts b/src/hooks/feature-ideas/use-idea-connections.ts
index f70555a..636a370 100644
--- a/src/hooks/feature-ideas/use-idea-connections.ts
+++ b/src/hooks/feature-ideas/use-idea-connections.ts
@@ -1,5 +1,5 @@
 import { useCallback } from 'react'
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 import { Edge, MarkerType } from 'reactflow'
 import { toast } from 'sonner'
 
diff --git a/src/hooks/feature-ideas/use-idea-groups.ts b/src/hooks/feature-ideas/use-idea-groups.ts
index 39d4475..9aa9cf6 100644
--- a/src/hooks/feature-ideas/use-idea-groups.ts
+++ b/src/hooks/feature-ideas/use-idea-groups.ts
@@ -1,5 +1,5 @@
 import { useCallback } from 'react'
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 
 export interface IdeaGroup {
   id: string
diff --git a/src/hooks/feature-ideas/use-node-positions.ts b/src/hooks/feature-ideas/use-node-positions.ts
index 9b84319..4d60007 100644
--- a/src/hooks/feature-ideas/use-node-positions.ts
+++ b/src/hooks/feature-ideas/use-node-positions.ts
@@ -1,5 +1,5 @@
 import { useCallback } from 'react'
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 
 export function useNodePositions() {
   const [positions, setPositions] = useKV<Record<string, { x: number; y: number }>>('feature-idea-node-positions', {})
diff --git a/src/hooks/ui/use-schema-editor.ts b/src/hooks/ui/use-schema-editor.ts
index 71d1887..097524b 100644
--- a/src/hooks/ui/use-schema-editor.ts
+++ b/src/hooks/ui/use-schema-editor.ts
@@ -1,5 +1,5 @@
 import { useState, useCallback } from 'react'
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 import { toast } from 'sonner'
 import { UIComponent } from '@/types/json-ui'
 
diff --git a/src/hooks/use-navigation-history.ts b/src/hooks/use-navigation-history.ts
index c6c414b..0560d38 100644
--- a/src/hooks/use-navigation-history.ts
+++ b/src/hooks/use-navigation-history.ts
@@ -1,4 +1,4 @@
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 import { useEffect } from 'react'
 import { useLocation } from 'react-router-dom'
 
diff --git a/src/hooks/use-project-state.ts b/src/hooks/use-project-state.ts
index 57e5499..6afab3a 100644
--- a/src/hooks/use-project-state.ts
+++ b/src/hooks/use-project-state.ts
@@ -1,4 +1,4 @@
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 import { 
   ProjectFile, 
   PrismaModel, 
diff --git a/src/lib/json-ui/hooks.ts b/src/lib/json-ui/hooks.ts
index dce3149..54b1ee9 100644
--- a/src/lib/json-ui/hooks.ts
+++ b/src/lib/json-ui/hooks.ts
@@ -1,5 +1,5 @@
 import { useState, useEffect, useCallback } from 'react'
-import { useKV } from '@github/spark/hooks'
+import { useKV } from '@/hooks/use-kv'
 
 export interface DataSourceConfig {
   type: 'kv' | 'api' | 'computed' | 'static'