# 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