docs: add implementation summary for server app

Add IMPLEMENTATION.md documenting the complete server app structure,
architecture, deployment process, and key decisions

Agent-Logs-Url: https://github.com/objectstack-ai/objectui/sessions/1401bb2d-d094-4280-a66d-bee5388fc83a

Co-authored-by: xuyushun441-sys <255036401+xuyushun441-sys@users.noreply.github.com>

Author: Claude

apps/server/IMPLEMENTATION.md

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+# Independent Vercel Server Implementation
+
+## Summary
+
+Successfully created an independent `apps/server` package that separates the Vercel backend deployment from the console frontend, following the pattern from `objectstack-ai/framework/apps/server`.
+
+## What Was Created
+
+### Core Files
+
+1. **package.json** - Dependencies and scripts for the server
+2. **objectstack.config.ts** - Server configuration with plugin loading
+3. **server/index.ts** - Serverless function entrypoint with Hono adapter
+4. **api/[[...route]].js** - Vercel catch-all API handler
+
+### Build Infrastructure
+
+5. **scripts/build-vercel.sh** - Build script for Vercel deployment
+6. **scripts/bundle-api.mjs** - ESBuild bundler configuration
+7. **vercel.json** - Vercel deployment configuration
+8. **tsconfig.json** - TypeScript configuration
+
+### Supporting Files
+
+9. **.env.example** - Environment variable template
+10. **.gitignore** - Git ignore rules
+11. **.vercelignore** - Vercel ignore rules
+12. **README.md** - Usage and API documentation
+13. **DEPLOYMENT.md** - Detailed deployment guide
+
+## Architecture
+
+```
+apps/server/
+├── api/
+│   ├── [[...route]].js      # Vercel entry (committed)
+│   └── _handler.js           # Bundled handler (generated)
+├── server/
+│   └── index.ts              # Server implementation
+├── scripts/
+│   ├── build-vercel.sh       # Build orchestration
+│   └── bundle-api.mjs        # API bundler
+├── objectstack.config.ts     # Kernel configuration
+└── vercel.json               # Vercel config
+```
+
+## Key Features
+
+### Plugin Loading Order
+
+Critical for proper initialization:
+
+1. **MemoryI18nPlugin** - Registers i18n service early
+2. **ObjectQLPlugin** - Provides query engine
+3. **DriverPlugin** (InMemoryDriver) - Database driver
+4. **AppPlugins** - CRM, Todo, Kitchen Sink examples
+5. **SetupPlugin** - Must precede AuthPlugin
+6. **AuthPlugin** - Authentication (uses setupNav)
+7. **ConsolePlugin** - Serves frontend UI
+
+### Build Process
+
+1. Builds console with `VITE_RUNTIME_MODE=server`
+2. Bundles `server/index.ts` → `api/_handler.js` with esbuild
+3. Copies console dist to `public/` for static serving
+
+### Runtime Flow
+
+1. Vercel calls `api/[[...route]].js`
+2. Delegates to bundled `api/_handler.js`
+3. Kernel boots on cold start (cached for warm requests)
+4. Hono app handles `/api/v1/*` requests
+5. Static files served from `public/`
+
+## Environment Variables
+
+**Required:**
+- `AUTH_SECRET` - Min 32 characters for production
+
+**Optional:**
+- `NEXT_PUBLIC_BASE_URL` - Auto-detected from VERCEL_URL
+
+## Deployment
+
+### Quick Deploy
+
+```bash
+cd apps/server
+vercel
+```
+
+### Set Environment Variables
+
+```bash
+vercel env add AUTH_SECRET production
+```
+
+### Production Deploy
+
+```bash
+vercel --prod
+```
+
+## API Endpoints
+
+- **Discovery:** `/api/v1/discovery`
+- **Metadata:** `/api/v1/meta/objects`
+- **Data CRUD:** `/api/v1/data/:object`
+- **Console UI:** `/` (root)
+
+## Testing Locally
+
+```bash
+# Install dependencies
+pnpm install
+
+# Run dev server
+cd apps/server
+pnpm dev
+
+# Test API
+curl http://localhost:3000/api/v1/discovery
+```
+
+## Differences from Framework Reference
+
+1. Serves ObjectUI Console (not separate Studio app)
+2. Console built from `apps/console` with server mode
+3. Uses `@object-ui/*` example apps instead of `@example/*`
+4. Imports ConsolePlugin from `@object-ui/console` package
+5. Same in-memory driver pattern for development
+
+## Next Steps
+
+For production deployment:
+
+1. Replace InMemoryDriver with persistent database (Turso, PostgreSQL)
+2. Configure environment variables in Vercel
+3. Set up monitoring and logging
+4. Enable Vercel Analytics
+5. Configure custom domain
+
+## Files Changed
+
+- Created `apps/server/` directory with 13 files
+- Updated `pnpm-lock.yaml` for new dependencies
+
+## Commit History
+
+1. `9928b2a` - Initial server app creation
+2. `2940933` - Fix TypeScript configuration and type errors
+
+## Status
+
+✅ **Complete** - Server app is ready for deployment to Vercel