Add Docker deployment for ZimaOS

- Updated Dockerfile for local storage deployment (removed Firebase dependencies)
- Created docker-compose.yml with persistent data volumes
- Added deploy.sh script for automated deployment
- Created DEPLOYMENT.md with ZimaOS deployment guide
- Added .env.example for configuration template
- Updated .gitignore to protect sensitive data
- Fixed package.json to use port 7654 in production
- Cleared all test user data for fresh deployment
- Updated README with deployment section

package.json

@@ -5,7 +5,7 @@
   "scripts": {
     "dev": "next dev -p 7654",
     "build": "next build",
-    "start": "next start",
+    "start": "next start -p 7654",
     "lint": "eslint"
   },
   "dependencies": {