Fix static file serving by including dist directory

- Remove dist/ from .gitignore to include build artifacts
- Add complete dist directory with built frontend assets
- This ensures static files are available for deployment
- Fixes 404 errors on Koyeb deployment

.gitignore

@@ -3,7 +3,7 @@ node_modules/
 .pnpm-store/
 
 # Build outputs
-dist/
+# dist/ - Keep dist for deployment
 build/
 
 # Environment variables