fix: Correct hidden imports in backend build.py

- Change app.auth to app.routers.auth (correct path)
- Change app.routers.dify to app.routers.ai (actual module name)
- Change app.routers.excel to app.routers.export (actual module name)
- Remove app.routers.health (doesn't exist)
- Add app.models and app.models.schemas

Also add database credentials to config.json for embedded mode.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/build.py

@@ -61,13 +61,13 @@ def build():
         "--hidden-import", "app.main",
         "--hidden-import", "app.config",
         "--hidden-import", "app.database",
-        "--hidden-import", "app.auth",
         "--hidden-import", "app.routers",
         "--hidden-import", "app.routers.auth",
         "--hidden-import", "app.routers.meetings",
-        "--hidden-import", "app.routers.dify",
-        "--hidden-import", "app.routers.health",
-        "--hidden-import", "app.routers.excel",
+        "--hidden-import", "app.routers.ai",
+        "--hidden-import", "app.routers.export",
+        "--hidden-import", "app.models",
+        "--hidden-import", "app.models.schemas",
         # Collect package data
         "--collect-data", "pydantic",
         "--collect-data", "uvicorn",