Initial scaffold: FastAPI backend + React frontend + Docker Compose

- Backend: FastAPI with SQLite, clip CRUD, health check
- Frontend: React + Vite + TypeScript + Tailwind, dark theme
- Components: Generator, Gallery, Player
- Docker: Compose setup for backend + frontend
- Architecture docs in Palace KB

backend/requirements.txt

@@ -0,0 +1,6 @@
+fastapi==0.115.0
+uvicorn[standard]==0.32.0
+httpx==0.27.0
+aiosqlite==0.20.0
+pydantic==2.9.0
+python-multipart==0.0.12