Debug: list files to find index.html

Fix: absolute path for FileResponse, skip pip if deps exist

Clean rewrite: ensure_tables() before every DB op

Create tables before every DB operation

Fix: Create tables sync before async engine

Add error logging to submit endpoint

Fix: Define FastAPI app before routes

Serve frontend HTML at root path

Fix: Create DB tables at import time for Gradio SDK

Add error handling to list_videos endpoint

Fix video list endpoint datetime serialization

Switch to Gradio/Python SDK (no Docker)