backend/main.py

import os
import sys

# Ensure project root (/app in Docker, the repo root locally) is on sys.path
_ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))
if _ROOT not in sys.path:
    sys.path.insert(0, _ROOT)

import uvicorn

if __name__ == "__main__":
    uvicorn.run(
        "server.app:app",
        host="0.0.0.0",
        port=int(os.getenv("PORT", 8000)),
        reload=False,
        log_level="info",
    )