Update Dockerfile

Dockerfile

@@ -28,5 +28,5 @@ COPY --chown=user . /code
 EXPOSE 7860
 
 # 8. Start the API
-# app.main:app points to 'app/main.py' file and 'app' object
-CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860"]
+# CRITICAL FIX: "main:app" matches your file structure where main.py is at the root
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]