fix: mount Gradio directly onto FastAPI to prevent HTTP 404 conflicts on evaluator routes

Dockerfile

@@ -5,5 +5,4 @@ RUN pip install --no-cache-dir -r requirements.txt
 COPY . .
 EXPOSE 7860
 ENV PORT=7860
-# Start FastAPI on 8000 in background, then launch Gradio on 7860
-CMD ["sh", "-c", "uvicorn app.main:app --host 0.0.0.0 --port 8000 & python gradio_app.py"]
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860"]

app/main.py

@@ -127,6 +127,16 @@ async def api_health():
     except Exception as e:
         return ErrorResponse(error=str(e))
 
+import gradio as gr
+import urllib.request
+import time
+
+try:
+    from gradio_app import demo
+    app = gr.mount_gradio_app(app, demo, path="/")
+except ImportError as e:
+    print(f"Warning: Could not import gradio dashboard: {e}")
+
 def main():
     import uvicorn
-    uvicorn.run("app.main:app", host="0.0.0.0", port=8000)
+    uvicorn.run("app.main:app", host="0.0.0.0", port=7860)