Update Dockerfile

Dockerfile

@@ -14,6 +14,24 @@ COPY --chown=user requirements.txt .
 RUN pip install --no-cache-dir --upgrade pip \
  && pip install --no-cache-dir -r requirements.txt
 
+# Patch Gradio 4.44.x stop_event bug in routes.py
+RUN python3 - << 'PYEOF'
+import site, pathlib
+
+# Find gradio routes.py
+for p in site.getsitepackages():
+    f = pathlib.Path(p) / "gradio" / "routes.py"
+    if f.exists():
+        src = f.read_text()
+        # Patch: guard stop_event before calling .wait()
+        old = "await app.stop_event.wait()"
+        new = "await app.stop_event.wait() if app.stop_event else None"
+        if old in src:
+            f.write_text(src.replace(old, new))
+            print(f"Patched {f}")
+        break
+PYEOF
+
 COPY --chown=user . .
 
 EXPOSE 7860