Fix: add startup delay for MCP race condition

app.py

@@ -103,4 +103,12 @@ async def extract_slidepack(file: UploadFile):
     return analyze_slidepack(type("File", (object,), {"name": path}))
 
 if __name__ == "__main__":
-    demo.launch(mcp_server=True, server_name="0.0.0.0", server_port=7860)
+    import asyncio
+
+    async def delayed_startup():
+        print("⏳ Waiting before MCP launch to avoid race condition...")
+        await asyncio.sleep(3)  # wait 3 seconds to allow models to finish loading
+        print("🚀 Launching with MCP support now.")
+        demo.launch(mcp_server=True)
+
+    asyncio.run(delayed_startup())