Update app.py

app.py

@@ -27,6 +27,16 @@ import requests
 from flask import Flask, request, Response
 from flask_sock import Sock
 
+import spaces
+
+
+@spaces.GPU
+def _zerogpu_startup_probe():
+    # Never called. Exists only so ZeroGPU's startup scan finds a
+    # @spaces.GPU-decorated function and doesn't fail the build - this
+    # app is plain CPU/Flask and never touches a GPU.
+    return None
+
 # ---------------------------------------------------------------------------
 # Config
 # ---------------------------------------------------------------------------