Fix: Add explicit demo verification and export for Spaces

app.py

@@ -1076,6 +1076,24 @@ if demo is None or not isinstance(demo, (gr.Blocks, gr.Interface)):
         Please check the logs for details.
         """)
 
+# CRITICAL FOR SPACES: Explicitly verify and expose the demo
+# Make sure it's accessible at module level
+if IS_SPACES:
+    logger.info("=" * 80)
+    logger.info("SPACES MODE: Final demo verification")
+    logger.info(f"Demo type: {type(demo)}")
+    logger.info(f"Demo is None: {demo is None}")
+    logger.info(f"Demo is valid: {isinstance(demo, (gr.Blocks, gr.Interface))}")
+    logger.info("=" * 80)
+    
+    # Explicitly set it again to ensure it's at module level
+    if isinstance(demo, (gr.Blocks, gr.Interface)):
+        # Make sure demo is accessible
+        __all__ = ['demo']  # Explicitly export demo
+        logger.info("Demo is ready for Spaces")
+    else:
+        logger.error("CRITICAL: Demo is not valid even after all checks!")
+
 # For local execution only (not on Spaces)
 if __name__ == "__main__":
     if not IS_SPACES: