Upload app.py with huggingface_hub

app.py

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+"""
+HuggingFace Spaces entry point for ChatCal.ai
+v0.3.1 - Corrected for HF deployment
+"""
+import os
+import uvicorn
+
+# Set HF-specific environment variables
+os.environ.setdefault("SESSION_BACKEND", "jwt")
+os.environ.setdefault("APP_ENV", "production")
+os.environ.setdefault("PORT", "7860")
+
+if __name__ == "__main__":
+    # Change to the chatcal-ai directory where the app module is
+    os.chdir('/app/chatcal-ai')
+    
+    # Run uvicorn with the correct module path
+    uvicorn.run(
+        "app.api.main:app",
+        host="0.0.0.0",
+        port=7860,
+        reload=False
+    )