fix: allow all origins for CORS on HF Spaces

backend/main.py

@@ -32,7 +32,7 @@ def _safe_int(val) -> int | None:
 app = FastAPI(title="Traffic Incident Summarization API", version="0.4.0")
 app.add_middleware(
     CORSMiddleware,
-    allow_origins=["http://localhost:5173", "http://127.0.0.1:5173"],
+        allow_origins=["*"],
     allow_credentials=True,
     allow_methods=["*"],
     allow_headers=["*"],