Support both ANTHROPIC_API_KEY and anthropic_key secret names

app.py

@@ -19,7 +19,12 @@ from typing import List, Optional
 app = FastAPI(title="Tend & Send ARI Prototype")
 
 # Get API key from environment (set as HF Space secret)
-ANTHROPIC_API_KEY = os.environ.get("ANTHROPIC_API_KEY", "")
+# Check multiple possible secret names for flexibility
+ANTHROPIC_API_KEY = (
+    os.environ.get("ANTHROPIC_API_KEY") or
+    os.environ.get("anthropic_key") or
+    ""
+)
 
 
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