Add debug info and improve secrets handling

src/streamlit_app.py

@@ -42,12 +42,19 @@ try:
     # Try multiple ways to get the API key
     api_key = None
     
-    # Try environment variable
+    # Try environment variable first
     api_key = os.getenv("ANTHROPIC_KEY")
     
     # Try Streamlit secrets if env var not found
     if not api_key and hasattr(st, 'secrets'):
-        api_key = st.secrets.get("ANTHROPIC_KEY")
+        try:
+            api_key = st.secrets["ANTHROPIC_KEY"]  # Try direct dictionary access
+        except (KeyError, AttributeError):
+            pass  # Secret not found, continue to error message
+    
+    # Debug info (will be removed in production)
+    st.write("Available secrets:", [k for k in st.secrets.keys()] if hasattr(st, 'secrets') else "No secrets available")
+    st.write("Environment variables:", [k for k in os.environ.keys() if not k.startswith("_")])
     
     if not api_key:
         st.error("""