Update streamlit_app.py

streamlit_app.py

@@ -15,6 +15,7 @@ from dotenv import load_dotenv
 
 load_dotenv()
 
+# Optional phi/GenAI imports — gracefully degrade if not present
 try:
     from phi.agent import Agent
     from phi.model.google import Gemini
@@ -435,7 +436,6 @@ if generate_now and not st.session_state.get("busy"):
                         # Try 2: model-based interface (GenerativeModel / model.generate_content)
                         if response is None:
                             try:
-                                # prefer GenerativeModel if present
                                 if hasattr(genai, "GenerativeModel"):
                                     model_obj = genai.GenerativeModel(model=model_used)
                                     if hasattr(model_obj, "generate_content"):
@@ -458,7 +458,7 @@ if generate_now and not st.session_state.get("busy"):
                         if response is None:
                             raise RuntimeError("No supported generate method found on google.generativeai; check SDK version.")
                     
-                        # Defensive normalization of response -> outputs list (keeps your existing extraction logic)
+                        # Defensive normalization of response -> outputs list
                         outputs = []
                         if response is None:
                             outputs = []
@@ -483,7 +483,7 @@ if generate_now and not st.session_state.get("busy"):
                         if not isinstance(outputs, list):
                             outputs = list(outputs) if outputs else []
                     
-                        # extract text pieces safely (identical to your prior logic)
+                        # extract text pieces safely
                         text_pieces = []
                         for item in outputs:
                             if item is None: