Add debug logging in chat_with_session_memory for property details

- Introduced debug print statements in `chat_with_session_memory` to log the number of properties, the first property details, and the property URLs being processed.
- These enhancements aim to improve traceability and facilitate debugging during the property listing generation process, ensuring better insights into the state of the application.

ai_chat.py

@@ -67,7 +67,9 @@ def chat_with_session_memory(state):
     )
     
     props = state.get("properties", [])
+    print(f"DEBUG: Properties in state: {len(props)} properties")
     if props:
+        print(f"DEBUG: First property: {props[0]}")
         system_message += "\nHere are some listings I found:\n"
         for p in props[:5]:
             title = p.get("title", "[no title]")
@@ -82,8 +84,12 @@ def chat_with_session_memory(state):
                 f"{price} ({ptype}); features: {features}\n"
             )
             url = p.get("listing_url")
+            print(f"DEBUG: Property URL: {url}")
             if url:
                 system_message += f"  Link: {url}\n"
+                print(f"DEBUG: Added URL to system message")
+            else:
+                print(f"DEBUG: No URL found for property")
     
     # After the listings loop, before building messages[]
     extras = set()