Fix: Add import error handling to prevent module load failure

app.py

@@ -28,8 +28,20 @@ import logging
 import textstat
 import torch
 
-# Import from bot.py
-from bot import RAGBot, parse_args, Chunk
+# Import from bot.py - wrap in try/except to handle import errors gracefully
+try:
+    from bot import RAGBot, parse_args, Chunk
+    BOT_AVAILABLE = True
+except ImportError as e:
+    logger.error(f"Failed to import bot module: {e}")
+    BOT_AVAILABLE = False
+    # Create dummy classes so the module can still load
+    class RAGBot:
+        pass
+    class Chunk:
+        pass
+    def parse_args():
+        return None
 
 # Set up logging first (before any logger usage)
 logging.basicConfig(level=logging.INFO)