fix: add Trek product model names to keywords and debug logging

- Add MARLIN, MADONE, FUEL, DOMANE etc. to product_keywords
- "marlin 4" now properly detected as product query
- Add debug logging to track product query detection
- Fix issue where model names weren't triggering Combined API

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

app.py

@@ -971,7 +971,10 @@ def process_whatsapp_message_with_memory(user_message, phone_number):
         if not product_found_improved:
             # Check if message seems to be asking about products
             product_keywords = ['fiyat', 'kaç', 'stok', 'var mı', 'mevcut', 'bisiklet', 'bike', 
-                              'trek', 'model', 'beden', 'renk', 'mağaza', 'nerede', 'hangi']
+                              'trek', 'model', 'beden', 'renk', 'mağaza', 'nerede', 'hangi',
+                              'marlin', 'madone', 'fuel', 'domane', 'slash', 'remedy', 'session', 'procaliber',
+                              'roscoe', 'supercommuter', 'allant', 'verve', 'dual sport', 'fx', 'checkpoint',
+                              'émonda', 'speed concept', 'boone', 'crockett', 'stache', 'farley']
             
             # Common non-product responses
             non_product_responses = ['süper', 'harika', 'güzel', 'teşekkür', 'tamam', 'olur',
@@ -980,16 +983,24 @@ def process_whatsapp_message_with_memory(user_message, phone_number):
             is_product_query = False
             lower_message = user_message.lower()
             
+            logger.info(f"🔍 Product query detection for: '{user_message}'")
+            logger.info(f"🔤 Lower message: '{lower_message}'")
+            
             # Check if it's likely a product query
             if any(keyword in lower_message for keyword in product_keywords):
                 is_product_query = True
+                logger.info(f"✅ Product query detected via keywords")
             # Check if it's NOT a simple response
             elif lower_message not in non_product_responses and len(lower_message.split()) > 1:
                 # Multi-word queries might be product searches
                 is_product_query = True
+                logger.info(f"✅ Product query detected via multi-word rule")
             # Single short words are usually not products
             elif len(lower_message.split()) == 1 and len(lower_message) < 6:
                 is_product_query = False
+                logger.info(f"❌ Product query rejected - single short word")
+            
+            logger.info(f"🎯 Final is_product_query: {is_product_query}")
             
             if is_product_query:
                 # SADECE Combined API kullan