Fix: Restore upsert_mentor method

services/recommendation_service.py

@@ -21,7 +21,53 @@ class RecommendationService:
         self.settings = get_settings()
         self.data_service = DataService()
     
-    # ... upsert_mentor ...
+    def upsert_mentor(
+        self,
+        mentor_data: Dict[str, Any]
+    ) -> bool:
+        try:
+            mentor_text = build_mentor_text(mentor_data)
+            embedding = self.embedding_service.encode(mentor_text, is_query=False)
+            
+            def safe_float(value, default=0.0):
+                if value is None:
+                    return default
+                try:
+                    return float(value)
+                except (ValueError, TypeError):
+                    return default
+            
+            def safe_int(value, default=0):
+                if value is None:
+                    return default
+                try:
+                    return int(value)
+                except (ValueError, TypeError):
+                    return default
+            
+            metadata = {
+                "mentor_id": str(mentor_data["mentor_id"]),
+                "rating": safe_float(mentor_data.get("rating"), 0.0),
+                "total_ratings": safe_int(mentor_data.get("total_ratings"), 0),
+                "session_count": safe_int(mentor_data.get("session_count"), 0),
+                "career_id": safe_int(mentor_data.get("career_id")) if mentor_data.get("career_id") else None,
+                "status": str(mentor_data.get("status") or "ACTIVATED"),
+                "mentor_text": mentor_text
+            }
+            
+            if mentor_data.get("skill_ids"):
+                metadata["skill_ids"] = [str(int(id)) for id in mentor_data["skill_ids"]]
+            if mentor_data.get("domain_ids"):
+                metadata["domain_ids"] = [str(int(id)) for id in mentor_data["domain_ids"]]
+            
+            return self.pinecone_service.upsert_mentor(
+                mentor_id=str(mentor_data["mentor_id"]),
+                vector=embedding,
+                metadata=metadata
+            )
+        except Exception as e:
+            logger.error(f"Failed to upsert mentor: {str(e)}")
+            raise
 
     def recommend_mentors(
         self,