Fix production deadlock

shared/database/base.py

@@ -246,6 +246,33 @@ class DatabaseManager:
     def __repr__(self) -> str:
         return f"DatabaseManager(service='{self.service_name}', type='{self._get_database_type()}')"
 
+    async def execute(self, query: str, *args, **kwargs):
+        """
+        Execute a raw SQL query with proper session management
+        Note: Use this method carefully to avoid transaction conflicts
+        """
+        from sqlalchemy import text
+        
+        # Use a new session context to avoid conflicts with existing sessions
+        async with self.get_session() as session:
+            try:
+                # Convert query to SQLAlchemy text object if it's a string
+                if isinstance(query, str):
+                    query = text(query)
+                
+                result = await session.execute(query, *args, **kwargs)
+                # For UPDATE/DELETE operations that need to be committed
+                if query.text.strip().upper().startswith(('UPDATE', 'DELETE', 'INSERT')):
+                    await session.commit()
+                
+                return result
+            except Exception as e:
+                # Only rollback if it was a modifying operation
+                if isinstance(query, str) and query.strip().upper().startswith(('UPDATE', 'DELETE', 'INSERT')):
+                    await session.rollback()
+                logger.error("Database execute failed", error=str(e))
+                raise
+
 
 # ===== CONVENIENCE FUNCTIONS =====