fix: Correctly handle query results in trading plan retrieval functions

src/trading/trading_plan.py

@@ -209,10 +209,12 @@ def get_trading_plan(plan_id: int) -> Optional[TradingPlan]:
             SELECT * FROM trading_plans WHERE id = %(id)s
         """, {'id': plan_id})
         
-        if not result:
+        rows = result.result_rows
+        
+        if not rows:
             return None
             
-        plan = result[0]
+        plan = rows[0]
         return TradingPlan(
             id=plan[0],
             plan_name=plan[1],
@@ -267,7 +269,7 @@ def get_all_trading_plans(status: Optional[PlanStatus] = None) -> List[TradingPl
             query += " ORDER BY updated_at DESC"
             
             results = client.query(query, params)
-            rows = results.result_rows  # Ensure this is the correct method to access rows
+            rows = results.result_rows
             return [TradingPlan(
                 id=row[0],
                 plan_name=row[1],