fix: remove eslint-disable-line for unregistered react-hooks/exhaustive-deps rule

The project's ESLint flat config does not include the react-hooks plugin,
so referencing its rules in eslint-disable comments causes a "rule not found"
error. Replace with a plain comment preserving the intent.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/dashboard/app/components/MissionInterviewModal.tsx

@@ -356,7 +356,7 @@ export function MissionInterviewModal({
         setMissionGoal(persisted);
       }
     }
-  }, [isOpen]); // eslint-disable-line react-hooks/exhaustive-deps
+  }, [isOpen]); // intentional: only re-run on open/close, not on every keystroke
 
   // Auto-start when initialGoal prop is provided
   useEffect(() => {