chore: update .gitignore and remove quick insert options from button configurations

- Added new entries to .gitignore for multi-agent MCP task queue and related rules.
- Removed "즉시 저장" (quick insert) options from the ScreenSettingModal and BasicTab components to streamline button configurations.
- Cleaned up unused event options in the V2ButtonConfigPanel to enhance clarity and maintainability.

These changes aim to improve project organization and simplify the user interface by eliminating redundant options.

frontend/lib/registry/components/date-input/DateInputComponent.tsx

@@ -53,7 +53,8 @@ export const DateInputComponent: React.FC<DateInputComponentProps> = ({
   // 자동생성 로직
   useEffect(() => {
     if (finalAutoGeneration?.enabled) {
-      const today = new Date().toISOString().split("T")[0]; // YYYY-MM-DD
+      const n = new Date();
+      const today = `${n.getFullYear()}-${String(n.getMonth() + 1).padStart(2, "0")}-${String(n.getDate()).padStart(2, "0")}`;
       setAutoGeneratedValue(today);
 
       // 인터랙티브 모드에서 폼 데이터에도 설정