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/components/report/designer/ReportPreviewModal.tsx

@@ -1120,7 +1120,8 @@ export function ReportPreviewModal({ isOpen, onClose }: ReportPreviewModalProps)
       const blob = new Blob([response.data], {
         type: "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
       });
-      const timestamp = new Date().toISOString().slice(0, 10);
+      const _rpd = new Date();
+      const timestamp = `${_rpd.getFullYear()}-${String(_rpd.getMonth() + 1).padStart(2, "0")}-${String(_rpd.getDate()).padStart(2, "0")}`;
       const url = window.URL.createObjectURL(blob);
       const link = document.createElement("a");
       link.href = url;