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.

backend-node/src/app.ts

@@ -1,4 +1,5 @@
 import "dotenv/config";
+process.env.TZ = "Asia/Seoul";
 import "express-async-errors"; // async 라우트 핸들러의 에러를 Express 에러 핸들러로 자동 전달
 import express from "express";
 import cors from "cors";

backend-node/src/database/db.ts

@@ -66,8 +66,9 @@ export const initializePool = (): Pool => {
 
   // 연결 풀 이벤트 핸들러
   pool.on("connect", (client) => {
+    client.query("SET timezone = 'Asia/Seoul'");
     if (config.debug) {
-      console.log("✅ PostgreSQL 클라이언트 연결 생성");
+      console.log("✅ PostgreSQL 클라이언트 연결 생성 (timezone: Asia/Seoul)");
     }
   });