feat: modpacks 테이블 초기화 함수 추가

- db.js: initModpacksTable() 함수 추가
- server.js: 서버 시작 시 테이블 초기화 호출
- 스키마: id, name, version, minecraft_version, mod_loader, changelog, file_key, file_size, contents_json, created_at, updated_at

backend/lib/db.js

@@ -78,6 +78,33 @@ const setIconCache = (key, value) => {
   iconsCache[key] = value;
 };
 
+/**
+ * 모드팩 테이블 초기화
+ */
+async function initModpacksTable() {
+  try {
+    await dbPool.query(`
+      CREATE TABLE IF NOT EXISTS modpacks (
+        id INT AUTO_INCREMENT PRIMARY KEY,
+        name VARCHAR(255) NOT NULL,
+        version VARCHAR(50) NOT NULL,
+        minecraft_version VARCHAR(20),
+        mod_loader VARCHAR(50),
+        changelog TEXT,
+        file_key VARCHAR(500) NOT NULL,
+        file_size BIGINT DEFAULT 0,
+        contents_json LONGTEXT,
+        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+        updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+        UNIQUE KEY unique_version (name, version)
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
+    `);
+    console.log("[DB] modpacks 테이블 초기화 완료");
+  } catch (error) {
+    console.error("[DB] modpacks 테이블 초기화 실패:", error.message);
+  }
+}
+
 export {
   dbPool,
   dbPool as pool,
@@ -86,4 +113,5 @@ export {
   getIcons,
   getGamerules,
   setIconCache,
+  initModpacksTable,
 };

backend/server.js

@@ -6,7 +6,7 @@ import { fileURLToPath } from "url";
 import session from "express-session";
 
 // 모듈 import
-import { loadTranslations } from "./lib/db.js";
+import { loadTranslations, initModpacksTable } from "./lib/db.js";
 import {
   MOD_API_URL,
   refreshData,
@@ -171,4 +171,7 @@ httpServer.listen(PORT, async () => {
 
   // 번역 데이터 로드
   await loadTranslations();
+
+  // 모드팩 테이블 초기화
+  await initModpacksTable();
 });