fix: Login 500, DB schema sync, Dashboard missing data, Major Refactoring

api.hyungi.net/services/auth.service.js

@@ -7,7 +7,7 @@ const { getDb } = require('../dbPool');
 const recordLoginHistory = async (userId, success, ipAddress, userAgent, failureReason = null) => {
   try {
     const db = await getDb();
-    await db.execute(
+    await db.query(
       `INSERT INTO login_logs (user_id, login_time, ip_address, user_agent, login_status, failure_reason) 
        VALUES (?, NOW(), ?, ?, ?, ?)`,
       [userId, ipAddress || 'unknown', userAgent || 'unknown', success ? 'success' : 'failed', failureReason]
@@ -40,14 +40,14 @@ const loginService = async (username, password, ipAddress, userAgent) => {
     const isValid = await bcrypt.compare(password, user.password);
     if (!isValid) {
       console.log(`[로그인 실패] 비밀번호 불일치: ${username}`);
-      
+
       // 모델 함수를 사용하여 로그인 실패 처리
       await userModel.incrementFailedLoginAttempts(user.user_id);
 
       if (user.failed_login_attempts >= 4) {
         await userModel.lockUserAccount(user.user_id);
       }
-      
+
       await recordLoginHistory(user.user_id, false, ipAddress, userAgent, 'invalid_password');
       return { success: false, status: 401, error: '아이디 또는 비밀번호가 올바르지 않습니다.' };
     }