极速模式支持多张图协同出图，移除单张限制

@@ -114,17 +114,48 @@ class TaskQueueManager(QObject):
         self.logger.info("TaskQueueManager 初始化完成")
         self.logger.info("TaskQueueManager 初始化完成")
 
 
     def _load_db_config(self):
     def _load_db_config(self):
-        """加载数据库配置"""
+        """加载数据库配置（与 image_generator.py 相同的多路径逻辑）"""
         try:
         try:
             import json
             import json
+            import sys
+            import os
+            import platform
             from pathlib import Path
             from pathlib import Path
-            config_file = Path("config.json")
-            if config_file.exists():
-                with open(config_file, 'r', encoding='utf-8') as f:
-                    config = json.load(f)
-                    self._db_config = config.get('db_config')
-                    if self._db_config:
-                        self.logger.info("数据库配置已加载")
+
+            config_paths = []
+
+            # 1. 用户配置目录（打包后优先）
+            if getattr(sys, 'frozen', False):
+                system = platform.system()
+                if system == 'Darwin':
+                    user_config = Path.home() / 'Library' / 'Application Support' / 'ZB100ImageGenerator' / 'config.json'
+                elif system == 'Windows':
+                    user_config = Path(os.getenv('APPDATA', Path.home())) / 'ZB100ImageGenerator' / 'config.json'
+                else:
+                    user_config = Path.home() / '.config' / 'zb100imagegenerator' / 'config.json'
+                config_paths.append(user_config)
+
+                # 2. 可执行文件所在目录
+                config_paths.append(Path(sys.executable).parent / 'config.json')
+
+                # 3. PyInstaller _MEIPASS 目录
+                if hasattr(sys, '_MEIPASS'):
+                    config_paths.append(Path(sys._MEIPASS) / 'config.json')
+
+            # 4. 当前工作目录（开发模式）
+            config_paths.append(Path('config.json'))
+
+            # 尝试所有路径
+            for config_file in config_paths:
+                if config_file.exists():
+                    with open(config_file, 'r', encoding='utf-8') as f:
+                        config = json.load(f)
+                        self._db_config = config.get('db_config')
+                        if self._db_config:
+                            self.logger.info(f"数据库配置已加载: {config_file}")
+                            return
+
+            self.logger.warning("未找到 config.json，日志记录将被禁用")
         except Exception as e:
         except Exception as e:
             self.logger.warning(f"加载数据库配置失败: {e}")
             self.logger.warning(f"加载数据库配置失败: {e}")