feat: 完成代码逻辑错误修复和任务清理系统实现

主要更新:
- 修复了所有主要的代码逻辑错误
- 实现了完整的任务清理系统
- 添加了系统设置页面的任务清理管理功能
- 修复了API调用认证问题
- 优化了密码加密和验证机制
- 统一了错误处理模式
- 添加了详细的文档和测试工具

新增功能:
- 任务清理管理界面
- 任务归档和清理日志
- API监控和诊断工具
- 完整的测试套件

技术改进:
- 修复了Repository方法调用错误
- 统一了模型方法调用
- 改进了类型安全性
- 优化了代码结构和可维护性

demo/check_queue_status.sql

@@ -0,0 +1,61 @@
+-- 检查任务队列状态
+SELECT 
+    'task_queue' as table_name,
+    status,
+    COUNT(*) as count
+FROM task_queue 
+GROUP BY status
+UNION ALL
+SELECT 
+    'image_to_video_tasks' as table_name,
+    status,
+    COUNT(*) as count
+FROM image_to_video_tasks 
+GROUP BY status;
+
+-- 查看最近的任务
+SELECT 
+    'Recent Task Queue' as info,
+    task_id,
+    username,
+    task_type,
+    status,
+    real_task_id,
+    check_count,
+    error_message,
+    created_at
+FROM task_queue 
+ORDER BY created_at DESC 
+LIMIT 10;
+
+-- 查看最近的图生视频任务
+SELECT 
+    'Recent Image Tasks' as info,
+    task_id,
+    username,
+    status,
+    progress,
+    real_task_id,
+    error_message,
+    first_frame_url,
+    created_at
+FROM image_to_video_tasks 
+ORDER BY created_at DESC 
+LIMIT 10;
+
+-- 查看失败的任务详情
+SELECT 
+    'Failed Tasks' as info,
+    tq.task_id,
+    tq.username,
+    tq.status as queue_status,
+    tq.error_message as queue_error,
+    it.status as task_status,
+    it.error_message as task_error,
+    it.first_frame_url,
+    tq.created_at
+FROM task_queue tq
+LEFT JOIN image_to_video_tasks it ON tq.task_id = it.task_id
+WHERE tq.status = 'FAILED' OR it.status = 'FAILED'
+ORDER BY tq.created_at DESC;
+