fix: 认证系统、登录兼容性、运行时配置、钉钉通知及代码清理

- 实现 JWT 认证中间件，保护配置管理和任务删除接口
- 修复 ConfigView 登录按钮（Vue 3 inject 替代 $root）
- 页面刷新时通过 /api/auth/me 校验 token 有效性
- max_concurrent_builds 修改后运行时即时生效
- 实现钉钉 webhook 通知（构建成功/失败自动推送）
- 删除未使用的 useWebSocket composable
- log_streamer 使用 LOG_QUEUE_MAX_SIZE 配置常量

backend/services/build_service.py

@@ -309,6 +309,11 @@ async def run_build_task(task_id: str):
                 if task.oss_url:
                     await log_streamer.emit(task_id, f"下载链接: {task.oss_url}")
 
+                # 钉钉通知
+                from .notification import notify_build_result
+                dingtalk = full_config.get("upload", {}).get("dingtalk", {})
+                await notify_build_result(task, dingtalk)
+
             # 带超时执行打包
             await asyncio.wait_for(_do_build(), timeout=timeout_seconds)
 
@@ -330,6 +335,11 @@ async def run_build_task(task_id: str):
                 await log_streamer.emit(task_id, f"临时文件保留在: {build_dir}")
                 await asyncio.to_thread(log_streamer.save_log, task_id, build_dir)
 
+            # 钉钉通知
+            from .notification import notify_build_result
+            dingtalk = full_config.get("upload", {}).get("dingtalk", {})
+            await notify_build_result(task, dingtalk)
+
         except asyncio.CancelledError:
             await asyncio.to_thread(_db_update, db, task,
                                     status="cancelled", completed_at=datetime.utcnow())
@@ -362,6 +372,11 @@ async def run_build_task(task_id: str):
                 await log_streamer.emit(task_id, f"临时文件保留在: {build_dir}")
                 await asyncio.to_thread(log_streamer.save_log, task_id, build_dir)
 
+            # 钉钉通知
+            from .notification import notify_build_result
+            dingtalk = full_config.get("upload", {}).get("dingtalk", {})
+            await notify_build_result(task, dingtalk)
+
         finally:
             log_streamer.complete(task_id)