更新系统页面和更新功能

- 更新 admin-frontend 系统页面和更新 API
- 更新 routes 和 services 中的更新逻辑
- 重新构建前端静态资源

services/tasks.py

@@ -79,6 +79,7 @@ class TaskScheduler:
         self._pending = []  # heap: (priority, submitted_at, seq, task)
         self._pending_by_account = {}  # {account_id: task}
         self._seq = 0
+        self._known_account_ids = set()
 
         self._running_global = 0
         self._running_by_user = {}  # {user_id: running_count}
@@ -143,6 +144,18 @@ class TaskScheduler:
             except Exception:
                 pass
 
+        # 最后兜底：清理本调度器提交过的 active_task，避免测试/重启时被“任务已在运行中”误拦截
+        try:
+            with self._cond:
+                known_ids = set(self._known_account_ids) | set(self._pending_by_account.keys())
+                self._pending.clear()
+                self._pending_by_account.clear()
+                self._cond.notify_all()
+            for account_id in known_ids:
+                safe_remove_task(account_id)
+        except Exception:
+            pass
+
     def update_limits(self, max_global: int = None, max_per_user: int = None, max_queue_size: int = None):
         """动态更新并发/队列上限（不影响已在运行的任务）"""
         with self._cond:
@@ -215,6 +228,7 @@ class TaskScheduler:
                 done_callback=done_callback,
             )
             self._pending_by_account[account_id] = task
+            self._known_account_ids.add(account_id)
             priority = 0 if is_vip else 1
             heapq.heappush(self._pending, (priority, task.submitted_at, task.seq, task))
             self._cond.notify_all()