fix(frontend): 移除运行时演示数据并接入真实后端状态

frontend/src/services/taskService.ts

@@ -1,5 +1,5 @@
 import apiClient from './apiClient'
-import type { ApiTask, OperationResponse, PageMeta, TaskItem, TaskStatus, TaskPriority } from '@/contracts'
+import type { ApiTask, OperationResponse, PageMeta, TaskItem, TaskStatus } from '@/contracts'
 
 function toTask(task: ApiTask): TaskItem {
   return {
@@ -7,10 +7,8 @@ function toTask(task: ApiTask): TaskItem {
     title: task.title,
     description: task.description,
     status: task.status,
-    priority: 'medium',
     due_date: task.due_at ?? undefined,
     note_id: task.note_id ?? undefined,
-    source: 'user',
     created_at: task.created_at,
     updated_at: task.updated_at,
   }
@@ -60,67 +58,3 @@ export async function updateTask(
 export async function deleteTask(taskId: string): Promise<OperationResponse> {
   return apiClient.delete(`/api/tasks/${taskId}`)
 }
-
-export const mockTasks: TaskItem[] = [
-  {
-    task_id: 't-1',
-    title: '完成红黑树章节复习',
-    description: '整理插入、删除操作的所有情况，准备期末复习',
-    status: 'todo',
-    priority: 'high',
-    due_date: '2026-08-30T23:59:00Z',
-    note_id: 'n-rbt',
-    note_title: '红黑树',
-    source: 'user',
-    created_at: '2026-08-20T10:00:00Z',
-    updated_at: '2026-08-25T14:30:00Z',
-  },
-  {
-    task_id: 't-2',
-    title: '理解死锁的银行家算法',
-    description: '推导银行家算法的安全性检查过程',
-    status: 'in_progress',
-    priority: 'medium',
-    note_id: 'n-deadlock',
-    note_title: '死锁',
-    source: 'agent',
-    created_at: '2026-08-22T09:00:00Z',
-    updated_at: '2026-08-24T16:00:00Z',
-  },
-  {
-    task_id: 't-3',
-    title: 'TCP 三次握手与四次挥手',
-    description: '',
-    status: 'done',
-    priority: 'high',
-    note_id: 'n-tcp',
-    note_title: 'TCP_IP',
-    source: 'user',
-    created_at: '2026-08-15T08:00:00Z',
-    updated_at: '2026-08-18T20:00:00Z',
-  },
-  {
-    task_id: 't-4',
-    title: 'HTTP 状态码整理',
-    description: '整理常见 HTTP 状态码及含义',
-    status: 'todo',
-    priority: 'low',
-    note_id: 'n-http',
-    note_title: 'HTTP协议',
-    source: 'note',
-    created_at: '2026-08-10T10:00:00Z',
-    updated_at: '2026-08-10T10:00:00Z',
-  },
-  {
-    task_id: 't-5',
-    title: '链表操作实现练习',
-    description: '实现单链表和双向链表的基本操作',
-    status: 'todo',
-    priority: 'medium',
-    note_id: 'n-slist',
-    note_title: '单链表',
-    source: 'agent',
-    created_at: '2026-08-23T11:00:00Z',
-    updated_at: '2026-08-23T11:00:00Z',
-  },
-]