feat: 更新任务列表接口，增加限制参数并返回任务摘要信息

server/routers/task_router.py

@@ -10,11 +10,11 @@ tasks = APIRouter(prefix="/tasks", tags=["tasks"])
 @tasks.get("")
 async def list_tasks(
     status: str | None = Query(default=None),
+    limit: int = Query(default=100, ge=1, le=100),
     current_user: User = Depends(get_admin_user),
 ):
     """List tasks, optionally filtered by status."""
-    task_list = await tasker.list_tasks(status=status)
-    return {"tasks": task_list}
+    return await tasker.list_tasks(status=status, limit=limit)
 
 
 @tasks.get("/{task_id}")

server/services/tasker.py

@@ -6,6 +6,7 @@ from dataclasses import asdict, dataclass, field
 from pathlib import Path
 from typing import Any
 from collections.abc import Awaitable, Callable
+from collections import Counter
 
 from src.config import config
 from src.utils.logging_config import logger
@@ -137,13 +138,31 @@ class Tasker:
         logger.info("Enqueued task {} ({})", task_id, name)
         return task
 
-    async def list_tasks(self, status: str | None = None) -> list[dict[str, Any]]:
+    async def list_tasks(self, status: str | None = None, limit: int = 100) -> dict[str, Any]:
         async with self._lock:
-            tasks = list(self._tasks.values())
+            all_tasks = list(self._tasks.values())
+
+        status_counter = Counter(task.status for task in all_tasks)
+        type_counter = Counter(task.type for task in all_tasks)
+        all_tasks.sort(key=lambda item: item.created_at or utc_isoformat(), reverse=True)
+
+        tasks = all_tasks
         if status:
             tasks = [task for task in tasks if task.status == status]
-        tasks.sort(key=lambda item: item.created_at or utc_isoformat(), reverse=True)
-        return [task.to_dict() for task in tasks]
+
+        limited_tasks = tasks[: max(limit, 0)]
+
+        summary: dict[str, Any] = {
+            "total": len(all_tasks),
+            "filtered_total": len(tasks),
+            "status_counts": dict(status_counter),
+            "type_counts": dict(type_counter),
+        }
+
+        return {
+            "tasks": [task.to_dict() for task in limited_tasks],
+            "summary": summary,
+        }
 
     async def get_task(self, task_id: str) -> dict[str, Any] | None:
         async with self._lock:

test/api/test_task_router.py

@@ -33,6 +33,8 @@ async def test_admin_can_list_tasks(test_client, admin_headers):
     payload = response.json()
     assert "tasks" in payload
     assert isinstance(payload["tasks"], list)
+    assert "summary" in payload
+    assert isinstance(payload["summary"], dict)
 
 
 async def test_cancel_unknown_task_returns_client_error(test_client, admin_headers):

web/src/components/TaskCenterDrawer.vue

@@ -98,7 +98,7 @@
       <div v-else class="task-empty">
         <div class="task-empty-icon">🗂️</div>
         <div class="task-empty-title">暂无任务</div>
-        <div class="task-empty-subtitle">当你提交知识库导入或其他后台任务时，会在这里展示实时进度。</div>
+        <div class="task-empty-subtitle">当你提交知识库导入或其他后台任务时，会在这里展示实时进度（仅展示最近的 100 个任务）。</div>
       </div>
     </div>
   </a-drawer>
@@ -112,27 +112,32 @@ import { storeToRefs } from 'pinia'
 import { formatFullDateTime, formatRelative, parseToShanghai } from '@/utils/time'
 
 const taskerStore = useTaskerStore()
-const { isDrawerOpen, sortedTasks, loading, lastError } = storeToRefs(taskerStore)
+const {
+  isDrawerOpen,
+  sortedTasks,
+  loading,
+  lastError,
+  activeCount,
+  totalCount,
+  successCount,
+  failedCount
+} = storeToRefs(taskerStore)
 const isOpen = isDrawerOpen
 
 const tasks = computed(() => sortedTasks.value)
 const loadingState = computed(() => Boolean(loading.value))
 const lastErrorState = computed(() => lastError.value)
 const statusFilter = ref('all')
-const inProgressCount = computed(
-  () => tasks.value.filter((task) => ACTIVE_CLASS_STATUSES.has(task.status)).length
-)
-const completedCount = computed(() => tasks.value.filter((task) => task.status === 'success').length)
-const failedCount = computed(
-  () => tasks.value.filter((task) => FAILED_STATUSES.has(task.status)).length
-)
-const totalCount = computed(() => tasks.value.length)
+const inProgressCount = computed(() => activeCount.value || 0)
+const completedCount = computed(() => successCount.value || 0)
+const failedTaskCount = computed(() => failedCount.value || 0)
+const totalTaskCount = computed(() => totalCount.value || 0)
 const taskFilterOptions = computed(() => [
   {
     label: () =>
       h('span', { class: 'task-filter-option' }, [
         '全部',
-        h('span', { class: 'filter-count' }, totalCount.value)
+        h('span', { class: 'filter-count' }, totalTaskCount.value)
       ]),
     value: 'all'
   },
@@ -156,7 +161,7 @@ const taskFilterOptions = computed(() => [
     label: () =>
       h('span', { class: 'task-filter-option' }, [
         '失败',
-        h('span', { class: 'filter-count' }, failedCount.value)
+        h('span', { class: 'filter-count' }, failedTaskCount.value)
       ]),
     value: 'failed'
   }

web/src/stores/tasker.js

@@ -5,6 +5,14 @@ import { taskerApi } from '@/apis/tasker'
 import { parseToShanghai } from '@/utils/time'
 
 const ACTIVE_STATUSES = new Set(['pending', 'running', 'queued'])
+const FAILED_STATUSES = new Set(['failed', 'cancelled'])
+
+const createDefaultSummary = () => ({
+  total: 0,
+  filtered_total: 0,
+  status_counts: {},
+  type_counts: {}
+})
 
 const toTask = (raw = {}) => ({
   id: raw.id,
@@ -29,6 +37,7 @@ export const useTaskerStore = defineStore('tasker', () => {
   const lastError = ref(null)
   const isPolling = ref(false)
   const isDrawerOpen = ref(false)
+  const summary = ref(createDefaultSummary())
   let pollingTimer = null
 
   const sortedTasks = computed(() => {
@@ -42,7 +51,16 @@ export const useTaskerStore = defineStore('tasker', () => {
     })
   })
 
-  const activeCount = computed(() => sortedTasks.value.filter(task => ACTIVE_STATUSES.has(task.status)).length)
+  const statusCounts = computed(() => summary.value?.status_counts || {})
+
+  const activeCount = computed(() =>
+    Array.from(ACTIVE_STATUSES).reduce((count, status) => count + (statusCounts.value?.[status] || 0), 0)
+  )
+  const failedCount = computed(() =>
+    Array.from(FAILED_STATUSES).reduce((count, status) => count + (statusCounts.value?.[status] || 0), 0)
+  )
+  const successCount = computed(() => statusCounts.value?.success || 0)
+  const totalCount = computed(() => summary.value?.total || 0)
 
   function upsertTask(rawTask) {
     if (!rawTask || !rawTask.id) return
@@ -61,10 +79,15 @@ export const useTaskerStore = defineStore('tasker', () => {
     try {
       const response = await taskerApi.fetchTasks(params)
       const taskList = response?.tasks || []
+      summary.value = {
+        ...createDefaultSummary(),
+        ...(response?.summary || {})
+      }
       tasks.value = taskList.map(toTask)
     } catch (error) {
       console.error('加载任务列表失败', error)
       lastError.value = error
+      summary.value = createDefaultSummary()
     } finally {
       loading.value = false
     }
@@ -144,12 +167,18 @@ export const useTaskerStore = defineStore('tasker', () => {
     tasks.value = []
     lastError.value = null
     isDrawerOpen.value = false
+    summary.value = createDefaultSummary()
   }
 
   return {
     isDrawerOpen,
     tasks,
     sortedTasks,
+    summary,
+    statusCounts,
+    totalCount,
+    successCount,
+    failedCount,
     loading,
     lastError,
     activeCount,