feat: Provider 签到任务时间可配置

- 前端添加签到时间选择器（HH:MM 格式）
- 后端支持动态更新调度器执行时间
- 新增 reschedule_cron_job 方法支持运行时重调度

frontend/src/views/admin/SystemSettings.vue

@@ -487,8 +487,17 @@
         title="定时任务"
         description="配置系统后台定时任务"
       >
-        <div class="flex items-center gap-6">
+        <template #actions>
-          <div class="flex items-center gap-2">
+          <Button
+            size="sm"
+            :disabled="checkinTimeLoading || !hasCheckinTimeChanged"
+            @click="handleCheckinTimeSave"
+          >
+            {{ checkinTimeLoading ? '保存中...' : '保存' }}
+          </Button>
+        </template>
+        <div class="grid grid-cols-1 md:grid-cols-2 gap-6">
+          <div class="flex items-center space-x-2">
             <Switch
               id="enable-provider-checkin"
               :model-value="systemConfig.enable_provider_checkin"
@@ -497,15 +506,63 @@
             <div>
               <Label
                 for="enable-provider-checkin"
-                class="text-sm cursor-pointer"
+                class="cursor-pointer"
               >
                 启用 Provider 自动签到
               </Label>
               <p class="text-xs text-muted-foreground">
-                每天凌晨 1:05 执行
+                自动执行已配置 Provider 的签到任务
               </p>
             </div>
           </div>
+
+          <div v-if="systemConfig.enable_provider_checkin">
+            <Label class="block text-sm font-medium">
+              执行时间
+            </Label>
+            <div class="mt-1 flex items-center gap-2">
+              <Select
+                v-model:open="checkinHourSelectOpen"
+                :model-value="checkinHour"
+                @update:model-value="(val: string) => updateCheckinTime(val, checkinMinute)"
+              >
+                <SelectTrigger class="w-20">
+                  <SelectValue placeholder="时" />
+                </SelectTrigger>
+                <SelectContent>
+                  <SelectItem
+                    v-for="h in 24"
+                    :key="h - 1"
+                    :value="String(h - 1).padStart(2, '0')"
+                  >
+                    {{ String(h - 1).padStart(2, '0') }}
+                  </SelectItem>
+                </SelectContent>
+              </Select>
+              <span class="text-muted-foreground">:</span>
+              <Select
+                v-model:open="checkinMinuteSelectOpen"
+                :model-value="checkinMinute"
+                @update:model-value="(val: string) => updateCheckinTime(checkinHour, val)"
+              >
+                <SelectTrigger class="w-20">
+                  <SelectValue placeholder="分" />
+                </SelectTrigger>
+                <SelectContent>
+                  <SelectItem
+                    v-for="m in 60"
+                    :key="m - 1"
+                    :value="String(m - 1).padStart(2, '0')"
+                  >
+                    {{ String(m - 1).padStart(2, '0') }}
+                  </SelectItem>
+                </SelectContent>
+              </Select>
+            </div>
+            <p class="mt-1 text-xs text-muted-foreground">
+              每天定时执行（24小时制）
+            </p>
+          </div>
         </div>
       </CardSection>
 
@@ -924,6 +981,7 @@ interface SystemConfig {
   audit_log_retention_days: number
   // 定时任务
   enable_provider_checkin: boolean
+  provider_checkin_time: string
 }
 
 const basicConfigLoading = ref(false)
@@ -980,6 +1038,7 @@ const systemConfig = ref<SystemConfig>({
   audit_log_retention_days: 30,
   // 定时任务
   enable_provider_checkin: true,
+  provider_checkin_time: '01:05',
 })
 
 // 原始配置值（用于检测变动）
@@ -1087,6 +1146,7 @@ async function loadSystemConfig() {
       'audit_log_retention_days',
       // 定时任务
       'enable_provider_checkin',
+      'provider_checkin_time',
     ]
 
     for (const key of configs) {
@@ -1101,6 +1161,8 @@ async function loadSystemConfig() {
     }
     // 保存原始值用于变动检测
     originalConfig.value = JSON.parse(JSON.stringify(systemConfig.value))
+    // 初始化签到时间的原始值（用于回滚）
+    previousCheckinTime.value = systemConfig.value.provider_checkin_time
   } catch (err) {
     error('加载系统配置失败')
     log.error('加载系统配置失败:', err)
@@ -1243,6 +1305,61 @@ async function handleProviderCheckinToggle(enabled: boolean) {
   }
 }
 
+// 签到时间相关
+const previousCheckinTime = ref('')
+const checkinTimeLoading = ref(false)
+const checkinHourSelectOpen = ref(false)
+const checkinMinuteSelectOpen = ref(false)
+
+// 解析签到时间的小时和分钟
+const checkinHour = computed(() => {
+  const time = systemConfig.value.provider_checkin_time
+  if (!time || !time.includes(':')) return '01'
+  return time.split(':')[0]
+})
+
+const checkinMinute = computed(() => {
+  const time = systemConfig.value.provider_checkin_time
+  if (!time || !time.includes(':')) return '05'
+  return time.split(':')[1]
+})
+
+// 更新签到时间
+function updateCheckinTime(hour: string, minute: string) {
+  systemConfig.value.provider_checkin_time = `${hour}:${minute}`
+}
+
+// 检测签到时间是否有变化
+const hasCheckinTimeChanged = computed(() => {
+  return systemConfig.value.provider_checkin_time !== previousCheckinTime.value
+})
+
+async function handleCheckinTimeSave() {
+  const newTime = systemConfig.value.provider_checkin_time
+
+  // 验证时间格式
+  if (!newTime || !/^\d{2}:\d{2}$/.test(newTime)) {
+    error('请输入有效的时间格式 (HH:MM)')
+    return
+  }
+
+  checkinTimeLoading.value = true
+  try {
+    await adminApi.updateSystemConfig(
+      'provider_checkin_time',
+      newTime,
+      'Provider 自动签到执行时间（HH:MM 格式）'
+    )
+    previousCheckinTime.value = newTime
+    success(`签到时间已设置为 ${newTime}`)
+  } catch (err) {
+    error('保存签到时间失败')
+    log.error('保存签到时间失败:', err)
+  } finally {
+    checkinTimeLoading.value = false
+  }
+}
+
 async function saveCleanupConfig() {
   cleanupConfigLoading.value = true
   try {

src/api/admin/system.py

@@ -614,6 +614,16 @@ class AdminSetSystemConfigAdapter(AdminApiAdapter):
             payload.get("description"),
         )
 
+        # 如果更新的是签到任务时间，动态更新调度器
+        if self.key == "provider_checkin_time" and value:
+            try:
+                from src.services.system.maintenance_scheduler import get_maintenance_scheduler
+
+                scheduler = get_maintenance_scheduler()
+                scheduler.update_checkin_time(value)
+            except Exception as e:
+                logger.warning(f"更新签到任务时间失败: {e}")
+
         # 返回时不暴露加密后的值
         display_value = "********" if self.key in self.ENCRYPTED_KEYS else config.value
 

src/services/system/config.py

@@ -117,7 +117,11 @@ class SystemConfigService:
         },
         "enable_provider_checkin": {
             "value": True,
-            "description": "是否启用 Provider 自动签到任务，每天凌晨 1:05 执行",
+            "description": "是否启用 Provider 自动签到任务",
+        },
+        "provider_checkin_time": {
+            "value": "01:05",
+            "description": "Provider 自动签到执行时间（HH:MM 格式，24小时制）",
         },
         "provider_priority_mode": {
             "value": "provider",

src/services/system/maintenance_scheduler.py

@@ -36,11 +36,82 @@ from src.utils.compression import compress_json
 class MaintenanceScheduler:
     """系统维护任务调度器"""
 
+    # 签到任务的 job_id
+    CHECKIN_JOB_ID = "provider_checkin"
+
     def __init__(self) -> None:
         self.running = False
         self._interval_tasks = []
         self._stats_aggregation_lock = asyncio.Lock()
 
+    def _get_checkin_time(self) -> tuple[int, int]:
+        """获取签到任务的执行时间
+
+        Returns:
+            (hour, minute) 元组
+        """
+        db = create_session()
+        try:
+            time_str = SystemConfigService.get_config(db, "provider_checkin_time", "01:05")
+            return self._parse_time_string(time_str)
+        finally:
+            db.close()
+
+    @staticmethod
+    def _parse_time_string(time_str: str) -> tuple[int, int]:
+        """解析时间字符串为 (hour, minute) 元组
+
+        Args:
+            time_str: HH:MM 格式的时间字符串
+
+        Returns:
+            (hour, minute) 元组，解析失败返回默认值 (1, 5)
+        """
+        try:
+            if not time_str or ":" not in time_str:
+                return (1, 5)
+            parts = time_str.split(":")
+            hour = int(parts[0])
+            minute = int(parts[1])
+            # 验证范围
+            if 0 <= hour <= 23 and 0 <= minute <= 59:
+                return (hour, minute)
+            return (1, 5)
+        except (ValueError, IndexError):
+            return (1, 5)
+
+    def update_checkin_time(self, time_str: str) -> bool:
+        """更新签到任务的执行时间
+
+        Args:
+            time_str: HH:MM 格式的时间字符串
+
+        Returns:
+            是否成功更新
+        """
+        hour, minute = self._parse_time_string(time_str)
+
+        scheduler = get_scheduler()
+        success = scheduler.reschedule_cron_job(
+            self.CHECKIN_JOB_ID,
+            hour=hour,
+            minute=minute,
+        )
+
+        if success:
+            logger.info(f"Provider 签到任务时间已更新为: {hour:02d}:{minute:02d}")
+
+        return success
+
+    def get_checkin_job_info(self) -> dict | None:
+        """获取签到任务的信息
+
+        Returns:
+            任务信息字典
+        """
+        scheduler = get_scheduler()
+        return scheduler.get_job_info(self.CHECKIN_JOB_ID)
+
     async def start(self) -> Any:
         """启动调度器"""
         if self.running:
@@ -112,12 +183,13 @@ class MaintenanceScheduler:
             name="Gemini文件映射清理",
         )
 
-        # Provider 签到任务 - 凌晨 1:05 执行
+        # Provider 签到任务 - 根据配置时间执行
+        checkin_hour, checkin_minute = self._get_checkin_time()
         scheduler.add_cron_job(
             self._scheduled_provider_checkin,
-            hour=1,
+            hour=checkin_hour,
-            minute=5,  # 在统计聚合任务（1:00）之后执行
+            minute=checkin_minute,
-            job_id="provider_checkin",
+            job_id=self.CHECKIN_JOB_ID,
             name="Provider签到",
         )
 

src/services/system/scheduler.py

@@ -190,6 +190,66 @@ class TaskScheduler:
         except Exception as e:
             logger.warning(f"移除定时任务失败 {job_id}: {e}")
 
+    def reschedule_cron_job(
+        self,
+        job_id: str,
+        hour: int,
+        minute: int = 0,
+    ) -> bool:
+        """
+        重新调度 cron 定时任务的执行时间
+
+        Args:
+            job_id: 任务ID
+            hour: 新的执行时间（小时），使用业务时区
+            minute: 新的执行时间（分钟）
+
+        Returns:
+            是否成功重新调度
+        """
+        try:
+            job = self.scheduler.get_job(job_id)
+            if not job:
+                logger.warning(f"任务不存在: {job_id}")
+                return False
+
+            trigger = CronTrigger(hour=hour, minute=minute, timezone=APP_TIMEZONE)
+            self.scheduler.reschedule_job(job_id, trigger=trigger)
+
+            logger.info(
+                f"已重新调度定时任务: {job.name}, "
+                f"新执行时间: {hour:02d}:{minute:02d} ({APP_TIMEZONE})"
+            )
+            return True
+        except Exception as e:
+            logger.exception(f"重新调度任务失败 {job_id}: {e}")
+            return False
+
+    def get_job_info(self, job_id: str) -> dict | None:
+        """
+        获取任务信息
+
+        Args:
+            job_id: 任务ID
+
+        Returns:
+            任务信息字典，包含 name, next_run_time 等
+        """
+        try:
+            job = self.scheduler.get_job(job_id)
+            if not job:
+                return None
+
+            next_run = job.next_run_time
+            return {
+                "id": job.id,
+                "name": job.name,
+                "next_run_time": next_run.isoformat() if next_run else None,
+            }
+        except Exception as e:
+            logger.warning(f"获取任务信息失败 {job_id}: {e}")
+            return None
+
     @property
     def is_running(self) -> bool:
         """调度器是否在运行"""