fix: 修复设置系统脱节、队列计数漂移、资源泄露等全量问题

- 统一设置系统：create_scheduler_service 读取 DB 设置覆盖默认值
- 修复 ProxyRepository.update_score 误删所有无效代理的 SQL
- ValidationQueue：修复 Worker 计数漂移与启动恢复任务饿死
- SchedulerService：移除 drain() 阻塞，主循环可正常响应 stop
- TaskService：在调度器周期内自动清理过期任务，防止内存泄漏
- lifespan/conftest：规范关闭顺序，消除 Event loop closed 警告
- Repository：异常日志增加 exc_info，今日新增按 created_at 统计
- ValidatorService：防止 HTTP session 重复关闭，移除 SOCKS 多余 close
- 前端：补全 pluginsStore.isEmpty，ProxyList 最低分数上限改为 100
- 删除 config.py 中冗余的 cors_origins_list property

WebUI/src/api/index.js

@@ -97,4 +97,8 @@ export const settingsAPI = {
   saveSettings: (data) => api.post('/api/settings', data)
 }
 
+export const tasksAPI = {
+  getTaskStatus: (taskId) => api.get(`/api/tasks/${taskId}`)
+}
+
 export default api

WebUI/src/services/pluginService.js

@@ -1,4 +1,26 @@
-import { pluginsAPI } from '../api'
+import { pluginsAPI, tasksAPI } from '../api'
+
+const POLL_INTERVAL = 1000
+const MAX_POLL_ATTEMPTS = 30
+
+async function pollTaskStatus(taskId) {
+  for (let i = 0; i < MAX_POLL_ATTEMPTS; i++) {
+    await new Promise(resolve => setTimeout(resolve, POLL_INTERVAL))
+    const response = await tasksAPI.getTaskStatus(taskId)
+    if (response.code !== 200) {
+      continue
+    }
+    const status = response.data.status
+    if (status === 'completed' || status === 'failed') {
+      return response
+    }
+  }
+  return {
+    code: 200,
+    message: '爬取任务进行中，请稍后刷新查看结果',
+    data: { task_id: taskId, status: 'running' }
+  }
+}
 
 export const pluginService = {
   async getPlugins() {
@@ -18,10 +40,28 @@ export const pluginService = {
   },
 
   async crawlPlugin(pluginId) {
-    return pluginsAPI.crawlPlugin(pluginId)
+    const startRes = await pluginsAPI.crawlPlugin(pluginId)
+    if (startRes.code !== 200 || !startRes.data?.task_id) {
+      return startRes
+    }
+    const finalRes = await pollTaskStatus(startRes.data.task_id)
+    return {
+      code: finalRes.code,
+      message: finalRes.data?.message || finalRes.message,
+      data: finalRes.data?.data || finalRes.data
+    }
   },
 
   async crawlAll() {
-    return pluginsAPI.crawlAll()
+    const startRes = await pluginsAPI.crawlAll()
+    if (startRes.code !== 200 || !startRes.data?.task_id) {
+      return startRes
+    }
+    const finalRes = await pollTaskStatus(startRes.data.task_id)
+    return {
+      code: finalRes.code,
+      message: finalRes.data?.message || finalRes.message,
+      data: finalRes.data?.data || finalRes.data
+    }
   }
 }

WebUI/src/stores/plugins.js

@@ -14,6 +14,7 @@ export const usePluginsStore = defineStore('plugins', () => {
   // ==================== Getters ====================
   const enabledCount = computed(() => plugins.value.filter(p => p.enabled).length)
   const totalCount = computed(() => plugins.value.length)
+  const isEmpty = computed(() => !loading.value && plugins.value.length === 0)
   
   // ==================== Actions ====================
   
@@ -97,6 +98,7 @@ export const usePluginsStore = defineStore('plugins', () => {
     // Getters
     enabledCount,
     totalCount,
+    isEmpty,
     // Actions
     fetchPlugins,
     togglePlugin,

WebUI/src/stores/proxy.js

@@ -132,8 +132,8 @@ export const useProxyStore = defineStore('proxy', () => {
     try {
       const response = await proxyService.export(format, protocol)
       
-      // 创建下载链接
-      const url = window.URL.createObjectURL(new Blob([response]))
+      // response 已经是 Blob（axios 配置了 responseType: 'blob'），直接创建下载链接
+      const url = window.URL.createObjectURL(response)
       const link = document.createElement('a')
       link.href = url
       link.setAttribute('download', `proxies.${format}`)

WebUI/src/views/ProxyList.vue

@@ -23,7 +23,7 @@
           <el-input-number 
             v-model="filterForm.minScore" 
             :min="0" 
-            :max="10" 
+            :max="100" 
             style="width: 120px" 
             @change="handleSearch" 
           />
@@ -190,7 +190,7 @@ async function fetchProxies() {
   }
   abortController = new AbortController()
   
-  await proxyStore.fetchProxies({
+  const success = await proxyStore.fetchProxies({
     page: currentPage.value,
     page_size: pageSize.value,
     protocol: filterForm.protocol || null,
@@ -200,6 +200,9 @@ async function fetchProxies() {
   }, abortController.signal)
   
   abortController = null
+  if (!success) {
+    ElMessage.error('获取代理列表失败')
+  }
 }
 
 // ==================== 事件处理 ====================