feat: Implement initial Codex Pool backend server with comprehensive APIs for configuration, S2A integration, owner management, batch processing, monitoring, and corresponding frontend pages.

frontend/src/pages/Upload.tsx

@@ -70,10 +70,13 @@ export default function Upload() {
   const [membersPerTeam, setMembersPerTeam] = useState(4)
   const [concurrentTeams, setConcurrentTeams] = useState(2)
   const [browserType, setBrowserType] = useState<'chromedp' | 'rod'>('chromedp')
-  const [proxy, setProxy] = useState('')
+  const [useProxy, setUseProxy] = useState(false) // 是否使用全局代理
   const [includeOwner, setIncludeOwner] = useState(false) // 母号也入库
   const [processCount, setProcessCount] = useState(0) // 处理数量，0表示全部
 
+  // 获取全局代理地址
+  const globalProxy = config.proxy?.default || ''
+
   const hasConfig = config.s2a.apiBase && config.s2a.adminKey
 
   // Load stats
@@ -191,7 +194,7 @@ export default function Upload() {
           concurrent_teams: Math.min(concurrentTeams, stats?.valid || 1),
           browser_type: browserType,
           headless: true, // 始终使用无头模式
-          proxy,
+          proxy: useProxy ? globalProxy : '',
           include_owner: includeOwner, // 母号也入库
           process_count: processCount, // 处理数量，0表示全部
         }),
@@ -209,7 +212,7 @@ export default function Upload() {
       alert('启动失败')
     }
     setLoading(false)
-  }, [stats, membersPerTeam, concurrentTeams, browserType, proxy, includeOwner, processCount, fetchStatus])
+  }, [stats, membersPerTeam, concurrentTeams, browserType, useProxy, globalProxy, includeOwner, processCount, fetchStatus])
 
   // 停止处理
   const handleStop = useCallback(async () => {
@@ -469,13 +472,15 @@ export default function Upload() {
                     </div>
                   </div>
 
-                  <Input
-                    label="代理地址（可选）"
-                    placeholder="http://127.0.0.1:7890"
-                    value={proxy}
-                    onChange={(e) => setProxy(e.target.value)}
-                    disabled={isRunning}
-                  />
+                  <div className="p-3 rounded-lg bg-slate-50 dark:bg-slate-800/50 border border-slate-200 dark:border-slate-700">
+                    <Switch
+                      checked={useProxy}
+                      onChange={setUseProxy}
+                      disabled={isRunning || !globalProxy}
+                      label="使用全局代理"
+                      description={globalProxy ? `当前代理: ${globalProxy}` : '请先在系统配置中设置代理地址'}
+                    />
+                  </div>
 
                   <div className="p-3 rounded-lg bg-slate-50 dark:bg-slate-800/50 border border-slate-200 dark:border-slate-700">
                     <Switch