feat(upload): Persist team process configuration to localStorage

- Add localStorage persistence for team process configuration settings
- Initialize state values from saved configuration on component mount
- Implement useEffect hook to automatically save configuration changes to localStorage
- Preserve user preferences for membersPerTeam, concurrentTeams, concurrentS2A, useProxy, includeOwner, and processCount across sessions
- Improve user experience by restoring previous settings when returning to Upload page

frontend/src/pages/Upload.tsx

@@ -68,16 +68,24 @@ export default function Upload() {
   } | null>(null)
   const [batchCount, setBatchCount] = useState(0)
 
-  // 配置
-  const [membersPerTeam, setMembersPerTeam] = useState(4)
-  const [concurrentTeams, setConcurrentTeams] = useState(2)
-  const [concurrentS2A, setConcurrentS2A] = useState(2) // 入库并发数
-  const [useProxy, setUseProxy] = useState(false) // 是否使用代理池
-  const [includeOwner, setIncludeOwner] = useState(false) // 母号也入库
-  const [processCount, setProcessCount] = useState(0) // 处理数量，0表示全部
+  // 配置（从 localStorage 恢复上次设置）
+  const savedConfig = JSON.parse(localStorage.getItem('team_process_config') || '{}')
+  const [membersPerTeam, setMembersPerTeam] = useState(savedConfig.membersPerTeam ?? 4)
+  const [concurrentTeams, setConcurrentTeams] = useState(savedConfig.concurrentTeams ?? 2)
+  const [concurrentS2A, setConcurrentS2A] = useState(savedConfig.concurrentS2A ?? 2) // 入库并发数
+  const [useProxy, setUseProxy] = useState(savedConfig.useProxy ?? false) // 是否使用代理池
+  const [includeOwner, setIncludeOwner] = useState(savedConfig.includeOwner ?? false) // 母号也入库
+  const [processCount, setProcessCount] = useState(savedConfig.processCount ?? 0) // 处理数量，0表示全部
   const [authMethod, setAuthMethod] = useState<'api' | 'browser'>('browser') // 授权方式
   const [proxyPoolStats, setProxyPoolStats] = useState<{ total: number; enabled: number } | null>(null)
 
+  // 配置变化时自动保存到 localStorage
+  useEffect(() => {
+    localStorage.setItem('team_process_config', JSON.stringify({
+      membersPerTeam, concurrentTeams, concurrentS2A, useProxy, includeOwner, processCount,
+    }))
+  }, [membersPerTeam, concurrentTeams, concurrentS2A, useProxy, includeOwner, processCount])
+
   // 加载全局配置中的授权方式和代理池统计
   useEffect(() => {
     const fetchConfig = async () => {