接单平台新增 VIP 等级体系与邀请绑定

- 等级按累计验收通过工单数自动升级（阈值后台可配），VIP1-5 默认配置 10/30/50/100
- 存量打手统一归 VIP1，原 regular 等级停用
- 注册支持邀请码绑定邀请人，每人生成唯一邀请码
- 新增 worker_level_logs 升级流水表
- 个人中心展示邀请码与升级进度，管理端等级表单支持升级阈值配置

apps/frontend/src/pages/worker/WorkerLoginPage.tsx

@@ -34,6 +34,7 @@ export default function WorkerLoginPage() {
     password: string
     displayName?: string
     phone?: string
+    inviteCode?: string
   }) {
     setLoading(true)
     try {
@@ -98,6 +99,9 @@ export default function WorkerLoginPage() {
                   <Form.Item label="手机号" name="phone">
                     <Input />
                   </Form.Item>
+                  <Form.Item label="邀请码（选填）" name="inviteCode">
+                    <Input maxLength={8} placeholder="填写邀请人邀请码" />
+                  </Form.Item>
                   <Form.Item
                     label="密码"
                     name="password"

apps/frontend/src/pages/worker/WorkerProfilePage.tsx

@@ -1,5 +1,6 @@
 import {
   BankOutlined,
+  CopyOutlined,
   CustomerServiceOutlined,
   HistoryOutlined,
   LockOutlined,
@@ -23,6 +24,7 @@ import {
   Input,
   InputNumber,
   Modal,
+  Progress,
   Row,
   Select,
   Space,
@@ -114,9 +116,20 @@ export default function WorkerProfilePage() {
 
   const worker = profileQuery.data?.data.worker
   const summary = profileQuery.data?.data.summary
+  const levelProgress = profileQuery.data?.data.levelProgress
   const financeConfig = profileQuery.data?.data.financeConfig
   const canUseFinanceActions = worker?.status === 'active'
 
+  async function copyInviteCode() {
+    if (!worker?.inviteCode) return
+    try {
+      await navigator.clipboard.writeText(worker.inviteCode)
+      message.success('邀请码已复制')
+    } catch {
+      message.error('复制失败，请手动复制')
+    }
+  }
+
   const ledgersQuery = useQuery({
     queryKey: ['worker-wallet-ledgers', ledgerType, ledgerPage, ledgerPageSize],
     queryFn: () =>
@@ -453,6 +466,40 @@ export default function WorkerProfilePage() {
                 <Tag>{worker.level?.name || '未分级'}</Tag>
               </Space>
             </Space>
+            <Space direction="vertical" size={4} style={{ marginTop: 12, width: '100%' }}>
+              <Space wrap size={[8, 8]}>
+                <Typography.Text type="secondary">
+                  我的邀请码：
+                </Typography.Text>
+                <Typography.Text strong>{worker.inviteCode || '-'}</Typography.Text>
+                <Button
+                  size="small"
+                  type="link"
+                  icon={<CopyOutlined />}
+                  disabled={!worker.inviteCode}
+                  onClick={copyInviteCode}
+                >
+                  复制
+                </Button>
+              </Space>
+              {levelProgress && levelProgress.nextThreshold !== null ? (
+                <Space direction="vertical" size={0} style={{ width: '100%' }}>
+                  <Typography.Text type="secondary">
+                    已累计完成 {summary?.acceptedOrderCount || 0} 单，
+                    距下一等级还需 {Math.max(0, levelProgress.nextThreshold - (summary?.acceptedOrderCount || 0))} 单
+                  </Typography.Text>
+                  <Progress
+                    percent={levelProgress.progressPercent}
+                    size="small"
+                    format={(percent) => `${percent}%`}
+                  />
+                </Space>
+              ) : (
+                <Typography.Text type="secondary">
+                  已累计完成 {summary?.acceptedOrderCount || 0} 单，当前已是最高等级
+                </Typography.Text>
+              )}
+            </Space>
           </Card>
 
           <Row gutter={[16, 16]}>
@@ -542,6 +589,25 @@ export default function WorkerProfilePage() {
                       <Descriptions.Item label="当前等级">
                         {worker.level?.name || '-'}
                       </Descriptions.Item>
+                      <Descriptions.Item label="我的邀请码">
+                        <Space size={4}>
+                          {worker.inviteCode || '-'}
+                          {worker.inviteCode ? (
+                            <Button
+                              size="small"
+                              type="link"
+                              icon={<CopyOutlined />}
+                              onClick={copyInviteCode}
+                            />
+                          ) : null}
+                        </Space>
+                      </Descriptions.Item>
+                      <Descriptions.Item label="邀请人">
+                        {worker.inviter ? worker.inviter.displayName || worker.inviter.username : '-'}
+                      </Descriptions.Item>
+                      <Descriptions.Item label="已累计完成">
+                        {summary?.acceptedOrderCount || 0} 单
+                      </Descriptions.Item>
                       <Descriptions.Item label="免押额度">
                         {formatMoney(worker.level?.permissions.depositFreeAmount || 0)}
                       </Descriptions.Item>