feat(worker-platform): 抢单大厅首页新增联系客服胶囊入口并抽象通用客服弹窗组件

1. 抽离打手端通用联系客服弹窗组件 WorkerContactModal，统一维护微信二维码、打手账号/状态/余额回显、一键复制及沟通提示；
2. 抢单大厅移动端顶部状态栏（余额上限右侧首屏黄金位）新增精致微动效【联系客服】胶囊按钮，大幅缩短找客服沟通链路；
3. 抢单大厅桌面端头部操作栏同步补齐【联系客服】按钮，并在个人中心账号弹窗中统一复用 WorkerContactModal；
4. 适配移动端与超窄屏自适应响应式样式，完成前端59项测试与全量打包构建验证。

apps/frontend/src/components/worker/WorkerContactModal.tsx

@@ -0,0 +1,79 @@
+import { Alert, Button, Descriptions, Image, Modal, Space, Typography } from 'antd'
+
+import { formatMoney, formatWorkerStatus } from '@/pages/worker/worker-profile-view-utils'
+import type { WorkerFinanceConfig, WorkerUser } from '@/types/worker-platform'
+
+export type WorkerContactModalProps = {
+  open: boolean
+  onClose: () => void
+  isMobile?: boolean
+  worker?: WorkerUser | null
+  financeConfig?: WorkerFinanceConfig | null
+  title?: string
+}
+
+export function WorkerContactModal({
+  open,
+  onClose,
+  isMobile = false,
+  worker,
+  financeConfig,
+  title = '联系客服',
+}: WorkerContactModalProps) {
+  return (
+    <Modal
+      title={title}
+      open={open}
+      width={isMobile ? '92%' : 500}
+      destroyOnHidden
+      footer={
+        <Button type="primary" onClick={onClose}>
+          我知道了
+        </Button>
+      }
+      onCancel={onClose}
+    >
+      <Space direction="vertical" size={16} className="full-width">
+        <Alert
+          showIcon
+          type="info"
+          message="如需取消已接订单，请扫码联系客服处理。充值、提现与审核问题也由后台人工客服处理。"
+        />
+        {financeConfig?.adminContact?.wechatQrCodeImage ? (
+          <div style={{ textAlign: 'center' }}>
+            <Image
+              width={200}
+              src={
+                financeConfig.adminContact.wechatQrCodeImage.mediumUrl ||
+                financeConfig.adminContact.wechatQrCodeImage.url
+              }
+              alt="客服微信二维码"
+            />
+          </div>
+        ) : (
+          <Typography.Text type="secondary">
+            客服暂未配置微信二维码，请按下方账号信息联系。
+          </Typography.Text>
+        )}
+        <Descriptions column={1} bordered size="small">
+          <Descriptions.Item label="账号">
+            <Typography.Text copyable>{worker?.username || '-'}</Typography.Text>
+          </Descriptions.Item>
+          <Descriptions.Item label="昵称">{worker?.displayName || '-'}</Descriptions.Item>
+          <Descriptions.Item label="手机号">
+            <Typography.Text copyable>{worker?.phone || '-'}</Typography.Text>
+          </Descriptions.Item>
+          <Descriptions.Item label="账号状态">
+            {formatWorkerStatus(worker?.status || '')}
+          </Descriptions.Item>
+          <Descriptions.Item label="当前余额">
+            {formatMoney(worker?.wallet?.availableAmount)}
+          </Descriptions.Item>
+        </Descriptions>
+        <Typography.Paragraph className="worker-profile-help-text">
+          建议沟通时一起提供：申请类型、金额、订单号或转账备注、收款方式，以及当前账号信息。
+        </Typography.Paragraph>
+      </Space>
+    </Modal>
+  )
+}