fix(distribution): 分销后台展示完整用户手机号信息

- 后端 ListReceivedListings 移除 owner_phone 脱敏，向分销商返回完整卖家手机号
- 前端 Orders.tsx 移除 maskPhone 遮蔽逻辑，订单列表与收号货架均直接展示真实完整手机号
- 手机号文本支持一键复制，方便分销管理员日常履约联系
- 验证方式：go test 运行通过，npm run build（tsc + vite build）通过

distribution-admin/src/pages/Orders.tsx

@@ -114,10 +114,7 @@ const LISTING_STATUS_LABELS: Record<string, { label: string; color: string }> =
   draft: { label: '草稿', color: 'warning' },
 }
 
-function maskPhone(phone?: string): string {
-  if (!phone || phone.length < 7) return phone || '-'
-  return phone.slice(0, 3) + '****' + phone.slice(-4)
-}
+
 
 function formatGameName(gameName?: string): string {
   if (!gameName) return ''
@@ -396,8 +393,8 @@ export default function Orders({ kind }: { kind: 'all' | 'sold' | 'receive' }) {
       render: (_: unknown, row: DistributionOrder) => (
         <div>
           <div style={{ fontWeight: 500, whiteSpace: 'nowrap' }}>{row.renter_nickname || '平台租客'}</div>
-          <Typography.Text type="secondary" style={{ fontSize: 12, whiteSpace: 'nowrap' }}>
-            {maskPhone(row.renter_phone)}
+          <Typography.Text type="secondary" copyable={Boolean(row.renter_phone)} style={{ fontSize: 12, whiteSpace: 'nowrap' }}>
+            {row.renter_phone || '-'}
           </Typography.Text>
         </div>
       ),
@@ -655,8 +652,12 @@ export default function Orders({ kind }: { kind: 'all' | 'sold' | 'receive' }) {
                           render: (_: unknown, row: ReceivedListing) => (
                             <div>
                               <div style={{ fontWeight: 500, whiteSpace: 'nowrap' }}>{row.owner_nickname || '匿名卖家'}</div>
-                              <Typography.Text type="secondary" style={{ fontSize: 12, whiteSpace: 'nowrap' }}>
-                                {maskPhone(row.owner_phone)}
+                              <Typography.Text
+                                type="secondary"
+                                copyable={Boolean(row.owner_phone)}
+                                style={{ fontSize: 12, whiteSpace: 'nowrap' }}
+                              >
+                                {row.owner_phone || '-'}
                               </Typography.Text>
                             </div>
                           ),