资料字段支持下拉选项与买家截图，大厅按 VIP 等级延迟可见

资料字段：
- CollectField 支持 type(text/select) 与 options，规则字段语法 key:名称#选项1,选项2
- 默认字段改为游戏编号/游戏昵称/系统(安卓,苹果)/区服(QQ区,微信区)，旧默认模板字段自动替换为新版
- 采集页与管理端补资料支持单选下拉与买家主页截图上传（新增公开上传接口）
- 管理端工单详情展示买家截图

VIP 延迟可见：
- 等级权限新增 visibleDelaySeconds（默认 VIP1=20s~VIP5=0s，可后台配置）
- 大厅按等级延迟过滤新发布工单，页面提示延迟规则

apps/backend/src/repositories/worker-platform/types.ts

@@ -190,6 +190,7 @@ export type ListInput = {
   workerId?: number
   categoryId?: number
   workerSharingId?: number
+  visibleAfterIso?: string
 }
 
 export type ProductRuleListInput = {

apps/backend/src/repositories/worker-platform/work-order-repo.ts

@@ -565,6 +565,7 @@ export async function listWorkOrders({
   workerId = 0,
   categoryId = 0,
   workerSharingId = 0,
+  visibleAfterIso = '',
 }: ListInput = {}): Promise<{ items: WorkOrderRow[]; total: number }> {
   const { whereClause, params } = buildWorkOrderWhere({
     status,
@@ -572,6 +573,7 @@ export async function listWorkOrders({
     workerId,
     categoryId,
     workerSharingId,
+    visibleAfterIso,
   })
   const totalResult = await query<{ total: number }>(
     `
@@ -1326,6 +1328,7 @@ function buildWorkOrderWhere({
   workerId = 0,
   categoryId = 0,
   workerSharingId = 0,
+  visibleAfterIso = '',
 }: ListInput) {
   const filters: string[] = []
   const params: unknown[] = []
@@ -1357,6 +1360,10 @@ function buildWorkOrderWhere({
         ))`,
     )
   }
+  if (visibleAfterIso) {
+    params.push(visibleAfterIso)
+    filters.push(`(wo.published_at IS NULL OR wo.published_at <= $${params.length})`)
+  }
   return {
     whereClause: filters.length > 0 ? `WHERE ${filters.join(' AND ')}` : '',
     params,