新增 affiliate_dash 统一领取页流程(阶段 4)

- 后端:claim 详情分流 affiliate_dash 分支 + 详情轮询刷新 bind-result
- 输 UID 触发 bind(拿 bindUuid/二维码, task→waiting_binding)
- 新增 POST /claim/:token/affiliate-dash/submit(submit→redeeming + 事件)
- 前端:ClaimAffiliateDashSteps(二维码/绑定状态/mismatch警告/提交发货)
- claim-snapshot/claim-poll 按 flowType 分流(step2 绑定中/step3 已绑定待提交/step4 结果)
- 前后端 typecheck + 后端 212 测试通过

apps/backend/src/routes/claims.ts

@@ -6,6 +6,7 @@ import {
   getKuaishouCloudClaimDetail,
   rebindKuaishouCloudClaimRole,
   redeemKuaishouCloudClaim,
+  submitAffiliateDashClaim,
   submitClaimUid,
 } from '../services/claim/kuaishou-cloud-claim-service.js'
 import { buildNotFoundPayload, createRouteHandler } from '../utils/http.js'
@@ -43,6 +44,16 @@ router.post(
   }),
 )
 
+router.post(
+  '/:token/affiliate-dash/submit',
+  claimWriteRateLimit,
+  createRouteHandler((req) => submitAffiliateDashClaim(req.params.token, req.body || {}), {
+    successMessage: '发货已提交',
+    errorMessage: '提交发货失败',
+    scope: '[claims/:token/affiliate-dash/submit]',
+  }),
+)
+
 router.post(
   '/:token/kuaishou-cloud/confirm-role',
   claimWriteRateLimit,