继续收紧 TypeScript：ClaimIdentity 契约与 flow 出口类型

- 新增 types/claim-identity，统一 ClaimIdentity / Payload / AdminSummary
- 导出 KuaishouCloudFlow、KuaishouFeifeiFlow 作为 normalize 出口
- 生产路径 JsonObject 统一从 types/json 导入，去掉 rebind as any
- 前后端 claimIdentity 类型字段对齐

apps/backend/src/services/claim/claim-identity.ts

@@ -1,14 +1,19 @@
 import { createHttpError } from '../../utils/http.js'
 import { parseTaskContext } from '../../utils/task-json.js'
 import { isTaskFinalStatus, normalizeTaskStatus, TASK_STATUS } from '../../domain/task-status.js'
+import type {
+  ClaimIdentity,
+  ClaimIdentityAdminSummary,
+  ClaimIdentityPayload,
+} from '../../types/claim-identity.js'
 import type { TaskRow } from '../../types/repository/rows.js'
 import type { JsonObject } from '../../types/json.js'
 
-export type ClaimIdentity = {
-  expectedUid: string
-  submittedAt: string | null
-  source: string
-}
+export type {
+  ClaimIdentity,
+  ClaimIdentityAdminSummary,
+  ClaimIdentityPayload,
+} from '../../types/claim-identity.js'
 
 const CLAIM_UID_MAX_LENGTH = 64
 
@@ -130,18 +135,6 @@ export function assertLewanAutoFulfillmentUidReady(
   return expectedUid
 }
 
-export type ClaimIdentityAdminSummary = {
-  expectedUid: string
-  submittedAt: string | null
-  source: string
-  ready: boolean
-  boundUid: string
-  boundRoleName: string
-  uidMatched: boolean | null
-  compatibilityMode: 'uid' | 'legacy_no_uid'
-  note: string
-}
-
 export function buildClaimIdentityAdminSummary(
   context: unknown,
   options: { flowLike?: unknown; taskRoleId?: unknown; taskRoleName?: unknown } = {},
@@ -261,7 +254,7 @@ export function appendUidToUrl(targetUrl: unknown, uid: unknown): string {
   }
 }
 
-export function buildClaimIdentityPayload(value: unknown) {
+export function buildClaimIdentityPayload(value: unknown): ClaimIdentityPayload {
   const identity = normalizeClaimIdentity(value)
   return {
     expectedUid: identity.expectedUid,