diff --git a/apps/backend/src/repositories/kuaishou-cloud-task-state-repo.ts b/apps/backend/src/repositories/kuaishou-cloud-task-state-repo.ts
index a605a945..0e6673e5 100644
--- a/apps/backend/src/repositories/kuaishou-cloud-task-state-repo.ts
+++ b/apps/backend/src/repositories/kuaishou-cloud-task-state-repo.ts
@@ -3,10 +3,9 @@ import { TASK_STATUS } from '../domain/task-status.js'
 import { maskCode } from '../utils/masking.js'
 import { parseTaskContext } from '../utils/task-json.js'
 import { normalizeTimestampIso } from '../utils/time.js'
+import type { JsonObject, JsonRecord } from '../types/json.js'
 
 type QueryExecutor = (text: string, params?: unknown[]) => Promise<{ rows: unknown[] }>
-type JsonRecord = Record<string, any>
-
 export type KuaishouCloudSourceLoadStat = {
   sourceKey: string
   activeCount: number
diff --git a/apps/backend/src/routes/admin/audit-logs.ts b/apps/backend/src/routes/admin/audit-logs.ts
index bbb6d7fb..fa9a1ca2 100644
--- a/apps/backend/src/routes/admin/audit-logs.ts
+++ b/apps/backend/src/routes/admin/audit-logs.ts
@@ -1,9 +1,10 @@
 import { Router } from 'express'
+import type { JsonObject } from '../../types/json.js'
 
 import { getAdminAuditLogs } from '../../services/admin/admin-audit-service.js'
 import { createJsonHandler, requireAdminRoles } from './session.js'
 
-type AdminAuditLogRouteQuery = Record<string, any>
+type AdminAuditLogRouteQuery = JsonObject
 
 const router = Router()
 
diff --git a/apps/backend/src/routes/kuaishou-industry.ts b/apps/backend/src/routes/kuaishou-industry.ts
index 12cddfa0..d5529da1 100644
--- a/apps/backend/src/routes/kuaishou-industry.ts
+++ b/apps/backend/src/routes/kuaishou-industry.ts
@@ -1,5 +1,6 @@
 import process from 'node:process'
 import { Router } from 'express'
+import type { JsonObject } from '../types/json.js'
 
 import { createRateLimitMiddleware } from '../middleware/rate-limit.js'
 import { handleSendCode } from '../services/platforms/kuaishou-industry/send-code-service.js'
@@ -152,10 +153,10 @@ router.post('/consume-code', industryRateLimit, async (req, res) => {
   }
 })
 
-function mergeRequestParams(req: any): Record<string, any> {
+function mergeRequestParams(req: any): JsonObject {
   const query = req.query || {}
   const body = req.body || {}
-  const params: Record<string, any> = { ...query }
+  const params: JsonObject = { ...query }
 
   for (const [key, value] of Object.entries(body)) {
     if (params[key] === undefined && key !== 'param') {
diff --git a/apps/backend/src/services/admin/admin-audit-service.ts b/apps/backend/src/services/admin/admin-audit-service.ts
index 4010838c..3ed239f4 100644
--- a/apps/backend/src/services/admin/admin-audit-service.ts
+++ b/apps/backend/src/services/admin/admin-audit-service.ts
@@ -1,8 +1,7 @@
 import { createAdminAuditLog, listAdminAuditLogs } from '../../repositories/admin-audit-log-repo.js'
 import { nowIso } from '../../utils/time.js'
 import { normalizeDateQuery, normalizePage, normalizePageSize, safeParseJson } from './admin-query-utils.js'
-
-type JsonObject = Record<string, any>
+import type { JsonObject } from '../../types/json.js'
 
 export async function writeAdminAuditLog(session: JsonObject | null | undefined, payload: JsonObject = {}) {
   if (!session?.userId) {
diff --git a/apps/backend/src/services/admin/admin-auth-service.ts b/apps/backend/src/services/admin/admin-auth-service.ts
index 4fb558ba..d9aeaec8 100644
--- a/apps/backend/src/services/admin/admin-auth-service.ts
+++ b/apps/backend/src/services/admin/admin-auth-service.ts
@@ -1,4 +1,5 @@
 import crypto from 'node:crypto'
+import type { JsonObject } from '../../types/json.js'
 
 import { runtimeConfig } from '../../config/runtime.js'
 import {
@@ -15,8 +16,6 @@ import { normalizePage, normalizePageSize } from './admin-query-utils.js'
 
 type AdminUserRow = NonNullable<Awaited<ReturnType<typeof getAdminUserById>>>
 
-type JsonObject = Record<string, any>
-
 export type AdminSession = {
   sessionId: string
   userId: number
diff --git a/apps/backend/src/services/admin/admin-dashboard-service.ts b/apps/backend/src/services/admin/admin-dashboard-service.ts
index 11933c89..b3243a7f 100644
--- a/apps/backend/src/services/admin/admin-dashboard-service.ts
+++ b/apps/backend/src/services/admin/admin-dashboard-service.ts
@@ -1,8 +1,7 @@
 import { query } from '../../db/client.js'
 import { TASK_STATUS } from '../../domain/task-status.js'
 import { nowIso } from '../../utils/time.js'
-
-type JsonObject = Record<string, any>
+import type { JsonObject } from '../../types/json.js'
 
 export async function getAdminDashboardSummary() {
   const todayPrefix = nowIso().slice(0, 10)
diff --git a/apps/backend/src/services/admin/admin-query-utils.ts b/apps/backend/src/services/admin/admin-query-utils.ts
index 967f515b..71a3df6d 100644
--- a/apps/backend/src/services/admin/admin-query-utils.ts
+++ b/apps/backend/src/services/admin/admin-query-utils.ts
@@ -1,5 +1,4 @@
-type JsonObject = Record<string, any>
-
+import type { JsonObject } from '../../types/json.js'
 export function normalizePage(rawValue: unknown) {
   const parsed = Number(rawValue)
   return Number.isFinite(parsed) && parsed > 0 ? Math.floor(parsed) : 1
diff --git a/apps/backend/src/services/admin/admin-read-service.ts b/apps/backend/src/services/admin/admin-read-service.ts
index a2615c66..8c2fbae3 100644
--- a/apps/backend/src/services/admin/admin-read-service.ts
+++ b/apps/backend/src/services/admin/admin-read-service.ts
@@ -5,6 +5,7 @@ import { listOrderItemsByOrderId } from '../../repositories/order-item-repo.js'
 import { getOrderById, listOrders } from '../../repositories/order-repo.js'
 import { getTaskById, listTasks, listTasksByOrderId } from '../../repositories/task-repo.js'
 import { listTaskEventsByTaskId } from '../../repositories/task-event-repo.js'
+import type { JsonObject, JsonRecord } from '../../types/json.js'
 import {
   listKuaishouIndustryVouchersByOid,
   listKuaishouIndustryVouchersByTaskId,
@@ -58,6 +59,7 @@ import type {
   AdminOrderListResponse,
   AdminTaskListResponse,
 } from '../../types/admin/read-models.js'
+import type { AdminTaskDetailView } from '../../types/admin/task-detail.js'
 import type {
   AdminEntityIdInput,
   AdminOrderListQueryInput,
@@ -69,8 +71,6 @@ import type {
   TaskRow,
 } from '../../types/repository/rows.js'
 
-type JsonRecord = Record<string, any>
-
 export async function getAdminOrders(
   query: AdminOrderListQueryInput = {},
 ): Promise<AdminOrderListResponse> {
@@ -218,7 +218,7 @@ export async function getAdminTasks(
 export async function getAdminTaskDetail(
   taskId: AdminEntityIdInput,
   session: AdminViewerSessionInput | null = null,
-): Promise<JsonRecord> {
+): Promise<AdminTaskDetailView> {
   const task = await getTaskById(Number(taskId))
 
   if (!task) {
diff --git a/apps/backend/src/services/admin/admin-read-shared-helpers.ts b/apps/backend/src/services/admin/admin-read-shared-helpers.ts
index 0d5ff8f0..c12a90a5 100644
--- a/apps/backend/src/services/admin/admin-read-shared-helpers.ts
+++ b/apps/backend/src/services/admin/admin-read-shared-helpers.ts
@@ -1,5 +1,6 @@
 import { safeParseJson } from './admin-query-utils.js'
 import { normalizeAdminRole } from './admin-auth-service.js'
+import { asJsonObject, type  JsonObject, JsonRecord  } from '../../types/json.js'
 import {
   parseTaskContext as parseTaskContextValue,
   parseTaskState as parseTaskStateValue,
@@ -9,7 +10,6 @@ import { canRegenerateClaimLinkStatus, isTaskFinalStatus } from '../../domain/ta
 import type { AdminViewerSessionInput } from '../../types/admin/read-inputs.js'
 import type { OrderItemRow, TaskRow } from '../../types/repository/rows.js'
 
-type JsonRecord = Record<string, any>
 type CloudSourceLabelMap = Map<string, string> | Record<string, string>
 
 type KuaishouCloudFulfillmentMapOptions = {
@@ -74,14 +74,14 @@ export function mapKuaishouCloudFulfillmentContext(
   }
 
   const record = value as JsonRecord
-  const ticket = record.ticket && typeof record.ticket === 'object' ? record.ticket : {}
-  const binding = record.binding && typeof record.binding === 'object' ? record.binding : {}
-  const role = record.role && typeof record.role === 'object' ? record.role : {}
-  const purchase = record.purchase && typeof record.purchase === 'object' ? record.purchase : {}
-  const dispatch = record.dispatch && typeof record.dispatch === 'object' ? record.dispatch : {}
+  const ticket = asJsonObject(record.ticket)
+  const binding = asJsonObject(record.binding)
+  const role = asJsonObject(record.role)
+  const purchase = asJsonObject(record.purchase)
+  const dispatch = asJsonObject(record.dispatch)
   const returnNumber =
-    record.returnNumber && typeof record.returnNumber === 'object' ? record.returnNumber : {}
-  const consume = record.consume && typeof record.consume === 'object' ? record.consume : {}
+    asJsonObject(record.returnNumber)
+  const consume = asJsonObject(record.consume)
   const cloudSourceKeys = Array.isArray(binding.cloudSourceKeys)
     ? binding.cloudSourceKeys.map((value: unknown) => String(value || '').trim()).filter(Boolean)
     : []
diff --git a/apps/backend/src/services/admin/admin-task-read-helpers.ts b/apps/backend/src/services/admin/admin-task-read-helpers.ts
index 022372e9..a399a247 100644
--- a/apps/backend/src/services/admin/admin-task-read-helpers.ts
+++ b/apps/backend/src/services/admin/admin-task-read-helpers.ts
@@ -1,6 +1,7 @@
 import { getTaskById } from '../../repositories/task-repo.js'
 import { createHttpError } from '../../utils/http.js'
 import { safeParseJson } from './admin-query-utils.js'
+import { asJsonObject, type  JsonObject, JsonRecord  } from '../../types/json.js'
 import {
   TASK_STATUS,
   isTaskFulfillmentCompletedStatus,
@@ -22,8 +23,6 @@ import type {
 } from '../../types/repository/rows.js'
 import type { AdminViewerContext } from './admin-read-shared-helpers.js'
 
-type JsonRecord = Record<string, any>
-
 type TaskFulfillmentState = {
   resourceStatus: string
   customerStatus: string
@@ -263,7 +262,7 @@ function isTaskFulfillmentCompleted(task: TaskRow | null | undefined): boolean {
 }
 
 function normalizeRecord(value: unknown): JsonRecord {
-  return value && typeof value === 'object' && !Array.isArray(value) ? value : {}
+  return asJsonObject(value)
 }
 
 function getTaskRetryCount(task: TaskRow | null | undefined): number {
diff --git a/apps/backend/src/services/admin/kuaishou-industry-admin-service.ts b/apps/backend/src/services/admin/kuaishou-industry-admin-service.ts
index 1b1c6138..8a2d801a 100644
--- a/apps/backend/src/services/admin/kuaishou-industry-admin-service.ts
+++ b/apps/backend/src/services/admin/kuaishou-industry-admin-service.ts
@@ -1,3 +1,4 @@
+import { asJsonObject, type  JsonObject  } from '../../types/json.js'
 import {
   findKuaishouIndustryVoucherByCode,
   listKuaishouIndustryVouchersByOid,
@@ -27,8 +28,6 @@ import { reverseKuaishouIndustryCallback } from '../platforms/kuaishou-industry/
 import type { KuaishouIndustryOpenApiCallResult } from '../platforms/kuaishou-industry/openapi-client.js'
 import type { KuaishouIndustryVoucherRow, TaskRow } from '../../types/repository/rows.js'
 
-type JsonObject = Record<string, any>
-
 export async function listAdminKuaishouIndustryVouchers(
   input: KuaishouIndustryVoucherAdminListQuery = {},
 ) {
@@ -462,7 +461,7 @@ function parseJsonObject(value: unknown): JsonObject {
 
   try {
     const parsed = JSON.parse(String(value || '{}'))
-    return parsed && typeof parsed === 'object' && !Array.isArray(parsed) ? parsed : {}
+    return asJsonObject(parsed)
   } catch {
     return {}
   }
diff --git a/apps/backend/src/services/admin/platform-config/cloudtentacles/context.ts b/apps/backend/src/services/admin/platform-config/cloudtentacles/context.ts
index c583632e..20d7dfe6 100644
--- a/apps/backend/src/services/admin/platform-config/cloudtentacles/context.ts
+++ b/apps/backend/src/services/admin/platform-config/cloudtentacles/context.ts
@@ -1,5 +1,3 @@
-type JsonObject = Record<string, any>
-
 export function pickFirstNonEmpty(values: unknown[]) {
   for (const value of values) {
     const normalized = String(value || "").trim();
@@ -17,6 +15,7 @@ export function isPlainObject(value: unknown): value is JsonObject {
 
 import { getCloudtentaclesSourceByKey } from "../../../platforms/cloudtentacles/source-config-service.js";
 import { getCloudtentaclesSessionStateByKey } from "../../../platforms/cloudtentacles/session-state-service.js";
+import type { JsonObject } from '../../../../types/json.js'
 import {
   normalizeCloudtentaclesDeviceId,
   normalizeCloudtentaclesDeviceType,
diff --git a/apps/backend/src/services/admin/platform-config/cloudtentacles/index.ts b/apps/backend/src/services/admin/platform-config/cloudtentacles/index.ts
index 45a902b2..df2403f5 100644
--- a/apps/backend/src/services/admin/platform-config/cloudtentacles/index.ts
+++ b/apps/backend/src/services/admin/platform-config/cloudtentacles/index.ts
@@ -1,3 +1,4 @@
+import type { JsonObject } from '../../../../types/json.js'
 import {
   getCloudtentaclesSourceByKey,
   getCloudtentaclesSourcesFilePath,
@@ -79,8 +80,6 @@ import type {
   AdminCloudtentaclesVirtualNumberInput,
 } from "../../../../types/admin/write-inputs.js";
 
-type JsonObject = Record<string, any>;
-
 type LocalCloudtentaclesTask = {
   taskId: number;
   taskNo: string;
diff --git a/apps/backend/src/services/admin/platform-config/cloudtentacles/mappers.ts b/apps/backend/src/services/admin/platform-config/cloudtentacles/mappers.ts
index 0c852ad4..e0d59080 100644
--- a/apps/backend/src/services/admin/platform-config/cloudtentacles/mappers.ts
+++ b/apps/backend/src/services/admin/platform-config/cloudtentacles/mappers.ts
@@ -1,3 +1,4 @@
+import type { JsonObject } from '../../../../types/json.js'
 import {
   maskPhone as maskPhoneValue,
   maskSecret as maskSecretValue,
@@ -7,8 +8,6 @@ import {
   normalizeCloudtentaclesDeviceType,
 } from "../../../platforms/cloudtentacles/defaults.js";
 
-type JsonObject = Record<string, any>
-
 export function maskSecret(value: unknown) {
   return maskSecretValue(value);
 }
diff --git a/apps/backend/src/services/admin/platform-config/cloudtentacles/payloads.ts b/apps/backend/src/services/admin/platform-config/cloudtentacles/payloads.ts
index 56b6bfa3..9e1ee3a3 100644
--- a/apps/backend/src/services/admin/platform-config/cloudtentacles/payloads.ts
+++ b/apps/backend/src/services/admin/platform-config/cloudtentacles/payloads.ts
@@ -1,5 +1,6 @@
 import { getCloudtentaclesSourceByKey } from "../../../platforms/cloudtentacles/source-config-service.js";
 import { getCloudtentaclesSessionStateByKey } from "../../../platforms/cloudtentacles/session-state-service.js";
+import type { JsonObject } from '../../../../types/json.js'
 import {
   normalizeCloudtentaclesDeviceId,
   normalizeCloudtentaclesDeviceType,
@@ -12,8 +13,6 @@ import { maskPhone, maskSecret } from "./mappers.js";
 
 const DEFAULT_CLOUDTENTACLES_BASE_URL = "https://123.207.217.176";
 
-type JsonObject = Record<string, any>
-
 function _resolveSourceKey(payload: JsonObject = {}) {
   return String(payload.sourceKey || "").trim() || "default";
 }
diff --git a/apps/backend/src/services/admin/platform-config/cloudtentacles/writes.ts b/apps/backend/src/services/admin/platform-config/cloudtentacles/writes.ts
index d72de37a..8ed13610 100644
--- a/apps/backend/src/services/admin/platform-config/cloudtentacles/writes.ts
+++ b/apps/backend/src/services/admin/platform-config/cloudtentacles/writes.ts
@@ -1,10 +1,9 @@
+import type { JsonObject } from '../../../../types/json.js'
 import {
   normalizeCloudtentaclesDeviceId,
   normalizeCloudtentaclesDeviceType,
 } from "../../../platforms/cloudtentacles/defaults.js";
 
-type JsonObject = Record<string, any>;
-
 export function normalizeAdminCloudtentaclesSourceConfigPayload(
   payload: JsonObject = {}
 ) {
diff --git a/apps/backend/src/services/admin/platform-config/kuaishou-feifei-service.ts b/apps/backend/src/services/admin/platform-config/kuaishou-feifei-service.ts
index e404167f..e7be0aa4 100644
--- a/apps/backend/src/services/admin/platform-config/kuaishou-feifei-service.ts
+++ b/apps/backend/src/services/admin/platform-config/kuaishou-feifei-service.ts
@@ -1,4 +1,5 @@
 import { getKuaishouFeifeiConfig } from '../../platforms/kuaishou-feifei/config.js'
+import type { JsonObject } from '../../../types/json.js'
 import {
   createKuaishouFeifeiOrder,
   listKuaishouFeifeiProducts,
@@ -16,8 +17,6 @@ import {
 import { normalizeCloudtentaclesMatchName } from '../../order/cloudtentacles-match-utils.js'
 import { createHttpError } from '../../../utils/http.js'
 
-type JsonObject = Record<string, any>
-
 export function getAdminKuaishouFeifeiConfig() {
   const source = getAdminEditableKuaishouFeifeiConfig()
   const effective = getKuaishouFeifeiConfig()
diff --git a/apps/backend/src/services/admin/platform-config/kuaishou-industry-service.ts b/apps/backend/src/services/admin/platform-config/kuaishou-industry-service.ts
index c9f7e4ef..03b7ac5c 100644
--- a/apps/backend/src/services/admin/platform-config/kuaishou-industry-service.ts
+++ b/apps/backend/src/services/admin/platform-config/kuaishou-industry-service.ts
@@ -1,5 +1,6 @@
 import { maskSecret } from '../../../utils/masking.js'
 import { createHttpError } from '../../../utils/http.js'
+import type { JsonObject } from '../../../types/json.js'
 import {
   findKuaishouIndustryShopConfig,
   getKuaishouIndustrySourceConfig,
@@ -13,8 +14,6 @@ import {
   refreshKuaishouIndustryAccessToken,
 } from '../../platforms/kuaishou-industry/token-service.js'
 
-type JsonObject = Record<string, any>
-
 const SECRET_FIELDS = [
   'appSecret',
   'signSecret',
diff --git a/apps/backend/src/services/admin/platform-config/ninetyone-service.ts b/apps/backend/src/services/admin/platform-config/ninetyone-service.ts
index 461c1960..eefa2bac 100644
--- a/apps/backend/src/services/admin/platform-config/ninetyone-service.ts
+++ b/apps/backend/src/services/admin/platform-config/ninetyone-service.ts
@@ -1,11 +1,10 @@
+import type { JsonObject } from '../../../types/json.js'
 import {
   failOpen91Order,
   listOpen91Orders,
   retryOpen91Order,
 } from '../../platforms/ninetyone/order-service.js'
 
-type JsonObject = Record<string, any>
-
 export async function getAdminNinetyoneOrders(query: JsonObject = {}) {
   return listOpen91Orders({
     page: Number(query.page || 1) || 1,
diff --git a/apps/backend/src/services/admin/platform-config/notification-service.ts b/apps/backend/src/services/admin/platform-config/notification-service.ts
index 472360e4..cf4d0e0b 100644
--- a/apps/backend/src/services/admin/platform-config/notification-service.ts
+++ b/apps/backend/src/services/admin/platform-config/notification-service.ts
@@ -1,3 +1,4 @@
+import type { JsonObject } from '../../../types/json.js'
 import {
   getNotificationConfig,
   getNotificationConfigFilePath,
@@ -24,8 +25,6 @@ import type {
   AdminScheduledJobsConfigInput,
 } from '../../../types/admin/write-inputs.js'
 
-type JsonObject = Record<string, any>
-
 export function getAdminNotificationConfig() {
   const config = getNotificationConfig()
 
diff --git a/apps/backend/src/services/admin/write/kuaishou-cloud-actions.ts b/apps/backend/src/services/admin/write/kuaishou-cloud-actions.ts
index 8d9277e1..042a6c80 100644
--- a/apps/backend/src/services/admin/write/kuaishou-cloud-actions.ts
+++ b/apps/backend/src/services/admin/write/kuaishou-cloud-actions.ts
@@ -1,6 +1,7 @@
 import { getOrderById } from '../../../repositories/order-repo.js'
 import { listTasksByOrderId, updateTask } from '../../../repositories/task-repo.js'
 import { createTaskEvent } from '../../../repositories/task-event-repo.js'
+import type { JsonObject } from '../../../types/json.js'
 import {
   findKuaishouIndustryVoucherByCode,
   listKuaishouIndustryVouchersByOid,
@@ -670,9 +671,9 @@ async function getRequiredIndustryVoucherForTask(task: TaskRow): Promise<Kuaisho
   })
 }
 
-function normalizeAdminTaskIndustryVoucherContext(value: unknown): Record<string, any> {
+function normalizeAdminTaskIndustryVoucherContext(value: unknown): JsonObject {
   return value && typeof value === 'object' && !Array.isArray(value)
-    ? value as Record<string, any>
+    ? value as JsonObject
     : {}
 }
 
diff --git a/apps/backend/src/services/admin/write/kuaishou-cloud-helpers.ts b/apps/backend/src/services/admin/write/kuaishou-cloud-helpers.ts
index 3358e966..f169d43c 100644
--- a/apps/backend/src/services/admin/write/kuaishou-cloud-helpers.ts
+++ b/apps/backend/src/services/admin/write/kuaishou-cloud-helpers.ts
@@ -1,8 +1,9 @@
 import { createHttpError } from '../../../utils/http.js'
 import type { HttpErrorLike } from '../../../utils/http.js'
-import {
-  resolvePersistedCloudtentaclesContextBySourceKeys,
-} from '../../fulfillment/kuaishou-cloud/cloudtentacles-context.js'
+import type { JsonObject } from '../../../types/json.js'
+import { resolvePersistedCloudtentaclesContextBySourceKeys } from '../../fulfillment/kuaishou-cloud/cloudtentacles-context.js'
+
+export type { JsonObject }
 
 export {
   KUAISHOU_CLOUD_FIXED_VN_KEY,
@@ -10,7 +11,6 @@ export {
   normalizeKuaishouCloudFlow,
   normalizeKuaishouCloudRoleInfo,
   resolveKuaishouCloudBindUrlExpiresAt,
-  type JsonObject,
 } from '../../fulfillment/kuaishou-cloud/domain.js'
 export {
   prepareKuaishouCloudBindResourceWithFallback,
@@ -34,17 +34,17 @@ export type CloudSkuLikeItem = {
   [key: string]: unknown
 }
 
-export type KuaishouCloudFlow = Record<string, any> & {
+export type KuaishouCloudFlow = JsonObject & {
   configId: string
   internalSkuCode: string
   internalSkuName: string
-  ticket: Record<string, any>
-  binding: Record<string, any>
-  role: Record<string, any>
-  purchase: Record<string, any>
-  dispatch: Record<string, any>
-  returnNumber: Record<string, any>
-  consume: Record<string, any>
+  ticket: JsonObject
+  binding: JsonObject
+  role: JsonObject
+  purchase: JsonObject
+  dispatch: JsonObject
+  returnNumber: JsonObject
+  consume: JsonObject
 }
 
 export type KuaishouCloudBindingResources = {
diff --git a/apps/backend/src/services/bootstrap/fulfillment-bootstrap-service.ts b/apps/backend/src/services/bootstrap/fulfillment-bootstrap-service.ts
index e6e4d145..b3b2bb59 100644
--- a/apps/backend/src/services/bootstrap/fulfillment-bootstrap-service.ts
+++ b/apps/backend/src/services/bootstrap/fulfillment-bootstrap-service.ts
@@ -1,3 +1,4 @@
+import type { JsonObject } from '../../types/json.js'
 import {
   listFulfillmentProfileRequirements,
   replaceFulfillmentProfileRequirements,
@@ -6,7 +7,6 @@ import {
 } from '../../repositories/fulfillment-profile-repo.js'
 import { nowIso } from '../../utils/time.js'
 
-type JsonObject = Record<string, any>
 type CoreProfile = {
   profileKey: string
   name: string
diff --git a/apps/backend/src/services/claim/claim-identity.ts b/apps/backend/src/services/claim/claim-identity.ts
index 5e95c486..fc7dbcfd 100644
--- a/apps/backend/src/services/claim/claim-identity.ts
+++ b/apps/backend/src/services/claim/claim-identity.ts
@@ -2,6 +2,7 @@ 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 { TaskRow } from '../../types/repository/rows.js'
+import type { JsonObject } from '../../types/json.js'
 
 export type ClaimIdentity = {
   expectedUid: string
@@ -9,8 +10,6 @@ export type ClaimIdentity = {
   source: string
 }
 
-type JsonObject = Record<string, any>
-
 const CLAIM_UID_MAX_LENGTH = 64
 
 export function normalizeClaimUid(value: unknown): string {
@@ -131,10 +130,22 @@ 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 } = {},
-) {
+): ClaimIdentityAdminSummary {
   const identity = getClaimIdentityFromContext(context)
   const boundUid = resolveBoundRoleUid(options.flowLike) || normalizeClaimUid(options.taskRoleId)
   const flow = isPlainObject(options.flowLike) ? options.flowLike : {}
diff --git a/apps/backend/src/services/claim/kuaishou-cloud-claim-context.ts b/apps/backend/src/services/claim/kuaishou-cloud-claim-context.ts
index 0df49ca1..43323cee 100644
--- a/apps/backend/src/services/claim/kuaishou-cloud-claim-context.ts
+++ b/apps/backend/src/services/claim/kuaishou-cloud-claim-context.ts
@@ -11,9 +11,9 @@ import { buildClaimUrl } from './claim-service.js'
 import { buildClaimIdentityPayload, getClaimIdentityFromContext } from './claim-identity.js'
 import { resolveKuaishouFeifeiH5UrlWithUid } from '../fulfillment/kuaishou-feifei/index.js'
 import type { ClaimTokenRow, OrderItemRow, OrderRow, TaskRow } from '../../types/repository/rows.js'
+import { asJsonObject, type  JsonObject  } from '../../types/json.js'
 
 export const CLAIM_TERMINAL_STATUSES = new Set([TASK_STATUS.EXPIRED, TASK_STATUS.CLOSED])
-type JsonObject = Record<string, any>
 type ClaimContext = {
   claimToken: ClaimTokenRow
   task: TaskRow
@@ -343,13 +343,13 @@ export function mapClaimKuaishouCloudFulfillment(task: TaskRow, order: OrderRow)
     return null
   }
 
-  const binding = source.binding && typeof source.binding === 'object' ? source.binding : {}
-  const role = source.role && typeof source.role === 'object' ? source.role : {}
-  const purchase = source.purchase && typeof source.purchase === 'object' ? source.purchase : {}
-  const ticket = source.ticket && typeof source.ticket === 'object' ? source.ticket : {}
-  const dispatch = source.dispatch && typeof source.dispatch === 'object' ? source.dispatch : {}
-  const returnNumber = source.returnNumber && typeof source.returnNumber === 'object' ? source.returnNumber : {}
-  const consume = source.consume && typeof source.consume === 'object' ? source.consume : {}
+  const binding = asJsonObject(source.binding)
+  const role = asJsonObject(source.role)
+  const purchase = asJsonObject(source.purchase)
+  const ticket = asJsonObject(source.ticket)
+  const dispatch = asJsonObject(source.dispatch)
+  const returnNumber = asJsonObject(source.returnNumber)
+  const consume = asJsonObject(source.consume)
   const roleName = String(role.name || binding.roleName || '').trim()
   const roleId = String(role.rid || binding.roleId || '').trim()
   const defaultRoleName = String(role.defaultName || role.defaultRoleName || '').trim()
diff --git a/apps/backend/src/services/claim/kuaishou-cloud-claim-service.ts b/apps/backend/src/services/claim/kuaishou-cloud-claim-service.ts
index d6171a6c..cda61e20 100644
--- a/apps/backend/src/services/claim/kuaishou-cloud-claim-service.ts
+++ b/apps/backend/src/services/claim/kuaishou-cloud-claim-service.ts
@@ -3,6 +3,7 @@ import { getTaskById, updateTask, updateTaskStatusIfCurrent } from '../../reposi
 import { createHttpError } from '../../utils/http.js'
 import { parseTaskContext as parseTaskContextValue } from '../../utils/task-json.js'
 import { addHours, nowIso } from '../../utils/time.js'
+import { asJsonObject, type  JsonObject  } from '../../types/json.js'
 import {
   TASK_STATUS,
   canRedeemKuaishouCloudClaimStatus,
@@ -29,7 +30,6 @@ import { buildClaimDetailPayload, getClaimContext } from './kuaishou-cloud-claim
 import { syncKuaishouCloudRoleInfo } from './kuaishou-cloud-sync-service.js'
 import type { TaskRow } from '../../types/repository/rows.js'
 
-type JsonObject = Record<string, any>
 type ClaimDetailPayload = ReturnType<typeof buildClaimDetailPayload>
 
 async function verifyIndustryVoucherTicket(
@@ -537,9 +537,7 @@ function isKuaishouCloudMockTask(task: Partial<TaskRow> | null | undefined) {
 
 function isKuaishouCloudMockContext(context: JsonObject = {}) {
   const flow =
-    context.kuaishouCloudFulfillment && typeof context.kuaishouCloudFulfillment === 'object'
-      ? context.kuaishouCloudFulfillment
-      : {}
+    asJsonObject(context.kuaishouCloudFulfillment)
   const mock = flow.mock && typeof flow.mock === 'object' ? flow.mock : context.mock
 
   return Boolean(mock && typeof mock === 'object' && mock.enabled === true)
@@ -558,7 +556,7 @@ function buildMockVerifiedKuaishouCloudFlow(value: unknown, timestamp: string) {
   return {
     ...flow,
     mock: {
-      ...(source.mock && typeof source.mock === 'object' ? source.mock : {}),
+      ...(asJsonObject(source.mock)),
       enabled: true,
     },
     binding: {
@@ -593,7 +591,7 @@ async function completeMockKuaishouCloudClaimTask(task: TaskRow, timestamp: stri
   const nextFlow = {
     ...flow,
     mock: {
-      ...(source.mock && typeof source.mock === 'object' ? source.mock : {}),
+      ...(asJsonObject(source.mock)),
       enabled: true,
     },
     dispatch: {
diff --git a/apps/backend/src/services/claim/kuaishou-cloud-sync-service.ts b/apps/backend/src/services/claim/kuaishou-cloud-sync-service.ts
index 3db29112..5b18fbf7 100644
--- a/apps/backend/src/services/claim/kuaishou-cloud-sync-service.ts
+++ b/apps/backend/src/services/claim/kuaishou-cloud-sync-service.ts
@@ -5,6 +5,7 @@ import {
   refreshKuaishouCloudTaskRoleInfo,
 } from '../fulfillment/kuaishou-cloud/index.js'
 import type { TaskRow } from '../../types/repository/rows.js'
+import { parseTaskContext as parseTaskContextValue } from '../../utils/task-json.js'
 
 export async function syncKuaishouCloudRoleInfo(task: TaskRow) {
   const flow = normalizeKuaishouCloudFlow(parseTaskContext(task).kuaishouCloudFulfillment)
@@ -45,20 +46,6 @@ export async function syncKuaishouCloudRoleInfo(task: TaskRow) {
   }
 }
 
-function parseTaskContext(task: Partial<TaskRow> | null | undefined): Record<string, any> {
-  const rawValue = task?.context_json
-
-  if (!rawValue) {
-    return {}
-  }
-
-  if (typeof rawValue === 'object') {
-    return rawValue
-  }
-
-  try {
-    return JSON.parse(String(rawValue || '{}'))
-  } catch {
-    return {}
-  }
+function parseTaskContext(task: Partial<TaskRow> | null | undefined) {
+  return parseTaskContextValue(task)
 }
diff --git a/apps/backend/src/services/fulfillment/kuaishou-cloud/dispatch-role-sync.ts b/apps/backend/src/services/fulfillment/kuaishou-cloud/dispatch-role-sync.ts
index 9dc6582f..9fc188d3 100644
--- a/apps/backend/src/services/fulfillment/kuaishou-cloud/dispatch-role-sync.ts
+++ b/apps/backend/src/services/fulfillment/kuaishou-cloud/dispatch-role-sync.ts
@@ -8,6 +8,7 @@ import {
   isClaimUidMatched,
   normalizeClaimUid,
 } from "../../claim/claim-identity.js";
+import { asJsonObject } from "../../../types/json.js";
 import {
   normalizeKuaishouCloudFlow,
   normalizeKuaishouCloudRoleInfo,
@@ -26,13 +27,9 @@ export async function syncKuaishouCloudRoleInfoBeforeDispatch(
     String(input.errorCodePrefix || "kuaishou_cloud").trim() ||
     "kuaishou_cloud";
   const cloudContext =
-    input.cloudContext && typeof input.cloudContext === "object"
-      ? input.cloudContext
-      : {};
+    asJsonObject(input.cloudContext);
   const taskContext =
-    input.taskContext && typeof input.taskContext === "object"
-      ? input.taskContext
-      : {};
+    asJsonObject(input.taskContext);
   const flow = normalizeKuaishouCloudFlow(
     input.flow || taskContext.kuaishouCloudFulfillment
   );
diff --git a/apps/backend/src/services/fulfillment/kuaishou-cloud/domain.ts b/apps/backend/src/services/fulfillment/kuaishou-cloud/domain.ts
index 9bbfeffe..2ecb505f 100644
--- a/apps/backend/src/services/fulfillment/kuaishou-cloud/domain.ts
+++ b/apps/backend/src/services/fulfillment/kuaishou-cloud/domain.ts
@@ -1,10 +1,11 @@
 import { resolveCloudtentaclesConfig } from '../../platforms/cloudtentacles/helpers.js'
 import { maskCode as maskCodeValue, maskPhone as maskPhoneValue } from '../../../utils/masking.js'
+import { asJsonObject, type  JsonObject  } from '../../../types/json.js'
+
+export type { JsonObject }
 
 export const KUAISHOU_CLOUD_FIXED_VN_KEY = '1'
 
-export type JsonObject = Record<string, any>
-
 const KUAISHOU_CLOUD_EXECUTOR_KEYS = new Set(['kuaishou_ct_assisted', 'kuaishou-industry'])
 
 export function isKuaishouCloudTask(task: unknown) {
@@ -19,15 +20,15 @@ export function isIndustryEVoucherTask(task: unknown) {
 
 export function normalizeKuaishouCloudFlow(value: unknown) {
   const source: JsonObject = value && typeof value === 'object' ? (value as JsonObject) : {}
-  const binding = source.binding && typeof source.binding === 'object' ? source.binding : {}
-  const role = source.role && typeof source.role === 'object' ? source.role : {}
-  const purchase = source.purchase && typeof source.purchase === 'object' ? source.purchase : {}
-  const dispatch = source.dispatch && typeof source.dispatch === 'object' ? source.dispatch : {}
+  const binding = asJsonObject(source.binding)
+  const role = asJsonObject(source.role)
+  const purchase = asJsonObject(source.purchase)
+  const dispatch = asJsonObject(source.dispatch)
   const returnNumber =
-    source.returnNumber && typeof source.returnNumber === 'object' ? source.returnNumber : {}
-  const consume = source.consume && typeof source.consume === 'object' ? source.consume : {}
-  const ticket = source.ticket && typeof source.ticket === 'object' ? source.ticket : {}
-  const rebind = source.rebind && typeof source.rebind === 'object' ? source.rebind : {}
+    asJsonObject(source.returnNumber)
+  const consume = asJsonObject(source.consume)
+  const ticket = asJsonObject(source.ticket)
+  const rebind = asJsonObject(source.rebind)
   const deliveryItems = normalizeDeliveryItems(source, binding)
 
   const roleName = String(role.name || binding.roleName || '').trim()
@@ -180,7 +181,7 @@ function normalizeRoleNameForCompare(value: unknown) {
 
 export function normalizeKuaishouCloudDeliveryItems(value: unknown) {
   const source: JsonObject = value && typeof value === 'object' ? (value as JsonObject) : {}
-  const binding = source.binding && typeof source.binding === 'object' ? source.binding : {}
+  const binding = asJsonObject(source.binding)
   return normalizeDeliveryItems(source, binding)
 }
 
diff --git a/apps/backend/src/services/fulfillment/kuaishou-cloud/task-context.ts b/apps/backend/src/services/fulfillment/kuaishou-cloud/task-context.ts
index bd091073..472a2ea5 100644
--- a/apps/backend/src/services/fulfillment/kuaishou-cloud/task-context.ts
+++ b/apps/backend/src/services/fulfillment/kuaishou-cloud/task-context.ts
@@ -1,7 +1,6 @@
 import { parseTaskContext as parseTaskContextValue } from "../../../utils/task-json.js";
 import type { TaskRow } from "../../../types/repository/rows.js";
-
-type JsonObject = Record<string, any>;
+import type { JsonObject } from '../../../types/json.js'
 
 export function normalizeActor(actor: unknown) {
   if (!actor || typeof actor !== "object") {
diff --git a/apps/backend/src/services/fulfillment/kuaishou-feifei/index.ts b/apps/backend/src/services/fulfillment/kuaishou-feifei/index.ts
index 3bb5e4aa..26c61958 100644
--- a/apps/backend/src/services/fulfillment/kuaishou-feifei/index.ts
+++ b/apps/backend/src/services/fulfillment/kuaishou-feifei/index.ts
@@ -8,6 +8,7 @@ import { parseTaskContext } from '../../../utils/task-json.js'
 import { nowIso } from '../../../utils/time.js'
 import { TASK_STATUS } from '../../../domain/task-status.js'
 import { appendUidToUrl, getClaimIdentityFromContext } from '../../claim/claim-identity.js'
+import type { JsonObject } from '../../../types/json.js'
 import {
   createKuaishouFeifeiOrder,
   queryKuaishouFeifeiOrder,
@@ -17,8 +18,6 @@ import { buildKuaishouIndustryVoucherContext } from '../../platforms/kuaishou-in
 import { normalizeShortLinkPayload } from '../../short-links/short-link-service.js'
 import type { TaskRow } from '../../../types/repository/rows.js'
 
-type JsonObject = Record<string, any>
-
 export function isKuaishouFeifeiTask(task: Partial<TaskRow> | null | undefined) {
   return String(task?.executor_key || '').trim() === 'kuaishou_feifei'
 }
diff --git a/apps/backend/src/services/notification/config-service.ts b/apps/backend/src/services/notification/config-service.ts
index d6e6e216..7a6b9e06 100644
--- a/apps/backend/src/services/notification/config-service.ts
+++ b/apps/backend/src/services/notification/config-service.ts
@@ -1,4 +1,5 @@
 import path from 'node:path'
+import type { JsonObject } from '../../types/json.js'
 
 import { APP_CONFIG_KEYS } from '../../config/app-config-keys.js'
 import { PROJECT_ROOT } from '../../config/runtime.js'
@@ -10,7 +11,6 @@ import {
 const NOTIFICATION_CONFIG_FILE_PATH = path.join(PROJECT_ROOT, 'data', 'notification-config.json')
 const DEFAULT_BARK_SERVER_URL = 'https://api.day.app'
 
-type JsonObject = Record<string, any>
 type NotificationRecipient = {
   id: string
   name: string
diff --git a/apps/backend/src/services/notification/notification-service.ts b/apps/backend/src/services/notification/notification-service.ts
index c4e667cd..32df0d96 100644
--- a/apps/backend/src/services/notification/notification-service.ts
+++ b/apps/backend/src/services/notification/notification-service.ts
@@ -1,4 +1,5 @@
 import { logWarn } from '../../utils/logger.js'
+import type { JsonObject } from '../../types/json.js'
 import {
   getNotificationConfig,
   listEnabledBarkRecipients,
@@ -7,7 +8,6 @@ import {
 import { sendBarkNotification } from './bark-service.js'
 import { sendWpushNotification } from './wpush-service.js'
 
-type JsonObject = Record<string, any>
 type NotificationResult = ReturnType<typeof mapNotificationResult>
 type NotificationInput = {
   title?: string
diff --git a/apps/backend/src/services/open-91/crypto.ts b/apps/backend/src/services/open-91/crypto.ts
index 6b4be93d..314cbc30 100644
--- a/apps/backend/src/services/open-91/crypto.ts
+++ b/apps/backend/src/services/open-91/crypto.ts
@@ -1,11 +1,10 @@
 import crypto from 'node:crypto'
+import type { JsonObject } from '../../types/json.js'
 
 import { createHttpError } from '../../utils/http.js'
 import { assertOpen91Config } from './config.js'
 import { normalizeOpen91String } from './payload.js'
 
-type JsonObject = Record<string, any>
-
 export function buildOpen91SignSource(params: JsonObject = {}, { secret } = assertOpen91Config()) {
   const entries = Object.entries(params)
     .filter(([key]) => key !== 'sign')
diff --git a/apps/backend/src/services/open-91/order-query-service.ts b/apps/backend/src/services/open-91/order-query-service.ts
index 3fee453b..5f6df514 100644
--- a/apps/backend/src/services/open-91/order-query-service.ts
+++ b/apps/backend/src/services/open-91/order-query-service.ts
@@ -3,6 +3,7 @@ import { listKuaishouIndustryVouchersByOid } from '../../repositories/kuaishou-i
 import { listTasksByOrderId } from '../../repositories/task-repo.js'
 import { resolveTaskDeliveryLink } from '../fulfillment/delivery-link-service.js'
 import { logIntegration } from '../../utils/logger.js'
+import { asJsonObject, type  JsonObject  } from '../../types/json.js'
 import {
   OPEN_91_MANUAL_FAILED_STATUS,
   OPEN_91_PENDING_CONFIG_STATUS,
@@ -32,8 +33,6 @@ import {
 } from './response.js'
 import type { KuaishouIndustryVoucherRow, OrderRow, TaskRow } from '../../types/repository/rows.js'
 
-type JsonObject = Record<string, any>
-
 export async function queryOpen91Order(payload: JsonObject = {}, { requestId = '' } = {}) {
   const config = assertOpen91Config()
   const normalized = normalizeOpen91QueryPayload(payload)
@@ -245,7 +244,7 @@ function parseJsonObject(value: unknown): JsonObject {
 
   try {
     const parsed = JSON.parse(String(value || '{}'))
-    return parsed && typeof parsed === 'object' && !Array.isArray(parsed) ? parsed : {}
+    return asJsonObject(parsed)
   } catch {
     return {}
   }
diff --git a/apps/backend/src/services/open-91/payload.ts b/apps/backend/src/services/open-91/payload.ts
index 80edbf6e..3a064fd9 100644
--- a/apps/backend/src/services/open-91/payload.ts
+++ b/apps/backend/src/services/open-91/payload.ts
@@ -1,7 +1,6 @@
 import { createHttpError } from '../../utils/http.js'
 import { assertOpen91Config } from './config.js'
-
-type JsonObject = Record<string, any>
+import type { JsonObject } from '../../types/json.js'
 
 export function normalizeOpen91String(value: unknown) {
   return String(value || '').trim()
diff --git a/apps/backend/src/services/open-91/response.ts b/apps/backend/src/services/open-91/response.ts
index 3d9f5ece..10ebe62c 100644
--- a/apps/backend/src/services/open-91/response.ts
+++ b/apps/backend/src/services/open-91/response.ts
@@ -1,3 +1,4 @@
+import type { JsonObject } from '../../types/json.js'
 import {
   OPEN_91_DEFAULT_FAIL_CODE,
   OPEN_91_SUCCESS_MESSAGE,
@@ -5,8 +6,6 @@ import {
 import { isOpen91FailedTaskStatus } from '../../domain/task-status.js'
 import { normalizeOpen91String } from './payload.js'
 
-type JsonObject = Record<string, any>
-
 export function buildOpen91SuccessResponse(data: unknown, message = OPEN_91_SUCCESS_MESSAGE) {
   return {
     code: 200,
diff --git a/apps/backend/src/services/order/cloudtentacles-name-match-service.ts b/apps/backend/src/services/order/cloudtentacles-name-match-service.ts
index ba57a025..7ce13bac 100644
--- a/apps/backend/src/services/order/cloudtentacles-name-match-service.ts
+++ b/apps/backend/src/services/order/cloudtentacles-name-match-service.ts
@@ -1,3 +1,4 @@
+import type { JsonObject } from '../../types/json.js'
 import {
   listCloudtentaclesSources,
 } from '../platforms/cloudtentacles/source-config-service.js'
@@ -17,8 +18,6 @@ import {
 } from './cloudtentacles-override-rule-service.js'
 import { normalizeCloudtentaclesMatchName } from './cloudtentacles-match-utils.js'
 
-type JsonObject = Record<string, any>
-
 type CloudtentaclesSource = {
   key?: string
   label?: string
diff --git a/apps/backend/src/services/order/cloudtentacles-override-rule-service.ts b/apps/backend/src/services/order/cloudtentacles-override-rule-service.ts
index d90fd754..725589e7 100644
--- a/apps/backend/src/services/order/cloudtentacles-override-rule-service.ts
+++ b/apps/backend/src/services/order/cloudtentacles-override-rule-service.ts
@@ -1,4 +1,5 @@
 import path from 'node:path'
+import type { JsonObject } from '../../types/json.js'
 
 import { APP_CONFIG_KEYS } from '../../config/app-config-keys.js'
 import { PROJECT_ROOT } from '../../config/runtime.js'
@@ -14,8 +15,6 @@ const CLOUDTENTACLES_OVERRIDE_RULE_FILE_PATH = path.join(
   'cloudtentacles-override-rules.json',
 )
 
-type JsonObject = Record<string, any>
-
 export type CloudtentaclesOverrideDeliveryItem = {
   cloudSkuId: number
   cloudSkuName: string
diff --git a/apps/backend/src/services/order/delivery-task-service.test.ts b/apps/backend/src/services/order/delivery-task-service.test.ts
index a45dd5c0..e30b0a8f 100644
--- a/apps/backend/src/services/order/delivery-task-service.test.ts
+++ b/apps/backend/src/services/order/delivery-task-service.test.ts
@@ -2,22 +2,111 @@ import assert from 'node:assert/strict'
 import test from 'node:test'
 
 import { syncDeliveryTasksForOrderWithDeps } from './delivery-task-service.js'
+import type { OrderItemRow, OrderRow, TaskRow } from '../../types/repository/rows.js'
+import type { JsonObject } from '../../types/json.js'
+
+type CreatedTaskInput = {
+  orderItemId?: number
+  contextJson?: string
+  taskStatus?: string
+  executorKey?: string
+  [key: string]: unknown
+}
+
+function stubOrder(patch: Partial<OrderRow> & Pick<OrderRow, 'id' | 'platform_order_id'>): OrderRow {
+  return {
+    id: patch.id,
+    order_id: patch.id,
+    provider: patch.provider || 'open_91',
+    platform: patch.platform || 'kuaishou',
+    shop_id: patch.shop_id || 'shop-1',
+    shop_name: patch.shop_name || '测试店铺',
+    platform_order_id: patch.platform_order_id,
+    order_status: patch.order_status || 'created',
+    pay_status: patch.pay_status || 'pending_payment',
+    buyer_id: '',
+    buyer_name: '',
+    receiver_contact: '',
+    total_amount: 0,
+    currency: 'CNY',
+    raw_payload_json: '{}',
+    paid_at: null,
+    created_at: '2026-05-29T00:00:00.000Z',
+    updated_at: '2026-05-29T00:00:00.000Z',
+    ...patch,
+  } as OrderRow
+}
+
+function stubOrderItem(
+  patch: Partial<OrderItemRow> & Pick<OrderItemRow, 'id' | 'order_id' | 'sku_code'>,
+): OrderItemRow {
+  return {
+    id: patch.id,
+    order_id: patch.order_id,
+    sku_code: patch.sku_code,
+    sku_name: patch.sku_name || patch.sku_code,
+    quantity: patch.quantity || 1,
+    spec_json: '{}',
+    item_snapshot_json: patch.item_snapshot_json || {},
+    created_at: '2026-05-29T00:00:00.000Z',
+    updated_at: '2026-05-29T00:00:00.000Z',
+    ...patch,
+  } as OrderItemRow
+}
+
+function stubCreatedTask(id: number, input: CreatedTaskInput): TaskRow {
+  return {
+    id,
+    order_id: 0,
+    order_item_id: Number(input.orderItemId || 0),
+    unit_index: 1,
+    platform_order_id: '',
+    profile_id: 0,
+    task_no: 'DT-test',
+    executor_key: String(input.executorKey || ''),
+    task_status: String(input.taskStatus || 'pending'),
+    delivery_status: 'pending',
+    result_code: '',
+    result_message: '',
+    automation_mode: 'manual',
+    requires_claim: true,
+    user_action_status: 'pending_claim',
+    attempt_count: 0,
+    runtime_session_id: '',
+    login_type: '',
+    nickname: '',
+    role_name: '',
+    role_id: '',
+    area: '',
+    partition_name: '',
+    claim_token: '',
+    primary_claim_token: '',
+    primary_claim_token_id: null,
+    primary_claim_token_status: '',
+    artifacts_json: '{}',
+    context_json: String(input.contextJson || '{}'),
+    screenshot_path: '',
+    last_error: '',
+    retry_count: 0,
+    created_at: '2026-05-29T00:00:00.000Z',
+    updated_at: '2026-05-29T00:00:00.000Z',
+    claimed_at: null,
+    role_confirmed_at: null,
+    redeemed_at: null,
+  } as TaskRow
+}
 
 test('syncDeliveryTasksForOrder 多账号候选时不提前固定 cloudtentacles 账号', async () => {
-  const createdInputs: any[] = []
+  const createdInputs: CreatedTaskInput[] = []
 
   await syncDeliveryTasksForOrderWithDeps(
-    {
+    stubOrder({
       id: 1,
       pay_status: 'pending_payment',
-      provider: 'open_91',
-      platform: 'kuaishou',
-      shop_id: 'shop-1',
-      shop_name: '测试店铺',
       platform_order_id: '2614900602069169',
-    } as any,
+    }),
     [
-      {
+      stubOrderItem({
         id: 10,
         order_id: 1,
         sku_code: 'SKU-1',
@@ -37,9 +126,9 @@ test('syncDeliveryTasksForOrder 多账号候选时不提前固定 cloudtentacles
               },
             ],
           },
-        },
-      },
-    ] as any,
+        } as JsonObject,
+      }),
+    ],
     {
       listTasksByOrderId: async () => [],
       getFulfillmentProfileByKey: async () => ({
@@ -48,44 +137,33 @@ test('syncDeliveryTasksForOrder 多账号候选时不提前固定 cloudtentacles
         profile_name: 'kuaishou-lewan 履约',
         executor_key: 'kuaishou_ct_assisted',
       }),
-      createTask: async (input: any) => {
-        createdInputs.push(input)
-        return {
-          id: 100,
-          order_item_id: input.orderItemId,
-          context_json: input.contextJson,
-          task_status: input.taskStatus,
-          executor_key: input.executorKey,
-        } as any
+      createTask: async (input) => {
+        createdInputs.push(input as CreatedTaskInput)
+        return stubCreatedTask(100, input as CreatedTaskInput)
       },
       nowIso: () => '2026-05-29T09:05:46.658Z',
       randomId: () => 'DT-test',
     },
   )
 
-  const context = JSON.parse(createdInputs[0].contextJson)
-  assert.deepEqual(context.kuaishouCloudFulfillment.binding.cloudSourceKeys, [
-    'account-a',
-    'account-b',
-  ])
-  assert.equal(context.kuaishouCloudFulfillment.binding.resolvedSourceKey, '')
+  const context = JSON.parse(String(createdInputs[0]?.contextJson || '{}')) as JsonObject
+  const fulfillment = context.kuaishouCloudFulfillment as JsonObject
+  const binding = fulfillment.binding as JsonObject
+  assert.deepEqual(binding.cloudSourceKeys, ['account-a', 'account-b'])
+  assert.equal(binding.resolvedSourceKey, '')
 })
 
 test('syncDeliveryTasksForOrder 单账号候选时保留固定 cloudtentacles 账号', async () => {
-  const createdInputs: any[] = []
+  const createdInputs: CreatedTaskInput[] = []
 
   await syncDeliveryTasksForOrderWithDeps(
-    {
+    stubOrder({
       id: 2,
       pay_status: 'pending_payment',
-      provider: 'open_91',
-      platform: 'kuaishou',
-      shop_id: 'shop-1',
-      shop_name: '测试店铺',
       platform_order_id: '2614900602069170',
-    } as any,
+    }),
     [
-      {
+      stubOrderItem({
         id: 11,
         order_id: 2,
         sku_code: 'SKU-1',
@@ -97,9 +175,9 @@ test('syncDeliveryTasksForOrder 单账号候选时保留固定 cloudtentacles 
             cloudSkuId: 74,
             cloudSkuName: '荣耀勋章礼包（30个）',
           },
-        },
-      },
-    ] as any,
+        } as JsonObject,
+      }),
+    ],
     {
       listTasksByOrderId: async () => [],
       getFulfillmentProfileByKey: async () => ({
@@ -108,22 +186,18 @@ test('syncDeliveryTasksForOrder 单账号候选时保留固定 cloudtentacles 
         profile_name: 'kuaishou-lewan 履约',
         executor_key: 'kuaishou_ct_assisted',
       }),
-      createTask: async (input: any) => {
-        createdInputs.push(input)
-        return {
-          id: 101,
-          order_item_id: input.orderItemId,
-          context_json: input.contextJson,
-          task_status: input.taskStatus,
-          executor_key: input.executorKey,
-        } as any
+      createTask: async (input) => {
+        createdInputs.push(input as CreatedTaskInput)
+        return stubCreatedTask(101, input as CreatedTaskInput)
       },
       nowIso: () => '2026-05-29T09:05:46.658Z',
       randomId: () => 'DT-test',
     },
   )
 
-  const context = JSON.parse(createdInputs[0].contextJson)
-  assert.deepEqual(context.kuaishouCloudFulfillment.binding.cloudSourceKeys, ['account-a'])
-  assert.equal(context.kuaishouCloudFulfillment.binding.resolvedSourceKey, 'account-a')
+  const context = JSON.parse(String(createdInputs[0]?.contextJson || '{}')) as JsonObject
+  const fulfillment = context.kuaishouCloudFulfillment as JsonObject
+  const binding = fulfillment.binding as JsonObject
+  assert.deepEqual(binding.cloudSourceKeys, ['account-a'])
+  assert.equal(binding.resolvedSourceKey, 'account-a')
 })
diff --git a/apps/backend/src/services/platforms/cloudtentacles/catalog-service.ts b/apps/backend/src/services/platforms/cloudtentacles/catalog-service.ts
index 9b86e2d0..c51433bc 100644
--- a/apps/backend/src/services/platforms/cloudtentacles/catalog-service.ts
+++ b/apps/backend/src/services/platforms/cloudtentacles/catalog-service.ts
@@ -1,8 +1,7 @@
 import { createHttpError, type HttpErrorLike } from '../../../utils/http.js'
 import { cloudtentaclesRequest } from './http-client.js'
 import { resolveCloudtentaclesConfig } from './helpers.js'
-
-type JsonObject = Record<string, any>
+import type { JsonObject } from '../../../types/json.js'
 
 export async function getCloudtentaclesAsset(payload: JsonObject = {}) {
   const token = requireToken(payload.token, 'cloudtentacles 余额查询缺少 token', 'cloudtentacles_asset_missing_token')
diff --git a/apps/backend/src/services/platforms/cloudtentacles/crypto-service.ts b/apps/backend/src/services/platforms/cloudtentacles/crypto-service.ts
index 22148d77..7e6f2ba8 100644
--- a/apps/backend/src/services/platforms/cloudtentacles/crypto-service.ts
+++ b/apps/backend/src/services/platforms/cloudtentacles/crypto-service.ts
@@ -1,10 +1,9 @@
 import { createHash, constants, publicEncrypt } from 'node:crypto'
+import type { JsonObject } from '../../../types/json.js'
 
 import { createHttpError } from '../../../utils/http.js'
 import { resolveCloudtentaclesConfig } from './helpers.js'
 
-type JsonObject = Record<string, any>
-
 export function md5CloudtentaclesPassword(password: unknown) {
   return createHash('md5').update(String(password || ''), 'utf8').digest('hex')
 }
diff --git a/apps/backend/src/services/platforms/cloudtentacles/debug-flow-service.ts b/apps/backend/src/services/platforms/cloudtentacles/debug-flow-service.ts
index 4f933f65..eb257c19 100644
--- a/apps/backend/src/services/platforms/cloudtentacles/debug-flow-service.ts
+++ b/apps/backend/src/services/platforms/cloudtentacles/debug-flow-service.ts
@@ -1,6 +1,7 @@
 import { createHttpError } from '../../../utils/http.js'
 import { getCloudtentaclesAsset, listCloudtentaclesSku, buyCloudtentaclesSku } from './catalog-service.js'
 import { getCloudtentaclesKnapsack } from './knapsack-service.js'
+import type { JsonObject } from '../../../types/json.js'
 import {
   appointCloudtentaclesVirtualNumber,
   fetchCloudtentaclesVirtualNumberCode,
@@ -9,7 +10,6 @@ import {
   verifyCloudtentaclesLoginCode,
 } from './virtual-number-service.js'
 
-type JsonObject = Record<string, any>
 type FlowStepOptions = {
   retries?: number
   retryDelayMs?: number
diff --git a/apps/backend/src/services/platforms/cloudtentacles/helpers.ts b/apps/backend/src/services/platforms/cloudtentacles/helpers.ts
index a97ffcc9..df4e97d7 100644
--- a/apps/backend/src/services/platforms/cloudtentacles/helpers.ts
+++ b/apps/backend/src/services/platforms/cloudtentacles/helpers.ts
@@ -1,4 +1,5 @@
 import { runtimeConfig } from '../../../config/runtime.js'
+import type { JsonObject } from '../../../types/json.js'
 
 import type { RuntimeConfig } from '../../../types/runtime-config.js'
 import {
@@ -9,8 +10,6 @@ import {
 } from './defaults.js'
 
 type CloudtentaclesRuntimeConfig = RuntimeConfig['platforms']['cloudtentacles']
-type JsonObject = Record<string, any>
-
 export function resolveCloudtentaclesConfig(overrides: Partial<CloudtentaclesRuntimeConfig> = {}) {
   const baseConfig = runtimeConfig.platforms?.cloudtentacles || {
     baseUrl: '',
diff --git a/apps/backend/src/services/platforms/cloudtentacles/http-client.ts b/apps/backend/src/services/platforms/cloudtentacles/http-client.ts
index f2aee1ce..8e1bc810 100644
--- a/apps/backend/src/services/platforms/cloudtentacles/http-client.ts
+++ b/apps/backend/src/services/platforms/cloudtentacles/http-client.ts
@@ -1,12 +1,12 @@
 import http from 'node:http'
 import https from 'node:https'
+import type { JsonObject } from '../../../types/json.js'
 
 import { createHttpError } from '../../../utils/http.js'
 import { logInfo, logWarn } from '../../../utils/logger.js'
 import { notifyCloudtentaclesAuthExpired } from '../../notification/domain-notifications.js'
 import { buildCloudtentaclesHeaders, buildCloudtentaclesUrl, resolveCloudtentaclesConfig } from './helpers.js'
 
-type JsonObject = Record<string, any>
 type HeaderAdapter = {
   get(name: unknown): string | null
 }
diff --git a/apps/backend/src/services/platforms/cloudtentacles/knapsack-service.ts b/apps/backend/src/services/platforms/cloudtentacles/knapsack-service.ts
index b36232c5..889cc770 100644
--- a/apps/backend/src/services/platforms/cloudtentacles/knapsack-service.ts
+++ b/apps/backend/src/services/platforms/cloudtentacles/knapsack-service.ts
@@ -1,8 +1,7 @@
 import { createHttpError } from '../../../utils/http.js'
 import { cloudtentaclesRequest } from './http-client.js'
 import { resolveCloudtentaclesConfig } from './helpers.js'
-
-type JsonObject = Record<string, any>
+import type { JsonObject } from '../../../types/json.js'
 
 export async function getCloudtentaclesKnapsack(payload: JsonObject = {}) {
   const token = String(payload.token || '').trim()
diff --git a/apps/backend/src/services/platforms/cloudtentacles/record-service.ts b/apps/backend/src/services/platforms/cloudtentacles/record-service.ts
index e0b56429..ccc6f3fe 100644
--- a/apps/backend/src/services/platforms/cloudtentacles/record-service.ts
+++ b/apps/backend/src/services/platforms/cloudtentacles/record-service.ts
@@ -2,8 +2,7 @@ import { createHttpError } from '../../../utils/http.js'
 import { logInfo } from '../../../utils/logger.js'
 import { cloudtentaclesRequest } from './http-client.js'
 import { resolveCloudtentaclesConfig } from './helpers.js'
-
-type JsonObject = Record<string, any>
+import type { JsonObject } from '../../../types/json.js'
 
 export type CloudtentaclesDeliveryRecordQuery = JsonObject & {
   baseUrl?: string
diff --git a/apps/backend/src/services/platforms/cloudtentacles/session-service.ts b/apps/backend/src/services/platforms/cloudtentacles/session-service.ts
index 32742700..5eb76807 100644
--- a/apps/backend/src/services/platforms/cloudtentacles/session-service.ts
+++ b/apps/backend/src/services/platforms/cloudtentacles/session-service.ts
@@ -3,8 +3,7 @@ import { logInfo } from '../../../utils/logger.js'
 import { encryptCloudtentaclesPayload, md5CloudtentaclesPassword } from './crypto-service.js'
 import { cloudtentaclesRequest } from './http-client.js'
 import { resolveCloudtentaclesConfig } from './helpers.js'
-
-type JsonObject = Record<string, any>
+import type { JsonObject } from '../../../types/json.js'
 
 export async function sendCloudtentaclesSmsCode(payload: JsonObject = {}) {
   const username = String(payload.username || '').trim()
diff --git a/apps/backend/src/services/platforms/cloudtentacles/session-state-service.ts b/apps/backend/src/services/platforms/cloudtentacles/session-state-service.ts
index 496b30aa..1b724218 100644
--- a/apps/backend/src/services/platforms/cloudtentacles/session-state-service.ts
+++ b/apps/backend/src/services/platforms/cloudtentacles/session-state-service.ts
@@ -1,4 +1,5 @@
 import path from 'node:path'
+import type { JsonObject } from '../../../types/json.js'
 
 import { APP_CONFIG_KEYS } from '../../../config/app-config-keys.js'
 import { PROJECT_ROOT } from '../../../config/runtime.js'
@@ -16,7 +17,6 @@ import {
 
 const CLOUDTENTACLES_SESSION_FILE_PATH = path.join(PROJECT_ROOT, 'data', 'cloudtentacles-session.json')
 
-type JsonObject = Record<string, any>
 type CloudtentaclesSessionState = ReturnType<typeof createDefaultCloudtentaclesSessionState>
 type CloudtentaclesSessionStatesFile = {
   sessions: Record<string, CloudtentaclesSessionState>
diff --git a/apps/backend/src/services/platforms/cloudtentacles/source-config-service.ts b/apps/backend/src/services/platforms/cloudtentacles/source-config-service.ts
index f2ee4f3b..4fe79f50 100644
--- a/apps/backend/src/services/platforms/cloudtentacles/source-config-service.ts
+++ b/apps/backend/src/services/platforms/cloudtentacles/source-config-service.ts
@@ -1,4 +1,5 @@
 import path from 'node:path'
+import type { JsonObject } from '../../../types/json.js'
 
 import { APP_CONFIG_KEYS } from '../../../config/app-config-keys.js'
 import { PROJECT_ROOT } from '../../../config/runtime.js'
@@ -14,8 +15,6 @@ import {
 
 const CLOUDTENTACLES_SOURCES_FILE_PATH = path.join(PROJECT_ROOT, 'data', 'cloudtentacles-sources.json')
 
-type JsonObject = Record<string, any>
-
 export function getCloudtentaclesSourcesFilePath() {
   return CLOUDTENTACLES_SOURCES_FILE_PATH
 }
diff --git a/apps/backend/src/services/platforms/cloudtentacles/virtual-number-service.ts b/apps/backend/src/services/platforms/cloudtentacles/virtual-number-service.ts
index d6f445be..c44e6d8a 100644
--- a/apps/backend/src/services/platforms/cloudtentacles/virtual-number-service.ts
+++ b/apps/backend/src/services/platforms/cloudtentacles/virtual-number-service.ts
@@ -1,5 +1,6 @@
 import http from 'node:http'
 import https from 'node:https'
+import type { JsonObject } from '../../../types/json.js'
 
 import { createHttpError } from '../../../utils/http.js'
 import { cloudtentaclesRequest } from './http-client.js'
@@ -8,7 +9,6 @@ import { resolveCloudtentaclesConfig } from './helpers.js'
 const BIND_URL_PROBE_MAX_BODY_BYTES = 64 * 1024
 const AMS_SIGNATURE_EXPIRED_CODE = '99998'
 
-type JsonObject = Record<string, any>
 type HeaderAdapter = {
   get(name: unknown): string | null
 }
diff --git a/apps/backend/src/services/platforms/kuaishou-feifei/http-client.ts b/apps/backend/src/services/platforms/kuaishou-feifei/http-client.ts
index 9ba0741f..23fbcd29 100644
--- a/apps/backend/src/services/platforms/kuaishou-feifei/http-client.ts
+++ b/apps/backend/src/services/platforms/kuaishou-feifei/http-client.ts
@@ -1,11 +1,10 @@
 import crypto from 'node:crypto'
+import { asJsonObject, type  JsonObject  } from '../../../types/json.js'
 
 import { createHttpError } from '../../../utils/http.js'
 import { createRequestId, logExternalHttpPacket } from '../../../utils/logger.js'
 import { assertKuaishouFeifeiConfig } from './config.js'
 
-type JsonObject = Record<string, any>
-
 export async function kuaishouFeifeiRequest(pathname: string, payload: JsonObject = {}) {
   const config = assertKuaishouFeifeiConfig()
   const body = JSON.stringify(payload)
@@ -189,7 +188,7 @@ export function isKuaishouFeifeiSuccessResponse(json: JsonObject) {
 function parseJsonObject(text: string): JsonObject {
   try {
     const parsed = JSON.parse(text || '{}')
-    return parsed && typeof parsed === 'object' && !Array.isArray(parsed) ? parsed : {}
+    return asJsonObject(parsed)
   } catch {
     return {}
   }
diff --git a/apps/backend/src/services/platforms/kuaishou-feifei/notify-service.ts b/apps/backend/src/services/platforms/kuaishou-feifei/notify-service.ts
index 5d4035e1..6af16b26 100644
--- a/apps/backend/src/services/platforms/kuaishou-feifei/notify-service.ts
+++ b/apps/backend/src/services/platforms/kuaishou-feifei/notify-service.ts
@@ -1,4 +1,5 @@
 import crypto from 'node:crypto'
+import type { JsonObject } from '../../../types/json.js'
 
 import { createTaskEvent } from '../../../repositories/task-event-repo.js'
 import { findKuaishouFeifeiTaskByOrder } from '../../../repositories/task-repo.js'
@@ -9,7 +10,6 @@ import { assertKuaishouFeifeiConfig } from './config.js'
 import { signKuaishouFeifeiPayload } from './http-client.js'
 import { mapKuaishouFeifeiOrder } from './order-service.js'
 
-type JsonObject = Record<string, any>
 type NotifyHeaders = Record<string, string | string[] | undefined>
 
 export async function handleKuaishouFeifeiNotify(input: {
diff --git a/apps/backend/src/services/platforms/kuaishou-feifei/order-service.ts b/apps/backend/src/services/platforms/kuaishou-feifei/order-service.ts
index 20561eff..afc93cf7 100644
--- a/apps/backend/src/services/platforms/kuaishou-feifei/order-service.ts
+++ b/apps/backend/src/services/platforms/kuaishou-feifei/order-service.ts
@@ -1,7 +1,6 @@
 import { getKuaishouFeifeiConfig } from './config.js'
 import { kuaishouFeifeiRequest } from './http-client.js'
-
-type JsonObject = Record<string, any>
+import type { JsonObject } from '../../../types/json.js'
 
 export type KuaishouFeifeiProductListResult = ReturnType<typeof mapKuaishouFeifeiProductList>
 
diff --git a/apps/backend/src/services/platforms/kuaishou-feifei/source-config-service.ts b/apps/backend/src/services/platforms/kuaishou-feifei/source-config-service.ts
index 63f05e73..35b9231b 100644
--- a/apps/backend/src/services/platforms/kuaishou-feifei/source-config-service.ts
+++ b/apps/backend/src/services/platforms/kuaishou-feifei/source-config-service.ts
@@ -1,4 +1,5 @@
 import path from 'node:path'
+import type { JsonObject } from '../../../types/json.js'
 
 import { APP_CONFIG_KEYS } from '../../../config/app-config-keys.js'
 import { PROJECT_ROOT } from '../../../config/runtime.js'
@@ -16,8 +17,6 @@ const KUAISHOU_FEIFEI_CONFIG_FILE_PATH = path.join(
   'kuaishou-feifei-config.json',
 )
 
-type JsonObject = Record<string, any>
-
 export type KuaishouFeifeiSourceConfig = {
   enabled: boolean
   baseUrl: string
diff --git a/apps/backend/src/services/platforms/kuaishou-industry/consume-code-service.ts b/apps/backend/src/services/platforms/kuaishou-industry/consume-code-service.ts
index bf3b0c9b..b7c4c527 100644
--- a/apps/backend/src/services/platforms/kuaishou-industry/consume-code-service.ts
+++ b/apps/backend/src/services/platforms/kuaishou-industry/consume-code-service.ts
@@ -3,6 +3,7 @@ import { findKuaishouIndustryVoucherByCode } from '../../../repositories/kuaisho
 import { normalizeTimestampIso } from '../../../utils/time.js'
 import { logWarn } from '../../../utils/logger.js'
 import { TASK_STATUS } from '../../../domain/task-status.js'
+import type { JsonObject } from '../../../types/json.js'
 import {
   getKuaishouIndustryConfig,
   assertMatchingAppKey,
@@ -17,8 +18,6 @@ import { consumeCallback } from './consume-callback-service.js'
 import { consumeKuaishouIndustryVoucher } from './voucher-service.js'
 import { attachKuaishouIndustryVoucherToTask } from './voucher-binding-service.js'
 
-type JsonObject = Record<string, any>
-
 export async function handleConsumeCode(rawBody: JsonObject = {}) {
   const config = getKuaishouIndustryConfig()
 
diff --git a/apps/backend/src/services/platforms/kuaishou-industry/crypto.ts b/apps/backend/src/services/platforms/kuaishou-industry/crypto.ts
index 0b23ee10..4ca8e603 100644
--- a/apps/backend/src/services/platforms/kuaishou-industry/crypto.ts
+++ b/apps/backend/src/services/platforms/kuaishou-industry/crypto.ts
@@ -1,11 +1,10 @@
 import crypto from 'node:crypto'
+import type { JsonObject } from '../../../types/json.js'
 
 import { createHttpError } from '../../../utils/http.js'
 import { logWarn } from '../../../utils/logger.js'
 import { assertKuaishouIndustryConfig } from './config.js'
 
-type JsonObject = Record<string, any>
-
 export type SignMethod = 'MD5' | 'HMAC_SHA256'
 
 export function buildKuaishouIndustrySignSource(params: JsonObject = {}, { signSecret } = assertKuaishouIndustryConfig()) {
diff --git a/apps/backend/src/services/platforms/kuaishou-industry/destroy-code-service.ts b/apps/backend/src/services/platforms/kuaishou-industry/destroy-code-service.ts
index ffe8719e..20ea7937 100644
--- a/apps/backend/src/services/platforms/kuaishou-industry/destroy-code-service.ts
+++ b/apps/backend/src/services/platforms/kuaishou-industry/destroy-code-service.ts
@@ -1,4 +1,5 @@
 import { updateTask } from '../../../repositories/task-repo.js'
+import type { JsonObject } from '../../../types/json.js'
 import {
   listKuaishouIndustryVouchersByOid,
   updateKuaishouIndustryVoucherByCode,
@@ -18,8 +19,6 @@ import {
 import { destroyCallback } from './destroy-callback-service.js'
 import { attachKuaishouIndustryVoucherToTask } from './voucher-binding-service.js'
 
-type JsonObject = Record<string, any>
-
 export async function handleDestroyCode(rawBody: JsonObject = {}) {
   const config = getKuaishouIndustryConfig()
 
diff --git a/apps/backend/src/services/platforms/kuaishou-industry/openapi-client.ts b/apps/backend/src/services/platforms/kuaishou-industry/openapi-client.ts
index e360c800..f22281da 100644
--- a/apps/backend/src/services/platforms/kuaishou-industry/openapi-client.ts
+++ b/apps/backend/src/services/platforms/kuaishou-industry/openapi-client.ts
@@ -2,8 +2,8 @@ import { getKuaishouIndustryConfig } from './config.js'
 import { signKuaishouIndustryPayload, type SignMethod } from './crypto.js'
 import { ensureKuaishouIndustryAccessToken } from './token-service.js'
 import { logIntegration } from '../../../utils/logger.js'
-
-export type JsonObject = Record<string, any>
+import type { JsonObject } from '../../../types/json.js'
+export type { JsonObject }
 
 type KuaishouIndustryOpenApiCallInput = {
   apiMethod: string
diff --git a/apps/backend/src/services/platforms/kuaishou-industry/openapi-values.ts b/apps/backend/src/services/platforms/kuaishou-industry/openapi-values.ts
index 15b25a29..69913708 100644
--- a/apps/backend/src/services/platforms/kuaishou-industry/openapi-values.ts
+++ b/apps/backend/src/services/platforms/kuaishou-industry/openapi-values.ts
@@ -1,5 +1,5 @@
-export type JsonObject = Record<string, any>
-
+import type { JsonObject } from '../../../types/json.js'
+export type { JsonObject }
 export function pickDefinedBizParams(input: JsonObject): JsonObject {
   const output: JsonObject = {}
 
diff --git a/apps/backend/src/services/platforms/kuaishou-industry/payload.ts b/apps/backend/src/services/platforms/kuaishou-industry/payload.ts
index 05a9cb87..5ec90d2c 100644
--- a/apps/backend/src/services/platforms/kuaishou-industry/payload.ts
+++ b/apps/backend/src/services/platforms/kuaishou-industry/payload.ts
@@ -1,7 +1,6 @@
 import { createHttpError } from '../../../utils/http.js'
 import { assertKuaishouIndustryConfig } from './config.js'
-
-type JsonObject = Record<string, any>
+import { asJsonObject, type  JsonObject  } from '../../../types/json.js'
 
 export function normalizeIndustryString(value: unknown) {
   return String(value || '').trim()
@@ -239,7 +238,7 @@ function parseParamField(raw: JsonObject) {
 
   try {
     const parsed = JSON.parse(normalizeIndustryString(raw.param || '{}'))
-    return parsed && typeof parsed === 'object' && !Array.isArray(parsed) ? parsed : {}
+    return asJsonObject(parsed)
   } catch {
     return {}
   }
diff --git a/apps/backend/src/services/platforms/kuaishou-industry/query-code-service.ts b/apps/backend/src/services/platforms/kuaishou-industry/query-code-service.ts
index f920c2e2..5c1e6227 100644
--- a/apps/backend/src/services/platforms/kuaishou-industry/query-code-service.ts
+++ b/apps/backend/src/services/platforms/kuaishou-industry/query-code-service.ts
@@ -1,3 +1,4 @@
+import type { JsonObject } from '../../../types/json.js'
 import {
   findKuaishouIndustryVoucherByCode,
   listKuaishouIndustryVouchersByOid,
@@ -18,8 +19,6 @@ import {
   isKuaishouIndustryVoucherSendCallbackSuccess,
 } from './voucher-service.js'
 
-type JsonObject = Record<string, any>
-
 export async function handleQueryCode(rawBody: JsonObject = {}) {
   const config = getKuaishouIndustryConfig()
 
diff --git a/apps/backend/src/services/platforms/kuaishou-industry/response.ts b/apps/backend/src/services/platforms/kuaishou-industry/response.ts
index a4be8e94..454b262c 100644
--- a/apps/backend/src/services/platforms/kuaishou-industry/response.ts
+++ b/apps/backend/src/services/platforms/kuaishou-industry/response.ts
@@ -1,5 +1,4 @@
-type JsonObject = Record<string, any>
-
+import type { JsonObject } from '../../../types/json.js'
 export function buildIndustrySuccessResponse(data: unknown = null) {
   return {
     result: 1,
diff --git a/apps/backend/src/services/platforms/kuaishou-industry/send-code-service.ts b/apps/backend/src/services/platforms/kuaishou-industry/send-code-service.ts
index 33aaa059..f2292c6a 100644
--- a/apps/backend/src/services/platforms/kuaishou-industry/send-code-service.ts
+++ b/apps/backend/src/services/platforms/kuaishou-industry/send-code-service.ts
@@ -1,5 +1,6 @@
 import { findLatestOrderByPlatformOrderId } from '../../../repositories/order-repo.js'
 import { listTasksByOrderId } from '../../../repositories/task-repo.js'
+import { asJsonObject, type  JsonObject  } from '../../../types/json.js'
 import {
   findKuaishouIndustryVoucherByCode,
   listKuaishouIndustryVouchersByOid,
@@ -33,8 +34,6 @@ import { bindKuaishouIndustryVouchersToOrderTasks } from './voucher-binding-serv
 import { parseAmountToFen } from '../../../utils/money.js'
 import type { KuaishouIndustryVoucherRow, OrderRow } from '../../../types/repository/rows.js'
 
-type JsonObject = Record<string, any>
-
 type SendCodeCallbackParams = {
   oid: string
   sendType: string
@@ -677,7 +676,7 @@ function parseJsonObject(value: unknown): JsonObject {
 
   try {
     const parsed = JSON.parse(String(value || '{}'))
-    return parsed && typeof parsed === 'object' && !Array.isArray(parsed) ? parsed : {}
+    return asJsonObject(parsed)
   } catch {
     return {}
   }
diff --git a/apps/backend/src/services/platforms/kuaishou-industry/source-config-service.ts b/apps/backend/src/services/platforms/kuaishou-industry/source-config-service.ts
index 863297e3..195c78c3 100644
--- a/apps/backend/src/services/platforms/kuaishou-industry/source-config-service.ts
+++ b/apps/backend/src/services/platforms/kuaishou-industry/source-config-service.ts
@@ -1,4 +1,5 @@
 import path from 'node:path'
+import type { JsonObject } from '../../../types/json.js'
 
 import { APP_CONFIG_KEYS } from '../../../config/app-config-keys.js'
 import { PROJECT_ROOT, runtimeConfig } from '../../../config/runtime.js'
@@ -14,8 +15,6 @@ const LEGACY_DEFAULT_REDIRECT_URI = 'https://ks.khhao.com/oauth-callback'
 const DEFAULT_REDIRECT_URI = 'https://ks.khhao.com/admin/platform-shops?tab=kuaishouIndustry'
 const DEFAULT_SCOPES = 'merchant_item'
 
-type JsonObject = Record<string, any>
-
 export type KuaishouIndustryShopConfig = {
   enabled: boolean
   sellerId: string
diff --git a/apps/backend/src/services/platforms/kuaishou-industry/token-service.ts b/apps/backend/src/services/platforms/kuaishou-industry/token-service.ts
index 6a6e7cbb..117458bd 100644
--- a/apps/backend/src/services/platforms/kuaishou-industry/token-service.ts
+++ b/apps/backend/src/services/platforms/kuaishou-industry/token-service.ts
@@ -1,5 +1,6 @@
 import { createHttpError } from '../../../utils/http.js'
 import { logInfo, logWarn } from '../../../utils/logger.js'
+import type { JsonObject } from '../../../types/json.js'
 import {
   findKuaishouIndustryShopConfig,
   getKuaishouIndustrySourceConfig,
@@ -10,8 +11,6 @@ import {
   type KuaishouIndustrySourceConfig,
 } from './source-config-service.js'
 
-type JsonObject = Record<string, any>
-
 const ACCESS_TOKEN_REFRESH_MARGIN_MS = 30 * 60 * 1000
 const DEFAULT_ACCESS_TOKEN_TTL_MS = 47 * 60 * 60 * 1000
 const DEFAULT_REFRESH_TOKEN_TTL_MS = 179 * 24 * 60 * 60 * 1000
diff --git a/apps/backend/src/services/platforms/kuaishou-industry/voucher-binding-service.ts b/apps/backend/src/services/platforms/kuaishou-industry/voucher-binding-service.ts
index 52b12a6f..77284c39 100644
--- a/apps/backend/src/services/platforms/kuaishou-industry/voucher-binding-service.ts
+++ b/apps/backend/src/services/platforms/kuaishou-industry/voucher-binding-service.ts
@@ -1,4 +1,5 @@
 import { updateTask } from '../../../repositories/task-repo.js'
+import type { JsonObject } from '../../../types/json.js'
 import {
   listKuaishouIndustryVouchersByOid,
   updateKuaishouIndustryVoucherByCode,
@@ -17,8 +18,6 @@ import type {
   TaskRow,
 } from '../../../types/repository/rows.js'
 
-type JsonObject = Record<string, any>
-
 export async function bindKuaishouIndustryVouchersToOrderTasks(
   order: OrderRow | null | undefined,
   tasks: TaskRow[] = [],
diff --git a/apps/backend/src/services/platforms/kuaishou-industry/voucher-service.ts b/apps/backend/src/services/platforms/kuaishou-industry/voucher-service.ts
index 7f54bc3b..56aecc77 100644
--- a/apps/backend/src/services/platforms/kuaishou-industry/voucher-service.ts
+++ b/apps/backend/src/services/platforms/kuaishou-industry/voucher-service.ts
@@ -1,4 +1,5 @@
 import { createTaskEvent } from '../../../repositories/task-event-repo.js'
+import { asJsonObject, type  JsonObject  } from '../../../types/json.js'
 import {
   findKuaishouIndustryVoucherByCode,
   listKuaishouIndustryVouchersByTaskId,
@@ -9,8 +10,6 @@ import { buildIndustryEticketItem } from './response.js'
 import { consumeCallback } from './consume-callback-service.js'
 import type { KuaishouIndustryVoucherRow, TaskRow } from '../../../types/repository/rows.js'
 
-type JsonObject = Record<string, any>
-
 export const KUAISHOU_INDUSTRY_DEFAULT_VALID_DAYS = 3
 export const KUAISHOU_INDUSTRY_SEND_CALLBACK_STATUS = {
   PENDING: 'pending',
@@ -358,7 +357,7 @@ function parseJsonObject(value: unknown): JsonObject {
 
   try {
     const parsed = JSON.parse(String(value || '{}'))
-    return parsed && typeof parsed === 'object' && !Array.isArray(parsed) ? parsed : {}
+    return asJsonObject(parsed)
   } catch {
     return {}
   }
diff --git a/apps/backend/src/services/platforms/ninetyone/order-service.ts b/apps/backend/src/services/platforms/ninetyone/order-service.ts
index d3f4c735..713cc199 100644
--- a/apps/backend/src/services/platforms/ninetyone/order-service.ts
+++ b/apps/backend/src/services/platforms/ninetyone/order-service.ts
@@ -4,6 +4,7 @@ import { listOrderItemsByOrderId, replaceOrderItems } from '../../../repositorie
 import { listTasksByOrderId } from '../../../repositories/task-repo.js'
 import { upsertOrderFromSource } from '../../order/order-service.js'
 import { bindKuaishouIndustryVouchersToOrderTasks } from '../kuaishou-industry/voucher-binding-service.js'
+import { asJsonObject, type  JsonObject  } from '../../../types/json.js'
 import {
   OPEN_91_PLATFORM,
   OPEN_91_PROVIDER,
@@ -18,8 +19,6 @@ import type { OrderItemRow, OrderRow } from '../../../types/repository/rows.js'
 export const OPEN_91_PENDING_CONFIG_STATUS = 'pending_config'
 export const OPEN_91_MANUAL_FAILED_STATUS = 'manual_failed'
 
-type JsonObject = Record<string, any>
-
 export function buildOpen91SourceEvent(payload: JsonObject = {}, config: JsonObject = {}) {
   const normalized = normalizeOpen91CreatePayload(payload)
   const productInfo = parseOpen91ProductNo(normalized.productNo)
@@ -397,7 +396,7 @@ function parseJsonObject(value: unknown): JsonObject {
 
   try {
     const parsed = JSON.parse(String(value || '{}'))
-    return parsed && typeof parsed === 'object' && !Array.isArray(parsed) ? parsed : {}
+    return asJsonObject(parsed)
   } catch {
     return {}
   }
diff --git a/apps/backend/src/services/scheduler/cloudtentacles-health-job.ts b/apps/backend/src/services/scheduler/cloudtentacles-health-job.ts
index 05b9b9f0..2d79311d 100644
--- a/apps/backend/src/services/scheduler/cloudtentacles-health-job.ts
+++ b/apps/backend/src/services/scheduler/cloudtentacles-health-job.ts
@@ -1,4 +1,5 @@
 import { getCloudtentaclesAsset } from '../platforms/cloudtentacles/catalog-service.js'
+import type { JsonObject } from '../../types/json.js'
 import {
   normalizeCloudtentaclesDeviceId,
   normalizeCloudtentaclesDeviceType,
@@ -13,7 +14,6 @@ import {
   notifyCloudtentaclesAuthExpired,
 } from '../notification/domain-notifications.js'
 
-type JsonObject = Record<string, any>
 type CloudtentaclesHealthAccountResult = {
   sourceKey: string
   label: string
diff --git a/apps/backend/src/services/scheduler/config-service.ts b/apps/backend/src/services/scheduler/config-service.ts
index 47daea99..80149a43 100644
--- a/apps/backend/src/services/scheduler/config-service.ts
+++ b/apps/backend/src/services/scheduler/config-service.ts
@@ -1,4 +1,5 @@
 import path from 'node:path'
+import type { JsonObject } from '../../types/json.js'
 
 import { APP_CONFIG_KEYS } from '../../config/app-config-keys.js'
 import { PROJECT_ROOT } from '../../config/runtime.js'
@@ -10,8 +11,6 @@ import {
 const SCHEDULED_JOBS_FILE_PATH = path.join(PROJECT_ROOT, 'data', 'scheduled-jobs.json')
 const CLOUDTENTACLES_HEALTH_JOB_ID = 'cloudtentacles-health'
 
-type JsonObject = Record<string, any>
-
 export function getScheduledJobsFilePath() {
   return SCHEDULED_JOBS_FILE_PATH
 }
diff --git a/apps/backend/src/services/scheduler/scheduler-service.ts b/apps/backend/src/services/scheduler/scheduler-service.ts
index bac8939b..11491750 100644
--- a/apps/backend/src/services/scheduler/scheduler-service.ts
+++ b/apps/backend/src/services/scheduler/scheduler-service.ts
@@ -1,13 +1,12 @@
 import { logError, logInfo, logWarn } from '../../utils/logger.js'
 import { createHttpError } from '../../utils/http.js'
+import type { JsonObject } from '../../types/json.js'
 import {
   getCloudtentaclesHealthJob,
   getScheduledJobsConfig,
 } from './config-service.js'
 import { runCloudtentaclesHealthJob } from './cloudtentacles-health-job.js'
 
-type JsonObject = Record<string, any>
-
 const timers = new Map<string, NodeJS.Timeout>()
 const jobStates = new Map<string, JsonObject>()
 
diff --git a/apps/backend/src/types/admin/task-detail.ts b/apps/backend/src/types/admin/task-detail.ts
new file mode 100644
index 00000000..ebea3a6b
--- /dev/null
+++ b/apps/backend/src/types/admin/task-detail.ts
@@ -0,0 +1,34 @@
+import type { JsonObject } from '../json.js'
+
+/**
+ * 后台任务详情 API 返回形状（与前端 AdminTaskDetail 对齐的后端契约）。
+ * 深层履约字段仍用 JsonObject，避免一次改完所有 mapper。
+ */
+export type AdminClaimIdentitySummary = {
+  expectedUid: string
+  submittedAt: string | null
+  source: string
+  ready: boolean
+  boundUid: string
+  boundRoleName: string
+  uidMatched: boolean | null
+  compatibilityMode: 'uid' | 'legacy_no_uid'
+  note: string
+}
+
+export type AdminTaskDetailView = {
+  task: JsonObject
+  order: JsonObject | null
+  orderItem: JsonObject | null
+  claimToken: JsonObject | null
+  artifacts: JsonObject
+  screenshotUrl: string
+  review: JsonObject
+  redeemResolution: JsonObject | null
+  claimIdentity: AdminClaimIdentitySummary
+  kuaishouCloudFulfillment: JsonObject | null
+  kuaishouIndustryVoucher: JsonObject | null
+  manualDispatch: JsonObject | null
+  events: JsonObject[]
+  operations: JsonObject
+}
diff --git a/apps/backend/src/types/json.ts b/apps/backend/src/types/json.ts
index f3e9a9e6..3b37a5d2 100644
--- a/apps/backend/src/types/json.ts
+++ b/apps/backend/src/types/json.ts
@@ -1 +1,41 @@
-export type JsonRecord = Record<string, any>
+/**
+ * 项目统一的 JSON 结构类型（中心定义，避免各处复制 Record<string, any>）。
+ *
+ * 渐进策略：
+ * - JsonObject：当前仍用 any 值以兼容深层 context 访问（.a.b.c）
+ * - 新域模型请用 TaskContext / 明确 interface，少用 JsonObject
+ * - 后续可把热点路径迁到 StrictJsonObject（unknown 值）
+ */
+
+/** 严格 JSON（推荐新代码） */
+export type JsonPrimitive = string | number | boolean | null
+export type StrictJson =
+  | JsonPrimitive
+  | StrictJson[]
+  | { readonly [key: string]: StrictJson }
+export type StrictJsonObject = { [key: string]: StrictJson }
+
+/**
+ * 宽松 JSON 对象袋（兼容既有履约 context / 平台响应）。
+ * 值使用 any 仅为兼容深层属性链；新增代码优先 TaskContext 或 StrictJsonObject。
+ */
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+export type JsonObject = Record<string, any>
+
+/** @deprecated 使用 JsonObject */
+export type JsonRecord = JsonObject
+
+export function isPlainObject(value: unknown): value is JsonObject {
+  return Object.prototype.toString.call(value) === '[object Object]'
+}
+
+export function asJsonObject(value: unknown): JsonObject {
+  return isPlainObject(value) ? value : {}
+}
+
+export function getJsonProp(value: unknown, key: string): unknown {
+  if (!isPlainObject(value)) {
+    return undefined
+  }
+  return value[key]
+}
diff --git a/apps/backend/src/types/task-context.ts b/apps/backend/src/types/task-context.ts
new file mode 100644
index 00000000..ad0ab223
--- /dev/null
+++ b/apps/backend/src/types/task-context.ts
@@ -0,0 +1,26 @@
+import type { JsonObject } from './json.js'
+
+/**
+ * 履约任务 context_json 的已知字段。
+ * 未建模扩展仍可通过索引访问（JsonObject）。
+ */
+export type ClaimIdentityContext = {
+  expectedUid?: string
+  submittedAt?: string | null
+  source?: string
+  uid?: string
+}
+
+export type TaskContext = JsonObject & {
+  claimIdentity?: ClaimIdentityContext | JsonObject
+  kuaishouCloudFulfillment?: JsonObject
+  kuaishouFeifei?: JsonObject
+  kuaishouIndustryVoucher?: JsonObject
+  redeemResolution?: JsonObject
+  manualDispatch?: JsonObject
+  mock?: JsonObject
+  profileKey?: string
+  profileName?: string
+  skuCode?: string
+  skuName?: string
+}
diff --git a/apps/backend/src/utils/logger.ts b/apps/backend/src/utils/logger.ts
index b0ceb911..86f1c55d 100644
--- a/apps/backend/src/utils/logger.ts
+++ b/apps/backend/src/utils/logger.ts
@@ -6,6 +6,7 @@ import util from 'node:util'
 import { PROJECT_ROOT, runtimeConfig } from '../config/runtime.js'
 import type { HttpErrorLike } from './http.js'
 import { maskSecret } from './masking.js'
+import { asJsonObject } from '../types/json.js'
 
 type LogLevel = 'debug' | 'info' | 'warn' | 'error'
 type LogChannel = 'app' | 'integration'
@@ -362,7 +363,7 @@ function isSensitiveLogKey(key: unknown): boolean {
 function normalizeExternalHttpPacketDetail(
   detail: ExternalHttpPacketDetail,
 ): ExternalHttpPacketDetail {
-  const source = detail && typeof detail === 'object' && !Array.isArray(detail) ? detail : {}
+  const source = asJsonObject(detail)
   const normalized: ExternalHttpPacketDetail = {}
 
   for (const [key, value] of Object.entries(source)) {
diff --git a/apps/backend/src/utils/task-json.ts b/apps/backend/src/utils/task-json.ts
index 8d1a45fe..d10e4bf9 100644
--- a/apps/backend/src/utils/task-json.ts
+++ b/apps/backend/src/utils/task-json.ts
@@ -1,26 +1,34 @@
-export type JsonRecord = Record<string, any>
+import type { JsonObject, JsonRecord } from '../types/json.js'
+import { asJsonObject, isPlainObject } from '../types/json.js'
+import type { TaskContext } from '../types/task-context.js'
 
-export function parseJsonObject(value: unknown): JsonRecord {
+export type { JsonRecord, JsonObject }
+
+export function parseJsonObject(value: unknown): JsonObject {
   if (!value) {
     return {}
   }
 
-  if (typeof value === 'object' && !Array.isArray(value)) {
-    return value as JsonRecord
+  if (isPlainObject(value)) {
+    return value
   }
 
   try {
-    const parsed = JSON.parse(String(value || '{}'))
-    return parsed && typeof parsed === 'object' && !Array.isArray(parsed) ? parsed : {}
+    const parsed = JSON.parse(String(value || '{}')) as unknown
+    return asJsonObject(parsed)
   } catch {
     return {}
   }
 }
 
-export function parseTaskContext(task: { context_json?: unknown } | null | undefined): JsonRecord {
-  return parseJsonObject(task?.context_json)
+export function parseTaskContext(
+  task: { context_json?: unknown } | null | undefined,
+): TaskContext {
+  return parseJsonObject(task?.context_json) as TaskContext
 }
 
-export function parseTaskState(task: { state_json?: unknown } | null | undefined): JsonRecord {
+export function parseTaskState(
+  task: { state_json?: unknown } | null | undefined,
+): JsonObject {
   return parseJsonObject(task?.state_json)
 }
diff --git a/apps/backend/tsconfig.json b/apps/backend/tsconfig.json
index 4a2c1a75..1ba6f1fb 100644
--- a/apps/backend/tsconfig.json
+++ b/apps/backend/tsconfig.json
@@ -3,8 +3,8 @@
     "target": "ES2022",
     "module": "NodeNext",
     "moduleResolution": "NodeNext",
-    "allowJs": true,
-    "checkJs": true,
+    "allowJs": false,
+    "checkJs": false,
     "noEmit": true,
     "strict": true,
     "noUncheckedIndexedAccess": true,
@@ -14,13 +14,11 @@
     "lib": ["ES2022"]
   },
   "include": [
-    "src/**/*.js",
     "src/**/*.ts"
   ],
   "exclude": [
     "node_modules",
     "data",
-    "src/**/*.test.js",
     "src/**/*.test.ts"
   ]
 }
diff --git a/docs/履约配置/TypeScript类型收紧.md b/docs/履约配置/TypeScript类型收紧.md
new file mode 100644
index 00000000..a1bff67d
--- /dev/null
+++ b/docs/履约配置/TypeScript类型收紧.md
@@ -0,0 +1,26 @@
+# TypeScript 类型收紧
+
+## 已完成
+
+1. **源码仅 TS**：`allowJs: false`，不再 include `*.js`
+2. **统一 JSON 类型中心**：`apps/backend/src/types/json.ts`
+   - `JsonObject`：中心定义（当前值仍为 any 以兼容深层 context 访问）
+   - `StrictJson` / `StrictJsonObject`：新代码可用的 unknown 严格形态
+   - `asJsonObject` / `isPlainObject` 工具
+3. **去掉约 60 处本地** `type JsonObject = Record<string, any>`
+4. **TaskContext**：`types/task-context.ts`，`parseTaskContext` 返回 `TaskContext`
+5. **Admin 任务详情契约**：`types/admin/task-detail.ts`，`getAdminTaskDetail(): Promise<AdminTaskDetailView>`
+6. **测试 fixture**：`delivery-task-service.test.ts` 减少 `as any`
+
+## 未做完（后续）
+
+- 将 `JsonObject` 值从 `any` 迁到 `unknown`（需改大量 `.a.b` 访问）
+- 前后端共享类型包 / OpenAPI
+- 前端对齐 `noUncheckedIndexedAccess`
+- 全量测试 fixture 工厂化
+
+## 约定
+
+- **新域逻辑**优先写 interface（如 `ClaimIdentity`、`AdminClaimIdentitySummary`）
+- **平台原始响应**可暂用 `JsonObject`，但 normalize 出口要有明确类型
+- 禁止再新增本地 `type JsonObject = Record<string, any>`