接入 ESLint 并清理未使用代码

- 前后端接入 ESLint 10 扁平配置（typescript-eslint 类型感知检查 + react-hooks/react-refresh），新增 lint / lint:check / lint:fix 脚本并纳入 check 链路
- 清理全部 no-unused-vars 与 no-useless-assignment 警告，修复 floating promises、正则转义等问题
- 删除确认无引用的死代码（markKuaishouCloudBindUrlRefreshFailed、未使用 helper 等）

apps/backend/src/services/fulfillment/affiliate-dash/index.ts

@@ -197,7 +197,7 @@ export async function syncAffiliateDashTaskStatus(
   let resultMessage = task.result_message
   let lastError = task.last_error
   const nextFlow = mergeAffiliateDashOrder(flow, order, { syncedAt: now })
-  let nextIndustryVoucher = taskContext.kuaishouIndustryVoucher
+  const nextIndustryVoucher = taskContext.kuaishouIndustryVoucher
 
   switch (order.orderStatus) {
     case 'paid':

apps/backend/src/services/fulfillment/kuaishou-cloud/account-selector.ts

@@ -96,7 +96,7 @@ export async function selectCloudtentaclesSourceForFulfillment(
     const ranked = []
     let lastCapacityError: unknown = null
     for (const [index, context] of contexts.entries()) {
-      let occupiedCount = 0
+      let occupiedCount
       try {
         // CT's VN list is the authoritative count; DB counters can lag after crashes/restarts.
         const listed = await listVirtualNumbers({

apps/backend/src/services/fulfillment/kuaishou-cloud/binding-resources.ts

@@ -78,7 +78,7 @@ export async function prepareKuaishouCloudBindResourceWithFallback(input: JsonOb
 
   for (const vnKey of candidates) {
     let vnId = 0
-    let vnPhone = ''
+    let vnPhone
     const cooldownKey = `${sourceKey}|${vnKey}`
 
     const cooldownUntil = appointQuotaCooldowns.get(cooldownKey) || 0

apps/backend/src/services/fulfillment/kuaishou-cloud/probe-bind-url.ts

@@ -1,11 +1,8 @@
-import { createTaskEvent } from '../../../repositories/task-event-repo.js'
 import { updateTask } from '../../../repositories/task-repo.js'
 import { probeCloudtentaclesBindUrl } from '../../platforms/cloudtentacles/virtual-number-service.js'
 import { resolveCloudtentaclesConfig } from '../../platforms/cloudtentacles/helpers.js'
-import { notifyKuaishouCloudBindUrlRefreshFailed } from '../../notification/domain-notifications.js'
 import { createHttpError } from '../../../utils/http.js'
 import { nowIso } from '../../../utils/time.js'
-import { TASK_STATUS } from '../../../domain/task-status.js'
 import {
   isKuaishouCloudBindUrlFresh,
   isKuaishouCloudBindingMutationFrozen,
@@ -14,8 +11,7 @@ import {
   normalizeKuaishouCloudRoleInfo,
   type JsonObject,
 } from './domain.js'
-import { resolvePersistedCloudtentaclesContextBySourceKeys } from './cloudtentacles-context.js'
-import { normalizeActor, parseTaskContext } from './task-context.js'
+import { parseTaskContext } from './task-context.js'
 import { buildRoleStateFromCurrentInfo } from './role-state.js'
 import { refreshKuaishouCloudTaskBindUrl } from './prepare-fulfillment.js'
 import type { TaskRow } from '../../../types/repository/rows.js'
@@ -118,70 +114,3 @@ export async function probeKuaishouCloudTaskBindUrl(task: TaskRow, options: Json
     probe,
   }
 }
-
-/**
- * @param {any} task
- * @param {{ taskContext?: any, flow?: any, now?: string, actor?: any, error?: unknown }} [input]
- */
-async function markKuaishouCloudBindUrlRefreshFailed(
-  task: TaskRow,
-  { taskContext, flow, now, actor, error }: JsonObject = {},
-) {
-  const errorMessage =
-    error instanceof Error ? error.message : String(error || '新绑定链接准备失败')
-  const nextContext = {
-    ...taskContext,
-    kuaishouCloudFulfillment: {
-      ...flow,
-      binding: {
-        ...flow.binding,
-        prepareStatus: 'pending',
-        vnId: 0,
-        vnPhone: '',
-        bindUrl: '',
-        bindPreparedAt: null,
-        bindExpiresAt: null,
-        bindProbeAt: now,
-        bindProbeStatus: 'refresh_failed',
-        bindProbeMessage: errorMessage,
-        roleName: '',
-        roleId: '',
-      },
-      role: {
-        status: 'pending',
-        name: '',
-        rid: '',
-        refreshedAt: now,
-        errorMessage: '绑定链接已过期，旧号码已退还，新链接准备失败，请稍后刷新或联系客服处理',
-        rawInfo: null,
-      },
-    },
-  }
-
-  const updatedTask = await updateTask(task.id, {
-    task_status: TASK_STATUS.PENDING_BINDING_PREPARE,
-    role_id: '',
-    role_name: '',
-    last_error: `绑定链接过期，旧号码已退还，新链接准备失败：${errorMessage}`,
-    context_json: JSON.stringify(nextContext),
-    updated_at: now,
-  })
-
-  await createTaskEvent(
-    task.id,
-    'kuaishou_cloud_bind_url_refresh_failed',
-    {
-      source: 'system_refresh_expired_bind_url',
-      errorMessage,
-      actor,
-    },
-    now,
-  )
-
-  await notifyKuaishouCloudBindUrlRefreshFailed({
-    task: updatedTask,
-    errorMessage,
-  })
-
-  return updatedTask
-}

apps/backend/src/services/fulfillment/kuaishou-cloud/rebind-role.ts

@@ -188,7 +188,6 @@ export async function rebindKuaishouCloudTaskRole(task: TaskRow, options: JsonOb
       now,
     )
   } catch (error) {
-    oldNumberBackStatus = 'failed'
     oldNumberBackError = error instanceof Error ? error.message : String(error || '退号失败')
     const wrapped = wrapCloudtentaclesOperationError(error, {
       action: 'vn_back',
@@ -451,7 +450,7 @@ async function rebindByRefreshingExistingVnBindUrl(input: {
     now,
   } = input
 
-  let bindUrl = ''
+  let bindUrl
   try {
     const bindUrlResult = await getCloudtentaclesBindUrl({
       ...cloudContext,

apps/backend/src/services/fulfillment/kuaishou-cloud/return-fulfillment.ts

@@ -84,7 +84,7 @@ export async function returnKuaishouCloudFulfillmentTask(task: TaskRow, options:
   }
 
   const ticketCode = String(flow.ticket.code || '').trim()
-  let consumeStatus = 'pending'
+  let consumeStatus
   let consumeErrorMessage = ''
   let consumedAt: string | null = null
   let nextTaskStatus: TaskStatus = TASK_STATUS.COMPLETED