feat(web): 账号即环境 UI 收敛——删 /browsers 页面，环境并入账号详情

- 删除 /browsers 列表/创建/详情页与菜单项，运行环境不再是独立资源
- 账号详情：GET /api/phase-a/accounts/:id 内联 environment 字段
  （网关/出口/绑定版本/运行实例/不可调度原因），固定资源卡直接展示
- 状态卡两态开关：暂停→「启动账号」（start=resume+启动环境），
  运行中→「暂停账号」（联动停环境）；出口重绑卡片内完成
  （POST /network-exits/:id/rebind 返回内联 environment，出口切换不再跳环境页）
- 删除 creator/settings 残留的转写服务字段（后端 settings 无此列）
- helpers.ts accountReadiness 改用 runtime_id/runtime_cleanup_pending
- network-exits 列表绑定账号列改由账号列表内联数据驱动
- 全量验证：go test ./...（PG）全绿、tsc --noEmit 通过、max build 通过、
  node --test 12/12 通过

web/src/services/api.ts

@@ -3,7 +3,6 @@
 import { AUTH_STORAGE_KEY, RequestError, jsonOptions, request, unauthorized } from '@/requestErrorConfig';
 
 export const resourcePaths = {
-  browsers: '/browsers',
   gateways: '/gateways',
   accounts: '/phase-a/accounts',
   'network-exits': '/network-exits',
@@ -56,7 +55,7 @@ export async function getList<T = any>({ resource, page, pageSize, filters = {}
   };
 }
 
-const GETONE_ALLOWED: Resource[] = ['accounts', 'network-exits', 'browsers', 'creator-accounts', 'creator-competitors', 'creator-competitor-share-jobs', 'creator-works', 'creator-comments', 'creator-rules'];
+const GETONE_ALLOWED: Resource[] = ['accounts', 'network-exits', 'creator-accounts', 'creator-competitors', 'creator-competitor-share-jobs', 'creator-works', 'creator-comments', 'creator-rules'];
 
 export async function getOne<T = any>(resource: Resource, id: string | number): Promise<T> {
   if (!GETONE_ALLOWED.includes(resource)) throw new Error(`${resource} 不支持 getOne`);
@@ -68,7 +67,6 @@ export async function create(resource: Resource, variables: unknown): Promise<an
 }
 
 export async function update(resource: Resource, id: string | number, variables: unknown): Promise<void> {
-  if (resource === 'browsers') throw new Error('browsers 不支持 update');
   await request(`${resourcePaths[resource]}/${encodeURIComponent(id)}`, jsonOptions('PUT', variables));
 }
 
@@ -79,17 +77,6 @@ export async function remove(resource: Resource, id: string | number): Promise<v
 
 // ===== 显式动词的领域动作（不伪装成 CRUD）=====
 
-export async function browserAction(alias: string, action: 'start' | 'stop' | 'recycle'): Promise<void> {
-  const targets: Record<string, [string, string]> = {
-    start: [`/browsers/${encodeURIComponent(alias)}/start`, 'POST'],
-    stop: [`/browsers/${encodeURIComponent(alias)}/stop`, 'POST'],
-    recycle: [`/browsers/${encodeURIComponent(alias)}`, 'DELETE'],
-  };
-  const target = targets[action];
-  if (!target) throw new Error(`未知运行环境操作: ${action}`);
-  await request(target[0], { method: target[1] });
-}
-
 export async function accountAction(id: string, action: 'pause' | 'resume'): Promise<void> {
   if (action !== 'pause' && action !== 'resume') throw new Error(`未知账号操作: ${action}`);
   await request(`/phase-a/accounts/${encodeURIComponent(id)}/${action}`, { method: 'POST' });