feat: 支持创建邮箱 API 的子域名后缀匹配开关 (#929)

* feat: 支持创建邮箱 API 的子域名后缀匹配开关

* fix: 修复 review 提到的开关三态与域名校验问题

* fix: 补充域名归一化与子域名匹配回归测试

* fix: 修复后台开关跟随 env 回退与 account_settings 半成功保存

* fix: 收口账号设置刷新提示与子域名状态重复读取

* fix: 拦截超长域名并透传账号设置刷新失败

e2e/fixtures/test-helpers.ts

@@ -2,6 +2,8 @@ import { APIRequestContext } from '@playwright/test';
 import WebSocket from 'ws';
 
 export const WORKER_URL = process.env.WORKER_URL!;
+export const WORKER_URL_SUBDOMAIN = process.env.WORKER_URL_SUBDOMAIN || '';
+export const WORKER_URL_ENV_OFF = process.env.WORKER_URL_ENV_OFF || '';
 export const FRONTEND_URL = process.env.FRONTEND_URL!;
 export const MAILPIT_API = process.env.MAILPIT_API!;
 export const TEST_DOMAIN = 'test.example.com';

e2e/fixtures/wrangler.toml.e2e.env-off

@@ -0,0 +1,34 @@
+name = "cloudflare_temp_email_env_off"
+main = "src/worker.ts"
+compatibility_date = "2025-04-01"
+compatibility_flags = [ "nodejs_compat" ]
+keep_vars = true
+
+[vars]
+PREFIX = "tmp"
+DEFAULT_DOMAINS = ["test.example.com"]
+DOMAINS = ["test.example.com"]
+ENABLE_CREATE_ADDRESS_SUBDOMAIN_MATCH = false
+JWT_SECRET = "e2e-test-secret-key-env-off"
+BLACK_LIST = ""
+ENABLE_USER_CREATE_EMAIL = true
+ENABLE_USER_DELETE_EMAIL = true
+ENABLE_AUTO_REPLY = true
+DEFAULT_SEND_BALANCE = 10
+ENABLE_ADDRESS_PASSWORD = true
+DISABLE_ADMIN_PASSWORD_CHECK = true
+ADMIN_PASSWORDS = '["e2e-admin-pass"]'
+ENABLE_WEBHOOK = true
+E2E_TEST_MODE = true
+SMTP_CONFIG = """
+{"test.example.com":{"host":"mailpit","port":1025,"secure":false}}
+"""
+
+[[kv_namespaces]]
+binding = "KV"
+id = "e2e-test-kv-env-off-00000000-0000-0000-0000-000000000000"
+
+[[d1_databases]]
+binding = "DB"
+database_name = "e2e-temp-email-env-off"
+database_id = "e2e-test-db-env-off-00000000-0000-0000-0000-000000000000"