fix(probe): add limit/offset params to /admin/address (cf_temp_email returns 400 Invalid limit without them)

fix: complete autoteam-1 parity migration

fix: absorb autoteam-1 auth and CPA quota parity

fix(round-12): wire up dead helpers + integration fixes (per audit reports)

feat(round-12 S4): register dual-path with mail provider fallback

feat(round-12 S2): mail provider fallback chain + addy.io + simplelogin

feat(round-4 mail): SPEC-1 Mail Provider 全量化 + 邮箱归属验证 UI + 文档同步

fix(mail): 双向协议错配嗅探 + setup_wizard 路由指纹探测 (issue #1)

fix(maillab): 修补 list_emails type=0 / list_accounts 翻页 / 删 phantom 字段 + 改教程

refactor(mail): 拆分 cloudmail.py 为 mail provider 抽象层 + 双后端实现