fix: wire mail provider into standalone registration

main.py

@@ -15,6 +15,7 @@ if str(PROJECT_ROOT) not in sys.path:
     sys.path.insert(0, str(PROJECT_ROOT))
 
 from openai_pool_orchestrator import TOKENS_DIR, __version__
+from openai_pool_orchestrator.mail_providers import MultiMailRouter
 from openai_pool_orchestrator.register import _write_text_atomic, run as register_run
 
 try:
@@ -185,6 +186,7 @@ def handle_register(args: argparse.Namespace) -> dict[str, Any]:
     sleep_min = max(1, args.sleep_min)
     sleep_max = max(sleep_min, args.sleep_max)
     proxy = args.proxy if args.proxy is not None else str(cfg.get("proxy") or "").strip() or None
+    mail_router = MultiMailRouter(cfg)
 
     count = 0
     runs: List[dict[str, Any]] = []
@@ -192,8 +194,11 @@ def handle_register(args: argparse.Namespace) -> dict[str, Any]:
         count += 1
         print(f"\n[{time.strftime('%H:%M:%S')}] >>> 开始第 {count} 次注册流程 <<<")
         try:
+            provider_name, provider = mail_router.next_provider()
+            print(f"[*] 本次使用邮箱提供商: {provider_name}")
             token_json = register_run(
                 proxy,
+                mail_provider=provider,
                 proxy_pool_config={
                     "enabled": bool(cfg.get("proxy_pool_enabled", False)),
                     "api_url": cfg.get("proxy_pool_api_url", ""),
@@ -203,8 +208,13 @@ def handle_register(args: argparse.Namespace) -> dict[str, Any]:
                     "country": cfg.get("proxy_pool_country", "US"),
                 },
             )
+            mail_router.report_success(provider_name)
         except Exception as exc:
             token_json = None
+            try:
+                mail_router.report_failure(provider_name)
+            except Exception:
+                pass
             runs.append({"ok": False, "error": str(exc)})
             print(f"[Error] 发生未捕获异常: {exc}")