施工(HEL-226): 实现登录门户与本机免密切换账号

用设备 Cookie 和授权表记住本机已验证账号，登录页按确认样图做成门户，不再把密码写进浏览器。

Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: multica-agent <github@multica.ai>

tools/build_api_registry.py

@@ -50,7 +50,13 @@ def _owner(path: str) -> str:
 
 
 def _role(method: str, path: str) -> str:
-    if path == "/api/health" or path in {"/api/auth/register", "/api/auth/login"}:
+    if path == "/api/health" or path in {
+        "/api/auth/register",
+        "/api/auth/login",
+        "/api/auth/accounts",
+        "/api/auth/switch",
+        "/api/auth/forget",
+    }:
         return "public"
     from api_access import required_role