完善站点运营设置：分路由管理、登录可见评论、邮件模板内联与关闭注册 SSR。

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/components/CommentsPolicyProvider.tsx

@@ -11,42 +11,68 @@ import {
 import { useRouter } from "next/navigation";
 import { realtime, RT_SETTINGS_CHANGED, type RtSettingsData } from "@/lib/realtime";
 
-const AllowCommentsContext = createContext(true);
+type CommentsPolicy = {
+  open: boolean;
+  requireLogin: boolean;
+};
+
+const CommentsPolicyContext = createContext<CommentsPolicy>({
+  open: true,
+  requireLogin: false,
+});
 
 /** 前台是否开放评论（SSR 初值 + 后台开关热更新） */
 export function useAllowComments(): boolean {
-  return useContext(AllowCommentsContext);
+  return useContext(CommentsPolicyContext).open;
+}
+
+/** 评论是否仅登录可见 */
+export function useCommentsRequireLogin(): boolean {
+  return useContext(CommentsPolicyContext).requireLogin;
 }
 
 /**
- * 根布局注入：关闭评论后前台立即隐藏评论区/数量；开启则刷新以拉回评论。
+ * 根布局注入：关闭评论后前台立即隐藏评论区/数量；
+ * 「登录可见」切换时刷新以重拉/清空评论树。
  */
 export default function CommentsPolicyProvider({
   allowComments,
+  requireLogin = false,
   children,
 }: {
   allowComments: boolean;
+  requireLogin?: boolean;
   children: ReactNode;
 }) {
   const router = useRouter();
-  const [open, setOpen] = useState(allowComments);
-  const openRef = useRef(open);
-  openRef.current = open;
+  const [policy, setPolicy] = useState<CommentsPolicy>({
+    open: allowComments,
+    requireLogin,
+  });
+  const policyRef = useRef(policy);
+  policyRef.current = policy;
 
   useEffect(() => {
-    setOpen(allowComments);
-  }, [allowComments]);
+    setPolicy({ open: allowComments, requireLogin });
+  }, [allowComments, requireLogin]);
 
   useEffect(() => {
     return realtime.on<RtSettingsData>(RT_SETTINGS_CHANGED, (data) => {
-      if (typeof data?.allow_comments !== "boolean") return;
-      if (openRef.current === data.allow_comments) return;
-      setOpen(data.allow_comments);
+      if (!data) return;
+      const prev = policyRef.current;
+      const nextOpen =
+        typeof data.allow_comments === "boolean" ? data.allow_comments : prev.open;
+      const nextRequire =
+        typeof data.comments_require_login === "boolean"
+          ? data.comments_require_login
+          : prev.requireLogin;
+      if (nextOpen === prev.open && nextRequire === prev.requireLogin) return;
+      setPolicy({ open: nextOpen, requireLogin: nextRequire });
       router.refresh();
     });
   }, [router]);
 
   return (
-    <AllowCommentsContext.Provider value={open}>{children}</AllowCommentsContext.Provider>
+    <CommentsPolicyContext.Provider value={policy}>{children}</CommentsPolicyContext.Provider>
   );
 }