feat: 就地通过评审，并为已过审用户提供默认可关的免审发布

帖/评管理入口可直接通过；站点默认信任已有 published 内容的用户后续直发。

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

frontend/lib/api.ts

@@ -528,19 +528,25 @@ export async function fetchBoards(): Promise<{ boards: BoardWithCount[] }> {
   return res.json();
 }
 
-// 公开站点设置：accent 为站点主题色 hex（空串=内置默认）
+// 公开站点设置：accent 为站点主题色 hex（空串=内置默认）；
+// trust_reviewed_publish 为已过审用户后续免审（缺省/未配置视为 true）
 export interface PublicSettings {
   accent: string;
+  trust_reviewed_publish: boolean;
 }
 
 // SSR 读取公开站点设置（主题色注入用）；后端不可用时降级为默认色，不阻塞渲染
 export async function fetchPublicSettings(): Promise<PublicSettings> {
   try {
     const res = await fetch(`${API_BASE}/api/settings`, ssrInit());
-    if (!res.ok) return { accent: "" };
-    return (await res.json()) as PublicSettings;
+    if (!res.ok) return { accent: "", trust_reviewed_publish: true };
+    const data = (await res.json()) as Partial<PublicSettings>;
+    return {
+      accent: data.accent ?? "",
+      trust_reviewed_publish: data.trust_reviewed_publish !== false,
+    };
   } catch {
-    return { accent: "" };
+    return { accent: "", trust_reviewed_publish: true };
   }
 }
 
@@ -1417,19 +1423,31 @@ export async function apiGetSettings(): Promise<PublicSettings> {
   // no-store：主题同步必须读到管理员刚保存的最新配色，不走浏览器缓存
   const res = await fetchWithRefresh("/api/settings", { method: "GET", cache: "no-store" });
   if (!res.ok) throw new Error("获取站点设置失败");
-  return res.json();
+  const data = (await res.json()) as Partial<PublicSettings>;
+  return {
+    accent: data.accent ?? "",
+    trust_reviewed_publish: data.trust_reviewed_publish !== false,
+  };
 }
 
-// 更新站点主题色；accent 传空串恢复默认
-export async function apiUpdateSiteSettings(accent: string): Promise<PublicSettings> {
+export type UpdateSiteSettingsBody = {
+  accent?: string;
+  trust_reviewed_publish?: boolean;
+};
+
+// 更新站点设置（字段可选）；accent 传空串恢复默认主题色
+export async function apiUpdateSiteSettings(body: UpdateSiteSettingsBody): Promise<PublicSettings> {
   const res = await fetchWithRefresh("/api/admin/settings", {
     method: "PUT",
     headers: clientHeaders({ "Content-Type": "application/json" }),
-    body: JSON.stringify({ accent }),
+    body: JSON.stringify(body),
   });
   const data = await res.json().catch(() => ({}));
   if (!res.ok) throw new Error(data.error || "保存设置失败");
-  return { accent: data.accent ?? "" };
+  return {
+    accent: data.accent ?? "",
+    trust_reviewed_publish: data.trust_reviewed_publish !== false,
+  };
 }
 
 // ===== 板块（客户端，供角色授权弹窗勾选） =====