feat: 类型帖互动、积分经济与发帖体验

补齐问答采纳/重开、投票匿名与有票禁编、悬赏过期退回、抽奖回帖开奖，并接入积分账本与发帖附件可见性。

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

frontend/app/admin/page.tsx

@@ -17,7 +17,7 @@ import {
 } from "@/lib/api";
 import { authCookieHeader } from "@/lib/cookies";
 import { getMeCached } from "@/lib/serverData";
-import { canModerateAny, isSuperOrOwner } from "@/lib/roles";
+import { canModerateAny, isSuperOrOwner, isAdminOrAbove } from "@/lib/roles";
 import Avatar from "@/components/Avatar";
 import { formatRelative } from "@/lib/format";
 
@@ -127,6 +127,7 @@ export default async function AdminDashboardPage() {
   const me = await getMeCached(cookie || undefined);
   const canMod = canModerateAny(me.user);
   const canUsers = isSuperOrOwner(me.user?.role);
+  const canEconomy = isAdminOrAbove(me.user?.role);
 
   const [overview, pendingCounts] = await Promise.all([
     fetchOverview(cookie).catch(() => null),
@@ -163,6 +164,21 @@ export default async function AdminDashboardPage() {
 
       {canMod && pendingCounts && <PendingWorkPanel counts={pendingCounts} />}
 
+      {canEconomy && (
+        <Link
+          href="/admin/economy"
+          className="panel mb-4 px-4 sm:px-5 py-4 flex items-center justify-between gap-3 transition-colors hover:bg-[var(--panel-2)]"
+        >
+          <div>
+            <p className="font-bold text-[15px]" style={{ color: "var(--ink)" }}>
+              积分与类型帖看板
+            </p>
+            <p className="meta text-[12.5px] mt-0.5">余额合计、悬赏托管、类型分布与最近流水</p>
+          </div>
+          <ChevronRight size={18} style={{ color: "var(--ink-3)" }} />
+        </Link>
+      )}
+
       <div className="grid lg:grid-cols-2 gap-4 items-start">
         <div className="panel overflow-hidden">
           <PanelHead