feat: 增加友链申请、独立页面、投票/悬赏/抽奖帖与侧栏签到，并统一开发数据目录

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

frontend/src/components/AsideCheckInStrip.tsx

@@ -0,0 +1,104 @@
+import { CalendarCheck, Check, Gift, Loader2 } from 'lucide-react';
+import { useNavigate } from 'react-router-dom';
+import { Skeleton } from '@/components/ui/skeleton';
+import { useCheckIn } from '../hooks/useCheckIn';
+import { useAuth } from '../hooks/useAuth';
+import { loginPath } from '../utils/authRedirect';
+
+/** 右侧栏首块底部：每日签到 */
+export default function AsideCheckInStrip() {
+  const nav = useNavigate();
+  const { user } = useAuth();
+  const { status, loading, busy, doCheckIn } = useCheckIn();
+
+  if (!user) {
+    return (
+      <div className="widget-checkin">
+        <div className="widget-checkin-panel widget-checkin-panel--guest">
+          <div className="widget-checkin-main">
+            <div className="widget-checkin-icon" aria-hidden>
+              <CalendarCheck size={18} strokeWidth={2.25} />
+            </div>
+            <div className="widget-checkin-info">
+              <span className="widget-checkin-title">每日签到</span>
+              <span className="widget-checkin-meta">登录后每日可得 5–15 积分</span>
+            </div>
+          </div>
+          <button
+            type="button"
+            className="widget-checkin-action"
+            onClick={() => nav(loginPath())}
+          >
+            <Gift size={15} aria-hidden />
+            登录签到
+          </button>
+        </div>
+      </div>
+    );
+  }
+
+  if (loading && !status) {
+    return (
+      <div className="widget-checkin" aria-busy="true" aria-label="签到加载中">
+        <Skeleton className="widget-checkin-skeleton" />
+      </div>
+    );
+  }
+
+  const checkedIn = !!status?.checked_in;
+  const streak = status?.streak ?? 0;
+  const todayPoints = status?.today_points ?? 5;
+
+  const meta = checkedIn
+    ? (streak > 0 ? `连续 ${streak} 天 · 今日已获得 ${todayPoints} 积分` : `今日已获得 ${todayPoints} 积分`)
+    : (streak > 0 ? `连续 ${streak} 天 · 今日可得 ${todayPoints} 积分` : `今日签到可得 ${todayPoints} 积分`);
+
+  return (
+    <div className="widget-checkin">
+      <div
+        className={`widget-checkin-panel${checkedIn ? ' widget-checkin-panel--done' : ''}`}
+      >
+        <div className="widget-checkin-main">
+          <div className="widget-checkin-icon" aria-hidden>
+            {checkedIn ? (
+              <Check size={18} strokeWidth={2.5} />
+            ) : (
+              <CalendarCheck size={18} strokeWidth={2.25} />
+            )}
+          </div>
+          <div className="widget-checkin-info">
+            <span className="widget-checkin-title">
+              {checkedIn ? '今日已签到' : '每日签到'}
+            </span>
+            <span className="widget-checkin-meta">{meta}</span>
+          </div>
+          {!checkedIn && (
+            <span className="widget-checkin-reward" aria-hidden>
+              {todayPoints}
+            </span>
+          )}
+        </div>
+        {!checkedIn && (
+          <button
+            type="button"
+            className="widget-checkin-action"
+            disabled={busy}
+            onClick={doCheckIn}
+          >
+            {busy ? (
+              <>
+                <Loader2 size={15} className="widget-checkin-action-spinner animate-spin" aria-hidden />
+                签到中…
+              </>
+            ) : (
+              <>
+                <Gift size={15} aria-hidden />
+                立即签到
+              </>
+            )}
+          </button>
+        )}
+      </div>
+    </div>
+  );
+}