fix(scheduling): 近7天 filter should be time-only, not exclude cancelled

Previously the toggle hid cancelled records, so users who clicked a
record timestamped within 7 days but later cancelled would see nothing.
Now 近7天 filters purely by createdAt; combine with status tabs to
narrow further.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/modules/scheduling/NotificationHistory.tsx

@@ -67,7 +67,7 @@ export default function NotificationHistory({ onClose, onChange, recentOnly = fa
   const visibleRecords = recent7d
     ? records.filter(r => {
         const t = Date.parse(r.createdAt);
-        return Number.isFinite(t) && Date.now() - t <= SEVEN_DAYS_MS && r.status !== 'cancelled';
+        return Number.isFinite(t) && Date.now() - t <= SEVEN_DAYS_MS;
       })
     : records;
 
@@ -161,7 +161,7 @@ export default function NotificationHistory({ onClose, onChange, recentOnly = fa
               className={`text-[11px] px-3 py-1 rounded-full font-medium cursor-pointer transition-colors ${
                 recent7d ? 'bg-emerald-600 text-white' : 'bg-slate-100 text-slate-500 hover:bg-slate-200'
               }`}
-              title="仅看最近 7 天（不含已取消）"
+              title="仅看最近 7 天"
             >
               近 7 天
             </button>