refactor: 移除个人页面决策记录，统一由成就墙展示

决策记录已完整迁移至 /achievements 成就墙页面，
个人中心不再重复展示，减少冗余数据请求。

src/app/profile/page.tsx

@@ -20,13 +20,12 @@ import {
 } from "lucide-react";
 import Card from "@/components/Card";
 import Input from "@/components/Input";
-import ProfileHistoryCard from "@/components/ProfileHistoryCard";
 import ProfileFavoritesCard from "@/components/ProfileFavoritesCard";
 import { useToast } from "@/hooks/useToast";
 import { ProfileCardSkeleton, RecordItemSkeleton } from "@/components/Skeleton";
 import { getUserId, getCachedProfile, setCachedProfile, setCachedPreferences, logout } from "@/lib/userId";
 import { getAvatarBg, AVATARS } from "@/lib/avatars";
-import type { UserProfile, UserPreferences, DecisionRecord, FavoriteRecord } from "@/types";
+import type { UserProfile, UserPreferences, FavoriteRecord } from "@/types";
 
 export default function ProfilePage() {
   const router = useRouter();
@@ -34,9 +33,7 @@ export default function ProfilePage() {
   const [profile, setProfile] = useState<(UserProfile & { email?: string; preferences?: UserPreferences; decisionCount?: number }) | null>(null);
   const [loading, setLoading] = useState(true);
 
-  const [history, setHistory] = useState<DecisionRecord[]>([]);
   const [favorites, setFavorites] = useState<FavoriteRecord[]>([]);
-  const [historyLoading, setHistoryLoading] = useState(false);
   const [favLoading, setFavLoading] = useState(false);
 
   const [editingUsername, setEditingUsername] = useState(false);
@@ -58,7 +55,6 @@ export default function ProfilePage() {
   const [emailSaving, setEmailSaving] = useState(false);
   const [emailMsg, setEmailMsg] = useState("");
 
-  const [showHistory, setShowHistory] = useState(true);
   const [showFavorites, setShowFavorites] = useState(true);
   const toast = useToast();
 
@@ -93,13 +89,6 @@ export default function ProfilePage() {
   useEffect(() => {
     if (!userId) return;
 
-    setHistoryLoading(true);
-    fetch(`/api/user/history?userId=${userId}`)
-      .then((r) => { if (!r.ok) throw new Error(); return r.json(); })
-      .then((data) => setHistory(Array.isArray(data) ? data : []))
-      .catch(() => {})
-      .finally(() => setHistoryLoading(false));
-
     setFavLoading(true);
     fetch(`/api/user/favorite?userId=${userId}`)
       .then((r) => { if (!r.ok) throw new Error(); return r.json(); })
@@ -500,15 +489,6 @@ export default function ProfilePage() {
           </button>
         </Card>
 
-        <ProfileHistoryCard
-          history={history}
-          loading={historyLoading}
-          open={showHistory}
-          onToggle={() => setShowHistory((v) => !v)}
-          onEmpty={() => router.push("/blindbox")}
-          delay={0.2}
-        />
-
         <ProfileFavoritesCard
           favorites={favorites}
           loading={favLoading}