fix(frontend): restore staging quality gate contracts

frontend/src/app/page.tsx

@@ -2181,11 +2181,11 @@ export default function Home() {
       const latest = await fetchAccount();
       if (!accountRefreshGuard.current.isCurrent(requestIdentity)) return;
       const nextProfile = readProfile(latest.profile);
-      setProfile((current) => {
-        const activeOther = activeChartId !== "self" && chartLibrary.find((record) => record.id === activeChartId && record.role === "other");
-        return activeOther ? current : preserveShallowEqual(current, nextProfile);
-      });
-      setProfileDraft(nextProfile);
+      const activeOther = activeChartId !== "self"
+        && chartLibrary.find((record) => record.id === activeChartId && record.role === "other");
+      if (!activeOther) {
+        setProfile((current) => preserveShallowEqual(current, nextProfile));
+      }
       setAccount(latest);
       setAccountError("");
     } catch (caught) {
@@ -2300,11 +2300,10 @@ export default function Home() {
 
   async function startNewChat(): Promise<ChatSession | null> {
     if (!account || !modelCatalog || creatingSession) return null;
-    const nextSession = createSession(
-      modelCatalog.defaultModelId,
-      "consultation",
-      chartSnapshotForSession(activeChartId, chartLibrary, profile),
-    );
+    const nextSession = {
+      ...createSession(modelCatalog.defaultModelId),
+      ...chartSnapshotForSession(activeChartId, chartLibrary, profile),
+    };
     const previousSessionId = activeSession?.id ?? "";
     setCreatingSession(true);
     setSessions((current) => [nextSession, ...current]);
@@ -4029,7 +4028,7 @@ export default function Home() {
               {avatarNotice && <p className="form-success avatar-notice" role="status">{avatarNotice}</p>}
             </section>
           )}
-          <section className="sheet-section account-info-section" aria-labelledby="account-info-title">
+          <section className="sheet-section" aria-labelledby="account-info-title">
             <div className="section-heading"><b id="account-info-title">账户信息</b><small>登录与账户识别信息</small></div>
             <dl className="account-info-list">
               <div><dt>昵称</dt><dd>{profile.name.trim() || "尚未设置"}<small>与“我的星盘”名称同步</small></dd></div>