fix: keep stock previews current and clarify member access

static/app.js

@@ -4258,7 +4258,7 @@ async function showStockPreview(code, trigger) {
   document.body.classList.toggle("stock-preview-open", mobile);
   requestAnimationFrame(repositionStockPreview);
 
-  const cacheKey = `${code}:${elements.tradeDate.value}`;
+  const cacheKey = `${code}:latest`;
   const cached = stockPreviewCache.get(cacheKey);
   if (cached && cached.expiresAt > Date.now()) {
     renderStockPreview(cached.payload);
@@ -4268,9 +4268,8 @@ async function showStockPreview(code, trigger) {
   stockPreviewAbortController?.abort();
   stockPreviewAbortController = new AbortController();
   try {
-    const query = new URLSearchParams({ trade_date: elements.tradeDate.value });
     const payload = await apiRequest(
-      `/api/stock/${encodeURIComponent(code)}/preview?${query}`,
+      `/api/stock/${encodeURIComponent(code)}/preview`,
       "GET",
       null,
       { signal: stockPreviewAbortController.signal },
@@ -4291,11 +4290,10 @@ function renderStockPreviewLoading() {
   setText("stockPreviewCode", state.stockPreviewCode || "--");
   setText("stockPreviewName", fallback.name || "正在加载");
   setText("stockPreviewSector", fallback.sector || "--");
-  setText("stockPreviewPrice", meaningfulNumber(fallback.price) ? formatNumber(fallback.price, 2) : "--");
-  const change = number(fallback.change);
-  setText("stockPreviewChange", meaningfulNumber(fallback.change) ? `${signed(change)}%` : "--");
-  document.querySelector("#stockPreviewChange").className = changeClass(change);
-  setText("stockPreviewDate", elements.tradeDate.value);
+  setText("stockPreviewPrice", "--");
+  setText("stockPreviewChange", "--");
+  document.querySelector("#stockPreviewChange").className = "";
+  setText("stockPreviewDate", "最新行情");
   setText("stockPreviewSource", "正在读取行情");
   setText("stockPreviewSummary", "等待行情数据");
   document.querySelector("#stockPreviewLoading").hidden = false;
@@ -4306,15 +4304,15 @@ function renderStockPreview(payload) {
   state.stockPreviewPayload = payload;
   const fallback = state.stockPreviewFallback || {};
   const stock = payload.stock || {};
-  const price = stock.price ?? fallback.price;
-  const change = stock.change ?? fallback.change;
+  const price = stock.price;
+  const change = stock.change;
   setText("stockPreviewCode", stock.code || state.stockPreviewCode);
   setText("stockPreviewName", stock.name && stock.name !== "--" ? stock.name : fallback.name || "--");
   setText("stockPreviewSector", stock.industry && stock.industry !== "其他" ? stock.industry : fallback.sector || "其他");
   setText("stockPreviewPrice", meaningfulNumber(price) ? formatNumber(price, 2) : "--");
   setText("stockPreviewChange", meaningfulNumber(change) ? `${signed(change)}%` : "--");
   document.querySelector("#stockPreviewChange").className = changeClass(change);
-  setText("stockPreviewDate", payload.meta?.trade_date || elements.tradeDate.value);
+  setText("stockPreviewDate", payload.meta?.trade_date || "最新行情");
   document.querySelector("#stockPreviewLoading").hidden = true;
   const intradayAvailable = (payload.intraday || []).length > 0;
   const source = payload.meta?.realtime ? "盘中行情" : "日 K 行情";
@@ -4513,8 +4511,7 @@ function renderAlerts() {
 
 async function openReviewAssistant() {
   if (!hasMemberAccess()) {
-    showToast("复盘助手仅对会员开放");
-    openSettings("membership");
+    openSettings("membership", "复盘助手仅对会员开放");
     return;
   }
   toggleHeaderCommandMenu(false);
@@ -5191,10 +5188,13 @@ function selectAccountPanel(panel) {
   return selected;
 }
 
-async function openSettings(panel = "profile") {
-  selectAccountPanel(panel);
+async function openSettings(panel = "profile", accessNotice = "") {
+  const selectedPanel = selectAccountPanel(panel);
   toggleAccountDropdown(false);
   toggleHeaderCommandMenu(false);
+  const membershipNotice = document.querySelector("#membershipAccessNotice");
+  membershipNotice.textContent = accessNotice;
+  membershipNotice.hidden = selectedPanel !== "membership" || !accessNotice;
   const status = document.querySelector("#connectionStatus");
   status.className = "connection-status";
   status.textContent = "正在读取账号状态";
@@ -5220,7 +5220,7 @@ async function openSettings(panel = "profile") {
       ? `${membership.plan || "会员"}${membership.expires_at ? ` · 有效至 ${membershipDateDisplay(membership.expires_at, true)}` : " · 长期有效"}`
       : membership.is_admin
         ? "管理员拥有智能功能管理权限，但不会因此显示为已开通会员。"
-      : "开通会员后可使用智能选股、问师、问天等智能功能。");
+      : "开通会员后可使用智能选股、问师、问天、复盘助手等智能功能。");
     setText("membershipQuotaHint", `会员默认每日智能分析额度 ${number(access.daily_limit)} 次，由管理员统一设置。`);
     setText("membershipUsage", membership.active
       ? `今日已用 ${number(access.used_today)} 次`