fix(price): delay empty-quote UI until settle window

Avoid flashing no-quote too early while waiting for live/SSE price after first empty response.

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

src/utils/priceSocket.ts

@@ -426,9 +426,14 @@ function handleLastPayload(payload: unknown) {
 
   const raw = payload as Price & { settings_patch?: unknown }
   const last = applyBoardSpecialToLastPayload(raw)
-  const hasQuote = last.price_last != null || last.price != null || last.buy != null
+  const hasDisplayable =
+    Number(last.buy ?? 0) > 0
+    || Number(last.sell ?? 0) > 0
+    || Number(last.price_last ?? 0) > 0
+    || Number(last.price ?? 0) > 0
   const hasStatus = last.status != null || typeof last.closed === 'boolean'
-  if (!hasQuote && !hasStatus) {
+
+  if (!hasDisplayable && !hasStatus) {
     if (Array.isArray(raw.settings_patch) && raw.settings_patch.length) {
       touchStreamActivity()
       void applySettingsFromStream(raw.settings_patch)
@@ -436,6 +441,22 @@ function handleLastPayload(payload: unknown) {
     return
   }
 
+  // SSE گاهی last خالی/no_quote می‌فرستد؛ قیمت معتبر فعلی را پاک نکن
+  if (!hasDisplayable) {
+    if (Array.isArray(raw.settings_patch) && raw.settings_patch.length) {
+      touchStreamActivity()
+      void applySettingsFromStream(raw.settings_patch)
+    }
+    void import('@/utils/price').then(({ getTradeBuyPrice, lastPrice }) => {
+      const keepCurrent =
+        getTradeBuyPrice(lastPrice.value) > 0 && last.status !== 'closed'
+      touchStreamActivity()
+      if (keepCurrent) return
+      void applyLastFromStream(last)
+    })
+    return
+  }
+
   touchStreamActivity()
   void applyLastFromStream(last)
 }