fix(app): re-check the sales-expert flag on every dashboard visit

The "سفارش مشتریان" / "مشتریان من" entries are shown from session.isSalesExpert,
which was fetched from /expert/whoami only once, at sign-in. A slow or failed
request (silently swallowed) left the flag false until the next login, so an
expert saw a customer-only menu. The dashboard now asks again on mount and on
every re-activation, and keeps the current value when the request fails.

Rebuilds user-app and user-app-v2 dist.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

apps/user-app/src/views/user/DashboardView.vue

@@ -320,10 +320,27 @@ async function onRefresh() {
   }
 }
 
+// D21 — the expert flag used to be fetched once, at sign-in, and a slow or
+// failed whoami left it false for good (the expert entries stayed hidden until
+// the next login). Ask again on every dashboard visit; a failed request keeps
+// whatever the flag already is.
+async function syncExpertFlag() {
+  if (!session.isLoggedIn) return
+  try {
+    const who = await api.getExpertIdentity()
+    session.setSalesExpert(who.isSalesExpert)
+  } catch {
+    /* keep the current flag */
+  }
+}
+
 let activatedOnce = false
 onActivated(() => {
   // Kept alive by MasterLayout, so every later visit lands here, not in onMounted.
-  if (activatedOnce) void loadDashboard()
+  if (activatedOnce) {
+    void loadDashboard()
+    void syncExpertFlag()
+  }
   activatedOnce = true
 })
 
@@ -332,6 +349,7 @@ onActivated(() => {
 const { revealed, revealDelay, reveal } = useReveal('dashboard')
 
 onMounted(async () => {
+  void syncExpertFlag()
   await loadDashboard()
   reveal()
 })