feat: three nuxt frontends, demo seed, rounding + money-exponent + rate-cast fixes, archived specs

apps/mall/middleware/auth.ts

@@ -0,0 +1,15 @@
+export default defineNuxtRouteMiddleware(() => {
+  if (import.meta.server) return;
+  const token = localStorage.getItem("vmall.token");
+  let role: string | null = null;
+  try {
+    const raw = localStorage.getItem("vmall.user");
+    const user: unknown = raw ? JSON.parse(raw) : null;
+    if (user && typeof user === "object" && "role" in user && typeof user.role === "string") {
+      role = user.role;
+    }
+  } catch {
+    role = null;
+  }
+  if (!token || role !== "customer") return navigateTo("/login");
+});