fix(brand): real transparent Meezi icon + guest-menu image placeholder

- Icons/favicon were a plain solid-green square (a 547B placeholder). Replaced
  with the actual Meezi mark (green rounded square + menu lines) on transparent
  corners, generated at 32/48/180/192/512 + a full-bleed green maskable-512.
  Wired 32/48 favicon + 180 apple-touch-icon into the panel and /q metadata.
  Copied the same icons to Koja for consistent branding.
- Guest QR menu showed blank muted boxes for items without a photo. Added a
  minimal themed café-cup placeholder (MenuImageFallback) across all four
  layouts so the menu looks intentional. (Admin/POS already had placeholders.)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

web/dashboard/src/app/[locale]/layout.tsx

@@ -23,11 +23,13 @@ export const metadata: Metadata = {
   manifest: "/manifest.webmanifest",
   icons: {
     icon: [
+      { url: "/icons/icon-32.png", sizes: "32x32", type: "image/png" },
+      { url: "/icons/icon-48.png", sizes: "48x48", type: "image/png" },
       { url: "/icons/icon-192.png", sizes: "192x192", type: "image/png" },
       { url: "/icons/icon-512.png", sizes: "512x512", type: "image/png" },
     ],
-    shortcut: "/icons/icon-192.png",
-    apple: "/icons/icon-192.png",
+    shortcut: "/icons/icon-32.png",
+    apple: "/icons/icon-180.png",
   },
   appleWebApp: {
     capable: true,

web/dashboard/src/app/q/layout.tsx

@@ -9,7 +9,13 @@ export const metadata: Metadata = {
   title: "منوی کافه — میزی",
   description: "مشاهده منو و ثبت سفارش از میز",
   manifest: "/manifest.webmanifest",
-  icons: { icon: "/icons/icon-192.png", apple: "/icons/icon-192.png" },
+  icons: {
+    icon: [
+      { url: "/icons/icon-32.png", sizes: "32x32", type: "image/png" },
+      { url: "/icons/icon-192.png", sizes: "192x192", type: "image/png" },
+    ],
+    apple: "/icons/icon-180.png",
+  },
   robots: { index: false, follow: false },
 };
 

web/dashboard/src/components/qr/qr-guest-menu-body.tsx

@@ -14,6 +14,34 @@ import type { CafeThemePalette } from "@/lib/cafe-theme";
 import { hasMenu3dView } from "@/lib/menu-3d";
 import { Box } from "lucide-react";
 
+/**
+ * Minimal placeholder shown when a menu item has no image — a faint café-cup
+ * glyph on the themed muted surface, so the guest menu looks intentional
+ * instead of showing blank boxes. `className` controls the box size/shape.
+ */
+function MenuImageFallback({ className }: { className?: string }) {
+  return (
+    <div
+      className={cn("flex items-center justify-center qr-fill-muted qr-muted", className)}
+      aria-hidden
+    >
+      <svg
+        viewBox="0 0 24 24"
+        fill="none"
+        stroke="currentColor"
+        strokeWidth="1.4"
+        strokeLinecap="round"
+        strokeLinejoin="round"
+        className="h-2/5 max-h-7 w-2/5 max-w-7 opacity-40"
+      >
+        <path d="M4 8h13v5a4 4 0 0 1-4 4H8a4 4 0 0 1-4-4V8Z" />
+        <path d="M17 9h2.2a2.5 2.5 0 0 1 0 5H17" />
+        <path d="M7 3.5v2M11 3.5v2M14 3.5v2" />
+      </svg>
+    </div>
+  );
+}
+
 export type QrMenuBodyProps = {
   menuStyle: string;
   colors: CafeThemePalette;
@@ -377,8 +405,8 @@ function ListItems({
                   )}
                 />
               ) : (
-                <div
-                  className={cn("rounded-md qr-fill-muted", compact ? "size-10" : "size-12")}
+                <MenuImageFallback
+                  className={cn("rounded-md", compact ? "size-10" : "size-12")}
                 />
               )}
               {hasMenu3dView(item) && onView3d ? (
@@ -450,7 +478,7 @@ function MagazineItems({
                 {img ? (
                   <img src={img} alt="" className="aspect-[16/9] w-full object-cover" />
                 ) : (
-                  <div className="aspect-[16/9] w-full qr-fill-muted" />
+                  <MenuImageFallback className="aspect-[16/9] w-full" />
                 )}
                 {hasMenu3dView(item) && onView3d ? (
                   <View3dChip
@@ -619,7 +647,7 @@ function ItemRowCard({
         {img ? (
           <img src={img} alt="" className="size-[4.5rem] rounded-lg object-cover" />
         ) : (
-          <div className="size-[4.5rem] rounded-lg qr-fill-muted" />
+          <MenuImageFallback className="size-[4.5rem] rounded-lg" />
         )}
         {hasMenu3dView(item) && onView3d ? (
           <View3dChip
@@ -694,7 +722,7 @@ function GridCard({
         {img ? (
           <img src={img} alt="" className="aspect-square w-full object-cover" />
         ) : (
-          <div className="aspect-square w-full qr-fill-muted" />
+          <MenuImageFallback className="aspect-square w-full" />
         )}
         {hasMenu3dView(item) && onView3d ? (
           <View3dChip label={view3dLabel} onClick={() => onView3d(item)} className="absolute bottom-2 start-2" />