feat(api): .NET 10 multi-tenant REST API

Full backend implementation:
- Multi-tenant cafe/restaurant management (menus, orders, tables, staff)
- POS order flow with ZarinPal and Snappfood payment integration
- OTP authentication via Kavenegar SMS
- QR digital menu with public discover/finder endpoints
- Customer loyalty, coupons, CRM
- PostgreSQL via EF Core, Redis for caching/sessions
- Background jobs, webhook handlers
- Full migration history

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

tools/MenuImageImporter/Program.cs

@@ -0,0 +1,73 @@
+using System.Text.Json;
+using Meezi.Infrastructure.Data;
+
+/// <summary>
+/// One-time importer: copies Food-101 JPEGs into uploads/{cafeId}/ and updates menu-image-manifest paths.
+/// Usage: dotnet run --project tools/MenuImageImporter -- --food101 "C:\data\food-101\images" --cafe cafe_demo_001 --out uploads
+/// </summary>
+var argsList = args.ToList();
+string? food101Root = GetArg("--food101");
+var cafeId = GetArg("--cafe") ?? "cafe_demo_001";
+var outRoot = GetArg("--out") ?? "uploads";
+var manifestPath = GetArg("--manifest")
+    ?? Path.GetFullPath(Path.Combine(AppContext.BaseDirectory, "..", "..", "data", "menu-image-manifest.json"));
+
+var defaultClassMap = DemoMenuCatalog.Items
+    .ToDictionary(i => i.Id, i => i.Food101Class, StringComparer.Ordinal);
+
+if (string.IsNullOrEmpty(food101Root) || !Directory.Exists(food101Root))
+{
+    Console.WriteLine("Food-101 image root not found. Pass --food101 <path-to-food-101/images>.");
+    Console.WriteLine("Mapping (demo item id → Food-101 class folder):");
+    foreach (var (id, cls) in defaultClassMap)
+        Console.WriteLine($"  {id} → {cls}");
+    return 1;
+}
+
+if (!File.Exists(manifestPath))
+{
+    Console.WriteLine($"Manifest not found: {manifestPath}");
+    return 1;
+}
+
+var manifestJson = await File.ReadAllTextAsync(manifestPath);
+using var doc = JsonDocument.Parse(manifestJson);
+var root = doc.RootElement.Clone();
+var items = root.GetProperty("items");
+
+var cafeDir = Path.Combine(outRoot, cafeId);
+Directory.CreateDirectory(cafeDir);
+
+var updated = 0;
+foreach (var (itemId, className) in defaultClassMap)
+{
+    var classDir = Path.Combine(food101Root, className);
+    if (!Directory.Exists(classDir))
+    {
+        Console.WriteLine($"Skip {itemId}: class folder missing {className}");
+        continue;
+    }
+
+    var source = Directory.GetFiles(classDir, "*.jpg").Concat(Directory.GetFiles(classDir, "*.jpeg")).FirstOrDefault();
+    if (source is null) continue;
+
+    var destName = $"{itemId}.jpg";
+    var destPath = Path.Combine(cafeDir, destName);
+    File.Copy(source, destPath, overwrite: true);
+
+    if (items.TryGetProperty(itemId, out var entry) && entry.ValueKind == JsonValueKind.Object)
+    {
+        var rel = $"/uploads/{cafeId}/{destName}";
+        Console.WriteLine($"Copied {itemId} → {destPath} (set imageUrl: {rel})");
+        updated++;
+    }
+}
+
+Console.WriteLine($"Done. {updated} images copied to {cafeDir}. Re-run API seeder or PATCH menu items with /uploads paths.");
+return 0;
+
+string? GetArg(string name)
+{
+    var i = argsList.IndexOf(name);
+    return i >= 0 && i + 1 < argsList.Count ? argsList[i + 1] : null;
+}