chore: init saasshop repo + sql migrations runner + gitee go

app/Http/Controllers/Admin/DashboardController.php

@@ -0,0 +1,57 @@
+<?php
+
+namespace App\Http\Controllers\Admin;
+
+use App\Http\Controllers\Concerns\ResolvesPlatformAdminContext;
+use App\Http\Controllers\Controller;
+use App\Models\Admin;
+use App\Models\Order;
+use App\Models\Product;
+use App\Models\Merchant;
+use App\Models\User;
+use App\Support\CacheKeys;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Cache;
+use Illuminate\View\View;
+
+class DashboardController extends Controller
+{
+    use ResolvesPlatformAdminContext;
+
+    public function index(Request $request): View
+    {
+        $admin = $this->ensurePlatformAdmin($request);
+
+        $stats = Cache::remember(
+            CacheKeys::platformDashboardStats(),
+            now()->addMinutes(10),
+            fn () => [
+                'merchants' => Merchant::count(),
+                'admins' => Admin::count(),
+                'users' => User::count(),
+                'products' => Product::count(),
+                'orders' => Order::count(),
+                'active_merchants' => Merchant::query()->where('status', 'active')->count(),
+                'pending_orders' => Order::query()->where('status', 'pending')->count(),
+            ]
+        );
+
+        return view('admin.dashboard', [
+            'adminName' => $admin->name,
+            'stats' => $stats,
+            'platformAdmin' => $admin,
+            'cacheMeta' => [
+                'store' => config('cache.default'),
+                'ttl' => '10m',
+            ],
+            'platformOverview' => [
+                'system_role' => '总台管理',
+                'current_scope' => '总台运营方视角',
+                'merchant_mode' => '统一管理多个站点',
+                'channel_count' => 5,
+                'active_merchants' => $stats['active_merchants'],
+                'pending_orders' => $stats['pending_orders'],
+            ],
+        ]);
+    }
+}