feat(admin): 完善后台角色管理与权限同步，新增当前管理员信息接口

tests/Feature/AdminAuthLoginTest.php

@@ -3,6 +3,7 @@
 use App\Models\AdminUser;
 use App\Lottery\ErrorCode;
 use Illuminate\Support\Str;
+use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Facades\Cache;
 use Illuminate\Foundation\Testing\RefreshDatabase;
 
@@ -13,6 +14,52 @@ test('admin ping requires authentication', function () {
         ->assertJsonPath('code', ErrorCode::AdminUnauthenticated->value);
 });
 
+test('admin auth me returns current admin profile', function () {
+    $admin = AdminUser::query()->create([
+        'username' => 'admin_me',
+        'name' => '管理员本人',
+        'email' => null,
+        'password' => 'secret-strong',
+        'status' => 0,
+    ]);
+
+    $roleId = DB::table('admin_roles')->insertGetId([
+        'code' => 'super_admin',
+        'slug' => 'super_admin',
+        'name' => '超级管理员',
+        'description' => null,
+        'status' => 1,
+        'is_system' => true,
+        'sort_order' => 0,
+        'created_at' => now(),
+        'updated_at' => now(),
+    ]);
+    $siteId = DB::table('admin_sites')->insertGetId([
+        'code' => 'default',
+        'name' => '默认站点',
+        'is_default' => true,
+        'status' => 1,
+        'created_at' => now(),
+        'updated_at' => now(),
+    ]);
+
+    DB::table('admin_user_site_roles')->insert([
+        'admin_user_id' => $admin->id,
+        'site_id' => $siteId,
+        'role_id' => $roleId,
+        'granted_at' => now(),
+    ]);
+
+    $token = $admin->createToken('admin-api', ['*'], now()->addDay())->plainTextToken;
+
+    $this->withHeader('Authorization', 'Bearer '.$token)
+        ->getJson('/api/v1/admin/auth/me')
+        ->assertOk()
+        ->assertJsonPath('code', ErrorCode::Success->value)
+        ->assertJsonPath('data.admin.username', 'admin_me')
+        ->assertJsonPath('data.admin.navigation.0.segment', 'dashboard');
+});
+
 test('admin login returns bearer token when captcha passes validation', function () {
     AdminUser::query()->create([
         'username' => 'tester',