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

app/Models/AdminRole.php

@@ -9,6 +9,8 @@ use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 
 final class AdminRole extends Model
 {
+    public const ROLE_SUPER_ADMIN = 'super_admin';
+
     protected $table = 'admin_roles';
 
     protected static function booted(): void
@@ -59,6 +61,25 @@ final class AdminRole extends Model
      */
     public function legacyPermissionSlugs(): array
     {
+        if (DB::getSchemaBuilder()->hasTable('admin_role_legacy_permissions')) {
+            $slugs = DB::table('admin_role_legacy_permissions')
+                ->where('role_id', $this->id)
+                ->pluck('permission_slug')
+                ->all();
+
+            $out = [];
+            foreach ($slugs as $slug) {
+                if (is_string($slug) && $slug !== '') {
+                    $out[$slug] = true;
+                }
+            }
+
+            $keys = array_keys($out);
+            sort($keys);
+
+            return $keys;
+        }
+
         $codes = DB::table('admin_role_menu_actions as rma')
             ->join('admin_menu_actions as ma', 'ma.id', '=', 'rma.menu_action_id')
             ->where('rma.role_id', $this->id)
@@ -68,4 +89,56 @@ final class AdminRole extends Model
 
         return AdminPermissionBridge::legacySlugsGrantedByMenuActionCodes($codes);
     }
+
+    /**
+     * @param  list<string>  $slugs
+     */
+    public function syncLegacyPermissionSlugs(array $slugs): void
+    {
+        $legacySlugs = array_values(array_unique(array_filter(
+            $slugs,
+            static fn ($slug): bool => is_string($slug) && $slug !== '',
+        )));
+
+        $codes = [];
+        foreach ($legacySlugs as $slug) {
+            $codes = array_merge($codes, AdminPermissionBridge::menuActionCodesForLegacy($slug));
+        }
+        $codes = array_values(array_unique($codes));
+
+        $ids = DB::table('admin_menu_actions')
+            ->whereIn('permission_code', $codes)
+            ->where('status', 1)
+            ->pluck('id')
+            ->all();
+
+        DB::table('admin_role_menu_actions')->where('role_id', $this->id)->delete();
+        foreach ($ids as $mid) {
+            DB::table('admin_role_menu_actions')->insert([
+                'role_id' => $this->id,
+                'menu_action_id' => (int) $mid,
+            ]);
+        }
+
+        if (DB::getSchemaBuilder()->hasTable('admin_role_legacy_permissions')) {
+            DB::table('admin_role_legacy_permissions')->where('role_id', $this->id)->delete();
+            $now = now();
+            foreach ($legacySlugs as $slug) {
+                DB::table('admin_role_legacy_permissions')->insert([
+                    'role_id' => $this->id,
+                    'permission_slug' => $slug,
+                    'created_at' => $now,
+                    'updated_at' => $now,
+                ]);
+            }
+        }
+    }
+
+    public function assignedUserCount(): int
+    {
+        return (int) DB::table('admin_user_site_roles')
+            ->where('role_id', $this->id)
+            ->distinct()
+            ->count('admin_user_id');
+    }
 }