fix: 统一逐租户上下文执行

src/Infrastructure/TakeoutSaaS.Infrastructure/Identity/Persistence/EfRolePermissionRepository.cs

@@ -16,13 +16,17 @@ public sealed class EfRolePermissionRepository(IdentityDbContext dbContext) : IR
     /// <param name="roleIds">角色 ID 集合。</param>
     /// <param name="cancellationToken">取消标记。</param>
     /// <returns>角色权限映射列表。</returns>
-    public Task<IReadOnlyList<RolePermission>> GetByRoleIdsAsync(long tenantId, IEnumerable<long> roleIds, CancellationToken cancellationToken = default)
-        => dbContext.RolePermissions
-            .IgnoreQueryFilters()
+    public async Task<IReadOnlyList<RolePermission>> GetByRoleIdsAsync(long tenantId, IEnumerable<long> roleIds, CancellationToken cancellationToken = default)
+    {
+        // 1. 查询角色权限映射
+        var mappings = await dbContext.RolePermissions
             .AsNoTracking()
             .Where(x => x.TenantId == tenantId && x.DeletedAt == null && roleIds.Contains(x.RoleId))
-            .ToListAsync(cancellationToken)
-            .ContinueWith(t => (IReadOnlyList<RolePermission>)t.Result, cancellationToken);
+            .ToListAsync(cancellationToken);
+
+        // 2. (空行后) 返回只读列表
+        return mappings;
+    }
 
     /// <summary>
     /// 批量新增角色权限。