{
  "summary": [
    {
      "name": "pbl_ui_page_registry",
      "comment": "前端覆盖层页面注册（12 页面 + 时延预算）",
      "module": "pbl_scense_ext",
      "engine": "mariadb",
      "charset": "utf8mb4",
      "tenant_scoped": true
    }
  ],
  "fields": [
    {
      "name": "tenant_id",
      "comment": "租户ID(强制打头)",
      "null": false,
      "type": "str",
      "length": 32
    },
    {
      "name": "id",
      "comment": "主键",
      "null": false,
      "type": "int",
      "length": 20,
      "unsigned": true,
      "auto_increment": true
    },
    {
      "name": "page_key",
      "comment": "页面键",
      "null": false,
      "type": "str",
      "length": 64
    },
    {
      "name": "title",
      "comment": "标题",
      "null": false,
      "type": "str",
      "length": 128
    },
    {
      "name": "route",
      "comment": "路由",
      "null": false,
      "type": "str",
      "length": 64
    },
    {
      "name": "widget_type",
      "comment": "渲染组件",
      "null": false,
      "type": "str",
      "length": 64
    },
    {
      "name": "requires_role",
      "comment": "所需角色",
      "null": false,
      "type": "str",
      "length": 64
    },
    {
      "name": "budget_ms",
      "comment": "渲染预算",
      "null": false,
      "type": "int"
    },
    {
      "name": "enabled",
      "comment": "启用",
      "null": false,
      "type": "bool"
    },
    {
      "name": "meta_json",
      "comment": "元数据",
      "null": true,
      "type": "json"
    },
    {
      "name": "created_at",
      "comment": "创建时间",
      "null": false,
      "type": "datetime"
    },
    {
      "name": "updated_at",
      "comment": "更新时间",
      "null": false,
      "type": "datetime"
    }
  ],
  "indexes": [
    {
      "name": "uk_upr_key",
      "unique": true,
      "fields": [
        "tenant_id",
        "page_key"
      ]
    },
    {
      "name": "PRIMARY",
      "unique": true,
      "fields": [
        "id"
      ]
    }
  ],
  "codes": []
}