{
  "summary": {
    "name": "approval_step",
    "label": "审批步骤",
    "comment": "审批工作流步骤定义"
  },
  "fields": [
    {
      "name": "id",
      "title": "ID",
      "type": "str",
      "length": 32,
      "nullable": false,
      "comments": "主键UUID"
    },
    {
      "name": "workflow_id",
      "title": "工作流ID",
      "type": "str",
      "length": 32,
      "nullable": false,
      "comments": "关联的工作流"
    },
    {
      "name": "step_name",
      "title": "步骤名称",
      "type": "str",
      "length": 100,
      "nullable": false,
      "comments": "审批步骤名称"
    },
    {
      "name": "step_order",
      "title": "步骤顺序",
      "type": "long",
      "nullable": false,
      "comments": "步骤执行顺序"
    },
    {
      "name": "approver_type",
      "title": "审批人类型",
      "type": "str",
      "length": 20,
      "nullable": false,
      "comments": "role/user/department/dynamic"
    },
    {
      "name": "approver_value",
      "title": "审批人值",
      "type": "str",
      "length": 100,
      "nullable": true,
      "comments": "角色ID/用户ID/部门ID/动态表达式"
    },
    {
      "name": "approval_type",
      "title": "审批类型",
      "type": "str",
      "length": 20,
      "nullable": false,
      "comments": "single/multiple/sequential/parallel"
    },
    {
      "name": "timeout_hours",
      "title": "超时小时数",
      "type": "long",
      "nullable": true,
      "comments": "审批超时时间（小时）"
    },
    {
      "name": "description",
      "title": "描述",
      "type": "str",
      "length": 500,
      "nullable": true,
      "comments": "步骤描述"
    },
    {
      "name": "org_id",
      "title": "组织ID",
      "type": "str",
      "length": 32,
      "nullable": false,
      "comments": "多租户组织隔离"
    }
  ],
  "indexes": [
    {
      "name": "idx_step_workflow",
      "idxtype": "index",
      "fields": ["workflow_id"]
    },
    {
      "name": "idx_step_order",
      "idxtype": "index",
      "fields": ["workflow_id", "step_order"]
    }
  ],
  "codes": [
    {
      "tblname": "appcodes",
      "codevalue": "APPROVER_TYPE",
      "valuefield": "k",
      "textfield": "v"
    },
    {
      "tblname": "appcodes",
      "codevalue": "APPROVAL_TYPE", 
      "valuefield": "k",
      "textfield": "v"
    }
  ]
}