feat(refs): buildRefs 递归下钻 tab，覆盖嵌套 relation

collectRefs 递归收集:relation 叶子直接收，tab 按 value.type 进选中分支继续下钻
(顺带覆盖 tab 套 tab)。refs 字典现含嵌套关联名(如 sellType.goods)，
为 tab 显示搬前端(子组件渲染 + relation 查 refs)铺好地基。

package.json

@@ -1,6 +1,6 @@
 {
     "name": "shrimp-server",
-    "version": "0.6.3",
+    "version": "0.6.9",
     "description": "Shrimp 框架后端 — 声明式字段驱动的 Node.js 管理后台框架(Express + Mongoose + JWT)",
     "main": "dist/main/index.js",
     "types": "dist/main/index.d.ts",

src/IShrimpType.ts

@@ -278,9 +278,11 @@ export interface IFieldConfig {
     rules?: IFieldRule[]          // 通用验证规则（前后端共用）
     /** tab 类型专用：每个 type 对应的子字段配置 */
     tabs?: { key: any; label: ILabel; fields: IFieldConfig[] }[]
-    /** tab 类型专用：自定义序列化(export 列 / `${key}_label` 用)，默认 JSON.stringify */
+    /** tab 类型专用：展示文本(表格列 `${key}_label`)，给人看、可有损好看，默认 JSON.stringify */
+    format?: (value: any) => string
+    /** tab 类型专用：export 序列化，须与 parse 可逆(机器往返)，默认 JSON.stringify */
     stringify?: (value: any) => string
-    /** tab 类型专用：自定义反序列化(import 还原对象)，默认 JSON.parse */
+    /** tab 类型专用：import 反序列化，须与 stringify 可逆，默认 JSON.parse */
     parse?: (text: string) => any
 }
 
@@ -318,6 +320,7 @@ export interface IPageResult<T> {
     page: number       // 当前页码
     pageSize: number   // 每页数量
     totalPages: number // 总页数
+    refs?: Record<string, Record<string, any>>  // relation 显示名字典: { moduleKey: { id: 显示名 } }，前端显示时查名，替代逐行 _label
 }
 
 // ============== 数据源查询协议 ==============

src/Shrimp/ShrimpTableModule.ts

@@ -60,8 +60,8 @@ export const defaultTypeHandlers: Record<string, IFieldTypeHandler> = {
             }
             return value
         },
-        // 本体原样下发对象(不再 stringify)；展示文本走 _label
-        resLabel: (value, field) => (field.stringify ?? JSON.stringify)(value),
+        // 本体原样下发对象(不再 stringify)；展示文本走 _label，用 format(给人看,可有损)
+        resLabel: (value, field) => (field.format ?? JSON.stringify)(value),
     },
 }
 
@@ -230,22 +230,57 @@ export class ShrimpTableModule<T, P extends ITableCrudProto<T> = ITableCrudProto
 
     private async prepareResponseItems(items: any[]): Promise<any[]> {
         if (items.length === 0) return items
-        const populates = this.getRelationPopulates()
-        if (populates.length > 0 && this.dataSource.populateItems) {
-            await this.dataSource.populateItems(items, populates, this.root.crudRegistry)
-        }
         return Promise.all(items.map(item => this.processResItem(item)))
     }
 
     private async prepareResponseItem(item: any): Promise<any> {
         if (!item) return item
-        const populates = this.getRelationPopulates()
-        if (populates.length > 0 && this.dataSource.populateItems) {
-            await this.dataSource.populateItems([item], populates, this.root.crudRegistry)
-        }
         return this.processResItem(item)
     }
 
+    /**
+     * relation 字段(含 tab 分支里的嵌套 relation)批量解析成 refs 字典: { moduleKey: { id: 显示名 } }。
+     * 整页一次性、按模块各查一次 $in，去重；替代逐行注入 ${key}_label。前端显示时按 id 查名。
+     */
+    private async buildRefs(rows: any[]): Promise<Record<string, Record<string, any>>> {
+        if (rows.length === 0) return {}
+        const buckets = new Map<string, { labelKey: string; ids: Set<string> }>()
+        const add = (moduleKey: string, labelKey: string, id: any) => {
+            let b = buckets.get(moduleKey)
+            if (!b) buckets.set(moduleKey, (b = { labelKey, ids: new Set() }))
+            b.ids.add(String(id))
+        }
+        for (const row of rows) {
+            this.collectRefs(this.fields, (k) => row[k], add)
+        }
+        if (buckets.size === 0) return {}
+        const refs: Record<string, Record<string, any>> = {}
+        for (const [moduleKey, b] of buckets) {
+            const dict: Record<string, any> = {}
+            const crud = this.root.crudRegistry.get(moduleKey)
+            if (crud && b.ids.size > 0) {
+                const res = await crud.list({ where: { _id: { in: Array.from(b.ids) } }, limit: b.ids.size })
+                for (const d of res.list as any[]) dict[String(d._id)] = d[b.labelKey]
+            }
+            refs[moduleKey] = dict
+        }
+        return refs
+    }
+
+    /** 递归收集 relation 引用：relation 叶子直接收；tab 按 value.type 进选中分支继续下钻(覆盖嵌套/tab套tab) */
+    private collectRefs(fields: IFieldConfig[], valueOf: (key: string) => any, add: (moduleKey: string, labelKey: string, id: any) => void): void {
+        for (const f of fields) {
+            const v = valueOf(f.key)
+            if (v == null) continue
+            if (f.type === "relation" && f.relation) {
+                ;(Array.isArray(v) ? v : [v]).forEach((id: any) => id != null && add(f.relation!.moduleKey, f.relation!.labelKey, id))
+            } else if (f.type === ShrimpFieldTypes.Tab && Array.isArray(f.tabs) && typeof v === "object") {
+                const branch = f.tabs.find(t => t.key === v.type)
+                if (branch) this.collectRefs(branch.fields, (k) => v[k], add)
+            }
+        }
+    }
+
     private excludeKeys(item: any, keys: string[]): any {
         if (keys.length === 0) return item
         const result = { ...item }
@@ -259,18 +294,6 @@ export class ShrimpTableModule<T, P extends ITableCrudProto<T> = ITableCrudProto
         return this.excludeKeys(item, this.fields.filter(f => f.hidden).map(f => f.key))
     }
 
-    private getRelationFields(): IFieldConfig[] {
-        return this.fields.filter(f => f.type === "relation" && f.relation)
-    }
-
-    private getRelationPopulates(): IShrimpPopulate[] {
-        return this.getRelationFields().map(f => ({
-            key: f.key,
-            moduleKey: f.relation!.moduleKey,
-            labelKey: f.relation!.labelKey,
-        }))
-    }
-
     private buildQuery(query?: IPageQuery & any): IShrimpQuery {
         const { keyword, page, pageSize, sortBy, sortOrder, filter, ownerId } = query || {}
         const p = page || 1
@@ -285,6 +308,11 @@ export class ShrimpTableModule<T, P extends ITableCrudProto<T> = ITableCrudProto
             const stringLikeTypes = new Set(['string', 'textarea'])
             const where: Record<string, IShrimpCondition> = {}
             for (const [key, value] of Object.entries(filter)) {
+                // _id 始终放行精确过滤(单项查看/relation 跳转用)，无需配 filterable
+                if (key === '_id') {
+                    if (value != null && value !== '') where['_id'] = { eq: value }
+                    continue
+                }
                 const field = filterableFields.get(key)
                 if (!field) continue
                 if (value == null) continue
@@ -339,6 +367,7 @@ export class ShrimpTableModule<T, P extends ITableCrudProto<T> = ITableCrudProto
         const result = await this.dataSource.list(shrimpQuery)
         result.list = await this.prepareResponseItems(result.list)
         result.list = result.list.map(item => this.filterHidden(item))
+        result.refs = await this.buildRefs(result.list)
         return result
     }
 
@@ -395,13 +424,15 @@ export class ShrimpTableModule<T, P extends ITableCrudProto<T> = ITableCrudProto
         delete shrimpQuery.limit
         const result = await this.dataSource.list(shrimpQuery)
         result.list = await this.prepareResponseItems(result.list)
-        // 导出是"给人看"的边界：把带 resLabel 的结构化字段(如 tab)用其字符串文本替换对象本体，
-        // 列保持可读，且能被 import 的 reqFilter(parse)原样还原；去掉额外的 _label 列。
+        // 导出是机器往返的边界：结构化字段(如 tab)用可逆的 stringify 序列化(默认 JSON)，
+        // import 端的 reqFilter(parse) 能原样还原；展示用的 _label 不进导出，去掉。
         const labelFields = this.fields.filter(f => this.getTypeHandler(f)?.resLabel)
         return result.list.map(item => {
             const row = this.filterHidden(item)
             for (const f of labelFields) {
-                if (row[`${f.key}_label`] !== undefined) row[f.key] = row[`${f.key}_label`]
+                if (row[f.key] !== undefined && typeof row[f.key] === "object") {
+                    row[f.key] = (f.stringify ?? JSON.stringify)(row[f.key])
+                }
                 delete row[`${f.key}_label`]
             }
             return row