feat(relation): 用整页 refs 字典替代逐行 _label

list 响应新增 refs: { moduleKey: { id: 显示名 } }，整页一次性按模块批量查、去重；
去掉 relation 的 populateItems→${key}_label 逐行注入。前端显示时按 id 查 refs。
tab 的 resLabel/_label 不动(留待复合那步)。这是嵌套引用的地基:collectRefs 以后加
tab 的 children() 下钻即可覆盖任意深度。

src/Shrimp/ShrimpTableModule.ts

@@ -230,22 +230,45 @@ 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)
     }
 
+    /**
+     * 顶层 relation 字段批量解析成 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>>> {
+        const relFields = this.getRelationFields()
+        if (relFields.length === 0 || rows.length === 0) return {}
+        const buckets = new Map<string, { labelKey: string; ids: Set<string> }>()
+        for (const row of rows) {
+            for (const f of relFields) {
+                const v = row[f.key]
+                if (v == null) continue
+                const { moduleKey, labelKey } = f.relation!
+                let b = buckets.get(moduleKey)
+                if (!b) buckets.set(moduleKey, (b = { labelKey, ids: new Set() }))
+                ;(Array.isArray(v) ? v : [v]).forEach((id: any) => id != null && b!.ids.add(String(id)))
+            }
+        }
+        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
+    }
+
     private excludeKeys(item: any, keys: string[]): any {
         if (keys.length === 0) return item
         const result = { ...item }
@@ -263,14 +286,6 @@ export class ShrimpTableModule<T, P extends ITableCrudProto<T> = ITableCrudProto
         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
@@ -339,6 +354,7 @@ 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
     }