fix(crud): add/edit 返回普通对象(toObject/lean),不再抖出 mongoose Document 内部

add 用 create 返回 Document、edit 用 findByIdAndUpdate 返回 Document,下游 processResItem
的 {...item} 会把 $__/_doc/$isNew 等内部属性展开、真数据埋进 _doc。改:add 转 toObject、
edit 加 .lean()(与 list/get 一致)。响应回归干净 POJO。

package.json

@@ -1,6 +1,6 @@
 {
     "name": "shrimp-server",
-    "version": "0.6.11",
+    "version": "0.7.1",
     "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

@@ -235,7 +235,6 @@ export const ShrimpFieldTypes = {
     Textarea: "textarea" as ShrimpFieldType,
     Password: "password" as ShrimpFieldType,
     Relation: "relation" as ShrimpFieldType,
-    Json: "json" as ShrimpFieldType,
     Tab: "tab" as ShrimpFieldType,
     Object: "object" as ShrimpFieldType,
     Array: "array" as ShrimpFieldType,

src/Shrimp/ShrimpTableModule.ts

@@ -27,26 +27,6 @@ export const defaultTypeHandlers: Record<string, IFieldTypeHandler> = {
     [ShrimpFieldTypes.Boolean]: {
         defaultValue: false,
     },
-    [ShrimpFieldTypes.Json]: {
-        reqFilter: (value) => {
-            if (value == null || value === "") return undefined
-            if (typeof value === "string") {
-                try {
-                    return JSON.parse(value)
-                } catch {
-                    throw new ShrimpError({ t: 'shrimp.invalidJson' })
-                }
-            }
-            return value
-        },
-        resFilter: (value) => {
-            if (value == null) return value
-            if (typeof value === "object") {
-                return JSON.stringify(value)
-            }
-            return value
-        },
-    },
     [ShrimpFieldTypes.Tab]: {
         // tab 是结构化字段：库里/响应/编辑全程是对象，只在"给人看"的边界(import/export/label)走字符串。
         reqFilter: (value, field) => {

src/forMongo/MongoShrimpCrud.ts

@@ -107,10 +107,11 @@ export class MongoShrimpCrud<T> implements ShrimpCrud<T> {
         return await this.model.findById(id).lean() as T | null
     }
     async add(item: Omit<T, '_id'>): Promise<T> {
-        return await this.model.create(item)
+        const doc = await this.model.create(item)
+        return doc.toObject() as T   // 转普通对象，否则下游 {...item} 展开的是 mongoose Document 内部($__/_doc/$isNew)
     }
     async edit(id: string, item: Partial<T>): Promise<T | null> {
-        return await this.model.findByIdAndUpdate(id, item, { new: true })
+        return await this.model.findByIdAndUpdate(id, item, { new: true }).lean() as T | null
     }
     async delete(id: string): Promise<boolean> {
         const result = await this.model.findByIdAndDelete(id)