feat: 更新为 1.2.0 构建产物（内核重构版）

- 产物替换为 funjiaui.es.js / funjiaui.cjs.js / funjiaui.umd.js
- style.css 更新，新增 index.d.ts 与各组件类型声明目录
- 移除旧产物 um_table.es.js（1.0.0 的 ES 包，历史与 v1.0.0 标签仍可回溯）
- package.json 补齐 module / types / unpkg / jsdelivr / files 字段，
  并将 vue、element-plus、@element-plus/icons-vue 声明为 peerDependencies
- 新增 README 说明产物清单与用法

index.d.ts

@@ -0,0 +1,33 @@
+/**
+ * 组件库出口。
+ *
+ * 改造前这里只导出了 4 个组件，类型一个都没对外暴露 —— 使用方拿不到
+ * `IFieldMetaValue` / `TFieldMetaValue` 这些写装饰器必需的入参类型，
+ * 只能用 `any` 硬写。
+ *
+ * 现在：
+ * - 组件全量导出（只导出无重依赖的那批，CodeMirror / SingleUpload 之类的
+ *   业务组件依赖第三方库较多，需要时单独按路径引用）；
+ * - 类型与内核（core）一并导出，允许使用方复用反射扫描 / 事件链能力。
+ */
+export { default as UmByClass } from "./UmTable/UmByClass.vue";
+export { default as UmByClassEnhance } from "./UmTable/UmByClassEnhance.vue";
+export { default as UmTable } from "./UmTable/UmTable.vue";
+export { default as UmTableColumn } from "./UmTable/UmTableColumn.vue";
+export { default as UmTableForm } from "./UmTable/UmTableForm.vue";
+export { default as UmTableDialog } from "./UmTable/UmTableDialog.vue";
+export { default as UmSearchForm } from "./UmTable/UmSearchForm.vue";
+export { default as UmSyncNodeForm } from "./UmTable/UmSyncNodeForm.vue";
+export { default as UmColumnRender } from "./UmTable/UmColumnRender.vue";
+export { default as UmTableOperate } from "./UmTable/UmTableOperate.vue";
+export { default as UmTableToolbar } from "./UmTable/UmTableToolbar.vue";
+export * from "./UmTable/index";
+export { default as UmDialog } from "./UmDialog/index.vue";
+export { default as UmPagination } from "./UmPagination/index.vue";
+export { default as Iconfont } from "./Iconfont/index.vue";
+export { default as UmTree } from "./UmTree/UmTree.vue";
+export { default as UmDistrictTree } from "./UmTree/UmDistrictTree.vue";
+export { default as UmDistrictTreeNode } from "./UmTree/UmDistrictTreeNode.vue";
+export { default as AreaTree } from "./UmTree/AreaTree.vue";
+export { default as UmTreeSelect } from "./UmTreeSelect/UmTreeSelect.vue";
+export * from "./UmTree/types";