feat: 预付金模板各 Tab 弹窗标题区分，页面标题去 V2，客户多选保存改为读控件值

- 四个 Tab 的新增/编辑/复制弹窗标题带各自归属（全局/客户/自定义/绑定），
  客户预付金 tab 原与全局同为"编辑默认预付金模板"无法区分
- 列表页 ViewBag.Title 去掉 V2
- 客户多选保存取值改为 $("#ClientId").val()（与兄弟页面读 chosen 一致），
  不再依赖 v-model 同步；编辑态仍走表单对象原绑定客户

YLErpWeb/Views/client_margin_template/client_margin_templateEdit.cshtml

@@ -51,7 +51,7 @@
                     @if (pageObj.isAdd)
                     {
                         @*新增：客户多选（类似适用簿记账户），保存时按选中客户逐条调用原有单条保存接口*@
-                        <select id="ClientId" class="chosen-select" multiple data-placeholder="请选择客户" style="width:260px;" v-model="selectedClientIds">
+                        <select id="ClientId" class="chosen-select" multiple data-placeholder="请选择客户" style="width:260px;">
                             <option v-for="item in clientNames" v-bind:value="item.Value">{{item.Text}}</option>
                         </select>
                     }

YLErpWeb/Views/client_margin_template/client_margin_templateList.cshtml

@@ -1,6 +1,6 @@
 @using YLErp.Enums;
 @{
-    ViewBag.Title = "预付金模板V2";
+    ViewBag.Title = "预付金模板";
     ViewBag.Menu = "数据管理-预付金模板V2";
     Layout = "~/Views/Shared/_MainLayout.cshtml";
 }
@@ -70,7 +70,7 @@
 
         function setClientMarginTemplate(id) {
             var editurl = "/client_margin_template/client_margin_templateEdit/?id=" + id;
-            main.infopage("设置客户预付金", editurl, { area: ['1480px', '800px'] });
+            main.infopage(id ? "编辑客户预付金绑定" : "新增客户预付金绑定", editurl, { area: ['1480px', '800px'] });
         }
 
         function deleteClientMarginTemplate(id) {

YLErpWeb/Views/margin_template_v2/margin_template_v2ClientList.cshtml

@@ -1,5 +1,5 @@
 @{
-    ViewBag.Title = "预付金模板V2";
+    ViewBag.Title = "预付金模板";
     ViewBag.Menu = "数据管理-预付金模板V2";
     Layout = "~/Views/Shared/_MainLayout.cshtml";
 }
@@ -119,13 +119,13 @@
             if (id) {
                 editurl = "/margin_template_v2/margin_template_v2ClientEdit/?enid=" + id;
             }
-            main.infopage("编辑默认预付金模板", editurl, { area: ['1480px', '800px'] });
+            main.infopage(id ? "编辑客户预付金模板" : "新增客户预付金模板", editurl, { area: ['1480px', '800px'] });
         }
 
         function startCopymargin_template_v2(id) {
             var editurl = "/margin_template_v2/margin_template_v2ClientCopy/?enid=" + id;
 
-            main.infopage("复制默认预付金模板", editurl, { area: ['1480px', '800px'] });
+            main.infopage("复制客户预付金模板", editurl, { area: ['1480px', '800px'] });
         }
 
         function deleteEditmargin_template_v2(id) {

YLErpWeb/Views/margin_template_v2/margin_template_v2DefaultList.cshtml

@@ -1,5 +1,5 @@
 @{
-    ViewBag.Title = "预付金模板V2";
+    ViewBag.Title = "预付金模板";
     ViewBag.Menu = "数据管理-预付金模板V2";
     Layout = "~/Views/Shared/_MainLayout.cshtml";
 }
@@ -127,12 +127,12 @@
             if (id) {
                 editurl = "/margin_template_v2/margin_template_v2DefaultEdit/?enid=" + id;
             }
-            main.infopage("编辑默认预付金模板", editurl, { area: ['1480px', '800px'] });
+            main.infopage(id ? "编辑全局预付金模板" : "新增全局预付金模板", editurl, { area: ['1480px', '800px'] });
         }
 
         function startCopymargin_template_v2(id) {
             editurl = "/margin_template_v2/margin_template_v2DefaultCopy/?enid=" + id;
-            main.infopage("复制默认预付金模板", editurl, { area: ['1480px', '800px'] });
+            main.infopage("复制全局预付金模板", editurl, { area: ['1480px', '800px'] });
         }
 
         function deleteEditmargin_template_v2(id) {

YLErpWeb/Views/margin_template_v2/margin_template_v2List.cshtml

@@ -1,6 +1,6 @@
 @using YLErp.Enums;
 @{
-    ViewBag.Title = "预付金模板V2";
+    ViewBag.Title = "预付金模板";
     ViewBag.Menu = "数据管理-预付金模板V2";
     Layout = "~/Views/Shared/_MainLayout.cshtml";
 }
@@ -134,13 +134,13 @@
             if (id) {
                 editurl = "/margin_template_v2/margin_template_v2Edit/?enid=" + id;
             }
-            main.infopage("编辑预付金模板", editurl, { area: ['1180px', '92%'] });
+            main.infopage(id ? "编辑自定义预付金模板" : "新增自定义预付金模板", editurl, { area: ['1180px', '92%'] });
         }
 
         function startCopymargin_template_v2(id) {
             editurl = "/margin_template_v2/margin_template_v2Copy/?enid=" + id;
 
-            main.infopage("复制预付金模板", editurl, { area: ['1180px', '92%'] });
+            main.infopage("复制自定义预付金模板", editurl, { area: ['1180px', '92%'] });
         }
 
         function startDeletemargin_template_v2(id) {

YLErpWeb/wwwroot/Scripts/app/client/clientMarginTemplateEdit.js

@@ -25,8 +25,6 @@ const vue = new Vue({
         marginTemplates: page.marginTemplates,
         marginTemplate: page.marginTemplate,
         clientNames: [],
-        //新增模式的客户多选（编辑模式仍为单条绑定，走 clientMarginTemplate.ClientId）
-        selectedClientIds: [],
         isAdd: page.isAdd
     },
     created: function () {
@@ -127,7 +125,12 @@ const vue = new Vue({
         //当前内容上供修正重试（已成功的客户重试会因同天同结构互斥校验失败，不会重复入库）
         saveMarginTemplateV2() {
             var thisObj = this;
-            var ids = this.isAdd ? (this.selectedClientIds || []) : [this.clientMarginTemplate.ClientId];
+            //取值直接读控件（与兄弟页面读 chosen 的 $("#tradeTypes").val() 一致，不依赖 v-model 同步）：
+            //新增=多选控件 val()（数组）；编辑=表单对象上的原绑定客户
+            var chosenVal = this.isAdd ? $("#ClientId").val() : this.clientMarginTemplate.ClientId;
+            var ids = this.isAdd
+                ? (Array.isArray(chosenVal) ? chosenVal : (chosenVal ? [chosenVal] : []))
+                : [chosenVal];
             if (!ids.length) {
                 main.message("请至少选择一个客户");
                 return;