新增打印插件下载功能，允许用户下载XSL-PrintDot.exe，优化打印模板界面以提升用户体验。

jeecgboot-vue3/src/views/print/template/index.vue

@@ -34,6 +34,7 @@
             autocomplete="new-password"
             @blur="persistPrintDotConfig"
           />
+          <a-button @click="downloadPrintPlugin">下载打印插件</a-button>
         </a-space>
         <a-button type="primary" ghost @click="handleCreateNative" v-auth="'print:template:add'">新增原生模板</a-button>
         <a-button type="primary" @click="openQuickPrintModal" v-auth="'print:template:list'">快速打印</a-button>
@@ -228,6 +229,20 @@
     localStorage.setItem(LS_PRINT_DOT_ENABLED, printDotEnabled.value ? '1' : '0');
     void refreshPrinterOptions(false);
   }
+
+  /** 下载 PrintDot 桥接器（静态资源 public/print-plugin/XSL-PrintDot.exe） */
+  function downloadPrintPlugin() {
+    const base = import.meta.env.BASE_URL || '/';
+    const normalizedBase = base.endsWith('/') ? base : `${base}/`;
+    const url = `${normalizedBase}print-plugin/XSL-PrintDot.exe`;
+    const link = document.createElement('a');
+    link.href = url;
+    link.setAttribute('download', 'XSL-PrintDot.exe');
+    link.rel = 'noopener';
+    document.body.appendChild(link);
+    link.click();
+    document.body.removeChild(link);
+  }
   /** 技能转换打印：示例数据（与快速打印占位说明一致） */
   const SKILL_DATA_JSON_EXAMPLE = `{
   "docNo": "MO-001",