refactor(售后工单页面): 全面优化页面UI与功能体验

1.  api层优化：新增驳回接口，优化提交接口过滤无用参数
2.  页面重构：统一页面布局为左右分栏拖拽面板，替换原有弹窗模式
3.  样式升级：采用类Word文档风格重构所有页面样式，新增中英双语标题
4.  功能新增：添加流程总览组件，新增PDF导出功能，新增驳回操作
5.  交互优化：调整卡片布局与间距，优化空状态提示，统一标签样式

klp-ui/src/views/wms/post/objection/components/HandlingSchemeSection.vue

@@ -1,7 +1,7 @@
 <template>
   <div v-if="enabled" class="section-container">
     <div class="section-title">
-      <span>处理方案</span>
+      <span>处理方案 <span class="en-sub">· Handling Scheme</span></span>
       <el-button v-if="editable && !editing" size="mini" type="text" icon="el-icon-edit" @click="startEdit">编辑</el-button>
       <template v-if="editing">
         <el-button size="mini" type="text" icon="el-icon-check" @click="handleSave">保存</el-button>
@@ -71,32 +71,48 @@ export default {
 
 <style scoped>
 .section-title {
+  font-family: 'Georgia', 'Times New Roman', 'Noto Serif SC', 'SimSun', serif;
   width: 100%;
   font-size: 15px;
-  font-weight: 600;
-  color: #1d2129;
-  margin: 20px 0 12px 0;
+  font-weight: 700;
+  color: #1a1a1a;
+  margin: 32px 0 16px 0;
   padding: 0 0 10px 0;
-  border-bottom: 2px solid transparent;
-  border-image: linear-gradient(to right, #c0c4cc, transparent) 1;
+  border-bottom: 1px solid #d4d0c8;
   white-space: nowrap;
   display: flex;
   align-items: center;
-  gap: 8px;
+  gap: 10px;
+  letter-spacing: 0.3px;
 }
 .section-title:first-child {
   margin-top: 0;
 }
+.section-title .en-sub {
+  font-size: 11px;
+  font-weight: 400;
+  color: #8c8c8c;
+  letter-spacing: 0.5px;
+  font-family: 'Georgia', 'Times New Roman', serif;
+  font-style: italic;
+}
+.section-title i {
+  font-size: 16px;
+  color: #1a3c6e;
+}
 .empty-data {
-  color: #909399;
+  color: #8c8c8c;
   font-size: 13px;
   padding: 8px 0;
+  font-style: italic;
 }
 .plan-content {
-  padding: 8px;
-  background: #f5f7fa;
-  border-radius: 4px;
+  padding: 12px 16px;
+  background: #faf8f5;
+  border: 1px solid #e8e4de;
+  border-radius: 2px;
   font-size: 13px;
-  line-height: 1.6;
+  line-height: 1.8;
+  color: #1a1a1a;
 }
 </style>