fix(views): 修复独立页切换时弹窗残留问题

- 独立整页固定使用普通 div 容器，取消动态切换 el-dialog 避免切换时弹窗 DOM 残留
- 删除相关 dialogVisible、dialogTitle、页脚弹窗动态分支代码以简化逻辑
- watch $route 调整，优化独立页初始化流程，避免不必要的关闭弹窗操作
- 新增 closeInnerDialogs 方法，页面卸载或 keep-alive deactivate 时关闭所有二级弹窗
- 对 loading-manage 与 project-apply 两个模块同步改造，统一处理弹窗状态和容器渲染
- 解决 keep-alive 缓存导致旧弹窗一直挂载在 body 上的问题，改善用户切换体验

src/views/business/loading-manage.vue

@@ -376,27 +376,17 @@
       />
     </div>
 
-    <component
-      :is="isStandalonePage ? 'div' : 'el-dialog'"
-      :model-value="isStandalonePage ? undefined : dialogVisible"
-      :title="isStandalonePage ? undefined : dialogTitle"
-      :append-to-body="isStandalonePage ? undefined : true"
-      :destroy-on-close="isStandalonePage ? undefined : true"
-      :width="isStandalonePage ? undefined : '96%'"
-      :top="isStandalonePage ? undefined : '3vh'"
-      :class="[
-        'loading-manage-dialog',
-        { 'loading-manage-form-dialog': isStandalonePage },
-        { 'loading-manage-form-page': isStandalonePage },
-      ]"
-      :modal="isStandalonePage ? undefined : true"
-      :show-close="isStandalonePage ? undefined : true"
-      :close-on-click-modal="isStandalonePage ? undefined : true"
-      :close-on-press-escape="isStandalonePage ? undefined : true"
-      @update:model-value="value => !isStandalonePage && (dialogVisible = value)"
-      @closed="resetLoadingDialog"
+    <!--
+      配载单的新增/编辑/重新派单/详情全部是独立整页，这里固定渲染普通容器，不再按路由切换 el-dialog。
+      原因：标签页 keep-alive 会把本页实例缓存下来，若容器随 $route 由 div 变回 el-dialog，
+      被缓存的实例会在离开本页后渲染出 append-to-body 的弹窗并永久停留在 body 上（Vue 的
+      KeepAlive.deactivate → Teleport.move 不会搬走 append-to-body 的弹窗 DOM），表现为“点左侧菜单又弹出弹窗”。
+    -->
+    <div
+      v-if="isStandalonePage"
+      class="loading-manage-dialog loading-manage-form-dialog loading-manage-form-page"
     >
-      <div v-if="isStandalonePage" class="archive-page-form__title">{{
+      <div class="archive-page-form__title">{{
         isStandaloneDetailPage ? detailPageTitle : formPageTitle
       }}</div>
       <div v-loading="dialogLoading" class="loading-manage-dialog__body">
@@ -1231,7 +1221,7 @@
         </el-form>
       </div>
 
-      <div v-if="isStandalonePage" class="loading-manage-dialog__footer">
+      <div class="loading-manage-dialog__footer">
         <template v-if="dialogReadonly">
           <el-button @click="closeLoadingDialog">关闭</el-button>
         </template>
@@ -1245,23 +1235,7 @@
           </el-button>
         </template>
       </div>
-      <template v-if="!isStandalonePage" #footer>
-        <div class="loading-manage-dialog__footer">
-          <template v-if="dialogReadonly">
-            <el-button @click="closeLoadingDialog">关闭</el-button>
-          </template>
-          <template v-else>
-            <el-button @click="clearLoadingDialog">清空</el-button>
-            <el-button type="primary" plain :loading="dialogSaving === 'draft'" @click="saveDraft">
-              暂存
-            </el-button>
-            <el-button type="primary" :loading="dialogSaving === 'submit'" @click="submitLoading">
-              {{ dialogMode === 'reassign' ? '确认派单' : '确认' }}
-            </el-button>
-          </template>
-        </div>
-      </template>
-    </component>
+    </div>
     <el-dialog
       v-model="routeChangeVisible"
       title="变更运输路线"
@@ -1636,7 +1610,6 @@ export default {
       searchExpanded: false,
       searchForm: createSearchForm(),
       selectionRows: [],
-      dialogVisible: false,
       dialogMode: 'add',
       dialogLoading: false,
       dialogSaving: '',
@@ -1706,15 +1679,6 @@ export default {
       if (!this.taskCarrierLoading && !this.taskCarrierOptions.length) return '暂无可用承运商合同';
       return '请选择';
     },
-    dialogTitle() {
-      const titleMap = {
-        add: '新建配载',
-        edit: '编辑配载单',
-        view: '配载单详情',
-        reassign: '重新派单',
-      };
-      return titleMap[this.dialogMode] || '配载管理';
-    },
     detailStatusType() {
       const typeMap = {
         pending: 'success',
@@ -1785,25 +1749,29 @@ export default {
     const detailId = this.$route.query.detailId;
     if (detailId) this.gotoLoadingDetail({ id: detailId });
   },
+  // 标签切走（实例被 keep-alive 缓存）或销毁时，先收起页内子弹窗
+  deactivated() {
+    this.closeInnerDialogs();
+  },
+  beforeUnmount() {
+    this.closeInnerDialogs();
+  },
   watch: {
     $route(to, from) {
-      if (this.isStandalonePage) {
-        this.syncStandaloneTagTitle();
-        if (this.isStandaloneDetailPage) {
-          // 记录变化或上一个页面不是详情态（例如从表单页/列表页进来）时重新拉取详情
-          const idChanged = String(to.query.id || '') !== String(from?.query?.id || '');
-          if (idChanged || this.dialogMode !== 'view') this.initStandaloneDetailPage();
-          return;
-        }
-        if (
-          to.query.mode !== from?.query?.mode ||
-          String(to.query.id || '') !== String(from?.query.id || '') ||
-          String(to.query.copyId || '') !== String(from?.query.copyId || '')
-        ) {
-          this.initStandaloneFormPage();
-        }
-      } else if (from?.query?.mode && this.dialogVisible) {
-        this.closeLoadingDialog();
+      if (!this.isStandalonePage) return;
+      this.syncStandaloneTagTitle();
+      if (this.isStandaloneDetailPage) {
+        // 记录变化或上一个页面不是详情态（例如从表单页/列表页进来）时重新拉取详情
+        const idChanged = String(to.query.id || '') !== String(from?.query?.id || '');
+        if (idChanged || this.dialogMode !== 'view') this.initStandaloneDetailPage();
+        return;
+      }
+      if (
+        to.query.mode !== from?.query?.mode ||
+        String(to.query.id || '') !== String(from?.query.id || '') ||
+        String(to.query.copyId || '') !== String(from?.query.copyId || '')
+      ) {
+        this.initStandaloneFormPage();
       }
     },
     '$route.query.detailId'(detailId) {
@@ -2302,7 +2270,6 @@ export default {
         return;
       }
       this.dialogMode = mode;
-      this.dialogVisible = true;
       this.dialogLoading = true;
       this.resetDialogData();
       if (mode === 'add') this.candidateQuery.transportType = 'road';
@@ -2335,17 +2302,9 @@ export default {
       }
     },
     closeLoadingDialog() {
-      if (this.isStandalonePage) {
-        this.$router.$avueRouter?.closeTag?.();
-        this.$router.push({ path: '/business/loading-manage', query: {} });
-        return;
-      }
-      this.dialogVisible = false;
-    },
-    resetLoadingDialog() {
-      this.resetDialogData();
-      this.dialogSaving = '';
-      this.dialogLoading = false;
+      if (!this.isStandalonePage) return;
+      this.$router.$avueRouter?.closeTag?.();
+      this.$router.push({ path: '/business/loading-manage', query: {} });
     },
     resetDialogData() {
       this.detailAmap?.destroy?.();
@@ -2367,10 +2326,11 @@ export default {
       this.processProjectId = '';
       this.processProjectOptions = [];
     },
-    clearLoadingDialog() {
-      this.resetDialogData();
-      if (this.dialogMode === 'add') this.candidateQuery.transportType = 'road';
-      this.loadCandidateWaybills();
+    // 离开本页（标签缓存/卸载）时收起页内子弹窗，避免 append-to-body 的弹窗 DOM 残留在 body 上
+    closeInnerDialogs() {
+      this.routeChangeVisible = false;
+      this.commonAddressVisible = false;
+      this.candidateSearchVisible = false;
     },
     restoreRouteAndCargo() {
       const routeRows = parseJsonArray(this.dialogForm.routeJson);