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/project-apply.vue

@@ -140,14 +140,15 @@
       @load="onLoad(page, query)"
     />
 
-    <component
-      :is="projectFormContainer"
-      v-if="projectBox"
-      v-bind="projectFormContainerProps"
-      @update:model-value="projectBox = $event"
-      @closed="resetProjectDialog"
-    >
-      <div v-if="isProjectFormPage" class="archive-page-form__title">
+    <!--
+      项目新增/编辑/查看/变更/补录全部是独立整页（openProjectDialog 一律 push /business/project-apply/form），
+      这里固定渲染普通容器，不再按 $route 在 div 与 el-dialog 之间切换。
+      原因：标签页 keep-alive 会缓存本页实例，若容器在离开本页后又变回 el-dialog，
+      缓存实例会把 append-to-body 的弹窗渲染进 body 并永久停留（Vue 的 KeepAlive.deactivate →
+      Teleport.move 不会搬走 append-to-body 的弹窗 DOM），表现为“点左侧菜单又弹出新增项目管理弹窗”。
+    -->
+    <div v-if="isProjectFormPage" class="project-apply-page-form">
+      <div class="archive-page-form__title">
         {{ projectDialogTitle }}
       </div>
       <el-form
@@ -788,8 +789,7 @@
         :class="{ 'project-apply-dialog__footer--change': isChangeDialog }"
       >
           <template v-if="isChangeDialog">
-            <el-button v-if="!isProjectFormPage" @click="handleCancelProject">取消</el-button>
-            <el-button v-if="isProjectFormPage" @click="closeProjectForm">取消</el-button>
+            <el-button @click="closeProjectForm">取消</el-button>
             <el-button type="primary" plain :loading="submitLoading" @click="saveChangeProject">
               保存
             </el-button>
@@ -798,8 +798,7 @@
             </el-button>
           </template>
           <template v-else>
-            <el-button v-if="!isProjectFormPage" @click="handleCancelProject">取消</el-button>
-            <el-button v-if="isProjectFormPage" @click="closeProjectForm">取消</el-button>
+            <el-button @click="closeProjectForm">取消</el-button>
             <el-button
               v-if="!dialogReadonly"
               type="primary"
@@ -819,7 +818,7 @@
             </el-button>
           </template>
       </div>
-    </component>
+    </div>
 
     <el-dialog
       v-model="attachmentDocumentPreviewVisible"
@@ -1116,7 +1115,6 @@ export default {
         total: 0,
       },
       selectionList: [],
-      projectBox: false,
       dialogType: 'add',
       dialogReadonly: false,
       submitLoading: false,
@@ -1310,21 +1308,6 @@ export default {
     isProjectFormPage() {
       return this.$route.path === '/business/project-apply/form';
     },
-    projectFormContainer() {
-      return this.isProjectFormPage ? 'div' : 'el-dialog';
-    },
-    projectFormContainerProps() {
-      if (this.isProjectFormPage) return { class: 'project-apply-page-form' };
-      return {
-        modelValue: this.projectBox,
-        title: this.projectDialogTitle,
-        appendToBody: true,
-        destroyOnClose: true,
-        width: '1440px',
-        top: '4vh',
-        class: 'project-apply-dialog',
-      };
-    },
     isBasicInfoReadonly() {
       return this.dialogReadonly || this.isChangeDialog;
     },
@@ -1363,6 +1346,12 @@ export default {
       this.openProjectFormPage();
     }
   },
+  deactivated() {
+    this.closeInnerDialogs();
+  },
+  beforeUnmount() {
+    this.closeInnerDialogs();
+  },
   methods: {
     buildTableOption() {
       return {
@@ -1390,7 +1379,6 @@ export default {
       const id = this.$route.query.id;
       this.dialogType = type;
       this.dialogReadonly = type === 'view';
-      this.projectBox = true;
       if (['add', 'majorSupplement'].includes(type)) {
         this.applyProjectDetail({
           ...emptyForm(),
@@ -1411,11 +1399,15 @@ export default {
       });
     },
     closeProjectForm() {
-      if (this.isProjectFormPage) {
-        this.$router.push('/business/project-apply');
-      } else {
-        this.projectBox = false;
-      }
+      this.$router.push('/business/project-apply');
+    },
+    // 页面被 keep-alive 缓存/卸载时，关闭本页所有 append-to-body 的二级弹窗。
+    // 若不关闭，Teleport 出去的弹窗 DOM 在实例失活时不会被搬离 body，会残留盖在后续页面上。
+    closeInnerDialogs() {
+      this.changeRecordDetailVisible = false;
+      this.attachmentDocumentPreviewVisible = false;
+      this.attachmentImagePreviewVisible = false;
+      this.userBox = false;
     },
     statusValue(row) {
       return row[this.config.statusProp || 'status'];
@@ -1634,17 +1626,6 @@ export default {
       else if (type === 'change') query.name = '项目变更';
       this.$router.push({ path: '/business/project-apply/form', query });
     },
-    resetProjectDialog() {
-      this.$refs.projectForm?.clearValidate();
-      this.form = emptyForm();
-      this.customerRows = [];
-      this.carrierRows = [];
-      this.attachmentRows = [];
-      this.selectedAttachmentRows = [];
-      this.changeRows = [];
-      this.selectedCustomerId = [];
-      this.selectedCarrierIds = [];
-    },
     applyProjectDetail(row) {
       const displayRow = {
         ...row,
@@ -1767,23 +1748,6 @@ export default {
           this.submitLoading = false;
         });
     },
-    handleCancelProject() {
-      if (this.isProjectFormPage) {
-        this.closeProjectForm();
-        return;
-      }
-      if (!['add', 'majorSupplement', 'change'].includes(this.dialogType)) {
-        this.closeProjectForm();
-        return;
-      }
-      this.$confirm('确认后直接关闭弹窗，列表无数据变更，是否继续？', '提示', {
-        confirmButtonText: '确定',
-        cancelButtonText: '取消',
-        type: 'warning',
-      }).then(() => {
-        this.closeProjectForm();
-      });
-    },
     saveChangeProject() {
       this.submitChangeForm(false);
     },