feat(project-apply): 调整项目管理表单及搜索功能

- 项目编号放开编辑，新增时可输入，编辑时禁用
- 取消项目简称的必填校验，仅限制最大长度20
- 业务部门、项目由来说明表单项占满一行，优化布局
- 业务部门下拉增加过滤，重大项目补录模式不显示外部组织
- 新增变更编号及变更日期字段，关联变更类型显示
- 搜索栏将项目负责人由下拉切换为手动输入模糊查询
- 新增项目编号、客户名称、下游承运商三个搜索字段
- 清理无用的搜索工具函数和配置，优化代码结构

src/views/business/project-apply.vue

@@ -120,7 +120,12 @@
               />
             </el-select>
           </el-form-item>
-          <div v-if="isChangeDialog"></div>
+          <el-form-item v-if="isChangeDialog" label="变更编号" prop="changeNo">
+            <el-input v-model="form.changeNo" disabled placeholder="系统自动生成" />
+          </el-form-item>
+          <el-form-item v-if="isChangeDialog" label="变更日期" prop="changeDate">
+            <el-input v-model="form.changeDate" disabled placeholder="系统自动生成" />
+          </el-form-item>
           <el-form-item label="项目类型" prop="projectType">
             <el-select
               v-model="form.projectType"
@@ -138,7 +143,11 @@
             </el-select>
           </el-form-item>
           <el-form-item label="项目编号" prop="projectCode">
-            <el-input v-model="form.projectCode" disabled placeholder="系统自动生成" />
+            <el-input
+              v-model="form.projectCode"
+              placeholder="请输入项目编号，不填自动生成"
+              :disabled="dialogType === 'edit'"
+            />
           </el-form-item>
           <el-form-item label="项目名称" prop="projectName">
             <el-input
@@ -156,7 +165,7 @@
               :disabled="isBasicInfoReadonly"
             />
           </el-form-item>
-          <el-form-item label="业务部门" prop="businessDeptId">
+          <el-form-item label="业务部门" prop="businessDeptId" class="project-apply-form__item--full">
             <el-tree-select
               v-model="form.businessDeptId"
               :data="businessDeptTreeOptions"
@@ -201,7 +210,7 @@
               />
             </el-select>
           </el-form-item>
-          <el-form-item label="项目由来说明" prop="sourceRemark">
+          <el-form-item label="项目由来说明" prop="sourceRemark" class="project-apply-form__item--full">
             <el-input v-model="form.sourceRemark" maxlength="300" :disabled="isBasicInfoReadonly" />
           </el-form-item>
         </div>
@@ -790,6 +799,8 @@ const emptyForm = () => ({
   projectSource: '商务洽谈',
   sourceRemark: '',
   changeType: '',
+  changeNo: '',
+  changeDate: '',
   customerNames: '',
   carrierNames: '',
   fundLimit: '',
@@ -947,7 +958,6 @@ export default {
           { max: 50, message: '项目名称不能超过50个字符', trigger: 'blur' },
         ],
         projectShortName: [
-          { required: true, message: '请输入项目简称', trigger: 'blur' },
           { max: 20, message: '项目简称不能超过20个字符', trigger: 'blur' },
         ],
         businessDeptId: [{ required: true, message: '请选择业务部门', trigger: 'change' }],
@@ -1193,9 +1203,12 @@ export default {
       }
       this.api.getDetail(id).then(res => {
         const detail = res.data.data || {};
+        const isChange = type === 'change';
         this.applyProjectDetail({
           ...detail,
-          changeType: type === 'change' ? this.resolveChangeType(detail) : detail.changeType,
+          changeType: isChange ? this.resolveChangeType(detail) : detail.changeType,
+          changeNo: isChange ? this.generateChangeNo(detail) : '',
+          changeDate: isChange ? this.$dayjs().format('YYYY-MM-DD') : '',
         });
       });
     },
@@ -1786,6 +1799,10 @@ export default {
         },
       ];
     },
+    generateChangeNo(detail) {
+      const base = detail && detail.projectCode ? detail.projectCode : 'XM';
+      return `${base}-BG${this.$dayjs().format('YYYYMMDD')}`;
+    },
     handleBusinessDeptChange(value) {
       const dept = this.deptOptions.find(item => item.value === value);
       this.form.businessDeptName = dept ? dept.rawLabel : '';
@@ -1803,7 +1820,7 @@ export default {
     loadDeptOptions() {
       getDeptTree().then(res => {
         const deptTree = res.data.data || [];
-        const businessDeptTree = ['add', 'edit'].includes(this.dialogType)
+        const businessDeptTree = ['add', 'edit', 'majorSupplement'].includes(this.dialogType)
           ? this.excludeExternalOrganization(deptTree)
           : deptTree;
         const undertakeDeptTree =
@@ -2172,6 +2189,15 @@ export default {
       min-width: 0 !important;
       white-space: normal;
     }
+
+    // 占满整行的表单项（业务部门 / 项目由来说明）
+    :deep(.project-apply-form__item--full) {
+      grid-column: 1 / -1;
+
+      .el-form-item__content {
+        width: 100%;
+      }
+    }
   }
 
   &__picker-icon {