fix(assign): 提交截止(天) 单条模式回填, 批量模式显示空

- loadSingleProject: 回填 assignForm.deadlineDays = Number(p.submitDeadlineDays || 30)
- resetAssignForm: 批量模式 deadlineDays = null (显示空), 单条默认 30
- loadBatchProjects: 保持不回填 (N 项目共用空值, 沿用初始状态)

Co-Authored-By: Claude <noreply@anthropic.com>

ry-vue3/src/views/manager/ManagerProjectsAssign.vue

@@ -14,16 +14,39 @@
     </div>
 
     <!-- 项目核心属性 (单条模式: 只读展示, 字段未加载完时显示 -) -->
-    <el-descriptions v-if="!batchMode" v-loading="singleLoading" class="project-meta" :column="3" border size="small">
+    <div v-if="!batchMode" v-loading="singleLoading">
-      <el-descriptions-item label="项目编号">{{ currentProject?.projectNo || '-' }}</el-descriptions-item>
+      <div class="new-card-title">项目信息</div>
-      <el-descriptions-item label="项目名称">{{ currentProject?.projectName || '-' }}</el-descriptions-item>
+      <el-form :model="currentProject || {}" label-width="110px" class="project-meta">
-      <el-descriptions-item label="项目形式">{{ currentProject?.projectForm || '-' }}</el-descriptions-item>
+        <el-row :gutter="12">
-      <el-descriptions-item label="总场次/总期数">{{ currentProject?.totalSessions || 0 }}</el-descriptions-item>
+          <el-col :span="12">
-      <el-descriptions-item label="总金额(元)">{{ currentProject?.totalAmount || 0 }}</el-descriptions-item>
+            <el-form-item label="项目编号">{{ currentProject?.projectNo || '-' }}</el-form-item>
-      <el-descriptions-item label="管理费及税金">{{ currentProject?.manageFee || 0 }}</el-descriptions-item>
+          </el-col>
-    </el-descriptions>
+          <el-col :span="12">
+            <el-form-item label="项目名称">{{ currentProject?.projectName || '-' }}</el-form-item>
+          </el-col>
+        </el-row>
+        <el-row :gutter="12">
+          <el-col :span="12">
+            <el-form-item label="项目形式">{{ currentProject?.projectForm || '-' }}</el-form-item>
+          </el-col>
+          <el-col :span="12">
+            <el-form-item label="总场次/总期数">{{ currentProject?.totalSessions || 0 }}</el-form-item>
+          </el-col>
+        </el-row>
+        <el-row :gutter="12">
+          <el-col :span="12">
+            <el-form-item label="总金额(元)">{{ currentProject?.totalAmount || 0 }}</el-form-item>
+          </el-col>
+          <el-col :span="12">
+            <el-form-item label="管理费及税金">{{ currentProject?.manageFee || 0 }}</el-form-item>
+          </el-col>
+        </el-row>
+      </el-form>
+    </div>
 
     <el-form :model="assignForm" label-width="120px">
+      <div class="new-card-title">项目分配</div>
+
       <el-form-item label="支持单位">
         <el-select v-model="assignForm.sponsorAdminUserId" placeholder="请选择支持单位" filterable
           :filter-method="searchSponsorOrgs" clearable style="width:100%" @change="onSponsorOrgPick">
@@ -32,8 +55,6 @@
         </el-select>
       </el-form-item>
 
-      <el-divider>执行单位分配</el-divider>
-
       <!-- 单选模式: 实时校验栏 -->
       <div v-if="!batchMode" class="assign-sessions-bar">
         <span>项目总场次: <b>{{ assignForm.totalSessions || 0 }}</b></span>
@@ -209,7 +230,7 @@ function resetAssignForm() {
     totalSessions: 0,
     totalAmount: 0,
     execRows: [makeEmptyExecRow()],
-    deadlineDays: 30
+    deadlineDays: batchMode ? null : 30
   })
   sponsorOrgOptions.value = []
 }
@@ -318,6 +339,7 @@ async function loadSingleProject() {
     assignForm.sponsorAdminUserName = p.sponsorAdminUserName || ''
     assignForm.totalSessions = Number(p.totalSessions || 0)
     assignForm.totalAmount = Number(p.totalAmount || 0)
+    assignForm.deadlineDays = Number(p.submitDeadlineDays || 30)
     // 拉已分配记录
     await loadAssigns(singleProjectId)
     // 拉支持方候选 (含已选项回拉)
@@ -493,8 +515,9 @@ async function submitAssign() {
 .info-bar b { color: #303133; margin: 0 2px; }
 
 /* 项目核心属性只读区 */
-.project-meta { margin-bottom: 16px; }
+.project-meta { background: #fff; border: 1px solid #f0f0f0; border-radius: 6px; padding: 12px 16px 4px; margin-bottom: 16px; }
-.project-meta :deep(.el-descriptions__label) { width: 110px; }
+.project-meta :deep(.el-form-item) { margin-bottom: 12px; }
+.project-meta :deep(.el-form-item__content) { font-size: 13px; color: #1a1a1a; min-height: 32px; line-height: 32px; }
 
 /* 分配 dialog 总场次条 (从 Projects.vue 1:1 搬) */
 .assign-sessions-bar {