fix(xispeak): 修复发起落实措施收集流程第二个弹窗样式错乱

将 SzUserSelectByDeptRoleSecurityModal 移出 a-form-item 避免干扰表单布局，
并在关闭第一个弹窗后通过 nextTick 延迟打开第二个弹窗，避免模态框叠加冲突。

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/components/semri/process/FlowScheduleStartModal.vue

@@ -49,14 +49,6 @@
               <SearchOutlined @click="openSdwLeaderModal" />
             </template>
           </a-input>
-          <SzUserSelectByDeptRoleSecurityModal
-            v-model:open="sdwLeaderModalOpen"
-            title="请选择所党委领导"
-            :deptId="sdwLeaderDeptId"
-            :roleId="sdwLeaderRoleId"
-            :securityValue="sdwLeaderSecurityValue"
-            @confirm="handleSdwLeaderConfirm"
-          />
         </a-form-item>
       </template>
 
@@ -86,6 +78,15 @@
       </template>
     </a-form>
 
+    <SzUserSelectByDeptRoleSecurityModal
+      v-model:open="sdwLeaderModalOpen"
+      title="请选择所党委领导"
+      :deptId="sdwLeaderDeptId"
+      :roleId="sdwLeaderRoleId"
+      :securityValue="sdwLeaderSecurityValue"
+      @confirm="handleSdwLeaderConfirm"
+    />
+
     <template #footer>
       <a-button @click="handleCancel">取消</a-button>
       <a-button type="primary" @click="handleOk">提交</a-button>