feat(签署): 保存并还原患者勾选结果

签署完成时将患者勾选的条目固化到任务记录，重新打开已签署文书时还原勾选状态，重新发起签署则清空历史勾选。

clinical-web/src/views/workbench/signing/index.vue

@@ -80,6 +80,8 @@ const page = ref(1)
 const pageSize = ref(20)
 const selectedTaskId = ref<string | null>(null)
 const selectedTask = ref<SigningTaskRecord | null>(null)
+/** 当前任务里患者已勾选的条目，签署完成时随签名一起固化到任务上 */
+const signingSelection = ref<string[]>([])
 const taskEvents = ref<SigningTaskEvent[]>([])
 const artifacts = ref<SigningArtifact[]>([])
 const templates = ref<SigningTemplate[]>([])
@@ -213,6 +215,9 @@ async function loadOrganizationOptions() {
 
 async function loadTaskDetail(id: string | null) {
   const requestId = ++detailRequestId
+  // 换任务时先清空勾选，避免把上一个任务的勾选带到新任务上；
+  // 文书组件挂载后会用任务自身的勾选重新上报
+  signingSelection.value = []
 
   if (!id) {
     selectedTask.value = null
@@ -339,6 +344,10 @@ function selectTask(id: string) {
   void loadTaskDetail(id)
 }
 
+function handleSelectionChange(items: string[]) {
+  signingSelection.value = items
+}
+
 function handlePageChange(nextPage: number) {
   const pageCount = Math.max(Math.ceil(total.value / pageSize.value), 1)
 
@@ -504,7 +513,10 @@ async function confirmPadSignature(signatureDataUrl: string) {
   }
 
   try {
-    await refreshTask(await completeSigningTask(task.id, signatureDataUrl), '手写签署已完成')
+    await refreshTask(
+      await completeSigningTask(task.id, signatureDataUrl, signingSelection.value),
+      '手写签署已完成',
+    )
     signatureDialogVisible.value = false
   } catch {
     ElMessage.error('手写签署失败，请稍后重试')
@@ -519,7 +531,10 @@ async function completeOnlineSignature(signatureDataUrl: string) {
   }
 
   try {
-    await refreshTask(await completeSigningTask(task.id, signatureDataUrl), '线上签署已完成')
+    await refreshTask(
+      await completeSigningTask(task.id, signatureDataUrl, signingSelection.value),
+      '线上签署已完成',
+    )
     onlineDialogVisible.value = false
   } catch {
     ElMessage.error('线上签署失败，请稍后重试')
@@ -639,6 +654,7 @@ onMounted(() => {
         :pad-session-loading="padSessionLoading"
         @action="handleTaskAction"
         @download-artifact="downloadArtifact"
+        @selection-change="handleSelectionChange"
       />
     </div>