feat(M08-B): 补联调归档包导出

admin/src/components/CleaningFieldHandoffPanel.vue

@@ -56,6 +56,7 @@
         <el-button :icon="FileDown" :disabled="riskItems.length === 0" @click="exportRiskRegister">风险</el-button>
         <el-button :icon="Copy" @click="copyHandoffReport">复制报告</el-button>
         <el-button :icon="FileDown" @click="exportHandoffReport">报告</el-button>
+        <el-button :icon="FileDown" :disabled="!closeoutReady" @click="exportCloseoutArchive">归档包</el-button>
         <el-button :icon="RotateCcw" @click="resetDraft">重置</el-button>
         <input
           ref="snapshotInput"
@@ -597,6 +598,56 @@ function exportHandoffReport() {
   );
 }
 
+function exportCloseoutArchive() {
+  downloadText(
+    `cleaning-field-closeout-archive-${Date.now()}.json`,
+    JSON.stringify(buildCloseoutArchive(), null, 2),
+    'application/json;charset=utf-8'
+  );
+}
+
+function buildCloseoutArchive() {
+  return {
+    schema: 'qipai.cleaning.field-handoff.closeout-archive.v1',
+    exportedAt: new Date().toISOString(),
+    sessionMeta: { ...sessionMeta },
+    closeoutGate: {
+      ready: closeoutReady.value,
+      missingFields: [...missingCloseoutFields.value],
+      handoffReady: handoffReady.value
+    },
+    summary: {
+      total: checklist.length,
+      passed: passedCount.value,
+      blocked: blockedCount.value,
+      pending: pendingCount.value,
+      evidenceRecorded: evidenceRecordedCount.value,
+      evidenceMissing: evidenceMissingCount.value
+    },
+    categoryProgress: categoryProgress.value,
+    riskItems: riskItems.value.map((item) => serializeHandoffItem(item)),
+    evidenceMissingItems: evidenceMissingItems.value.map((item) => serializeHandoffItem(item)),
+    checklist: checklist.map((item) => serializeHandoffItem(item)),
+    report: buildHandoffReport()
+  };
+}
+
+function serializeHandoffItem(item: HandoffItem) {
+  const itemDraft = draft[item.id];
+  return {
+    id: item.id,
+    category: item.category,
+    title: item.title,
+    expected: item.expected,
+    status: itemDraft.status,
+    statusText: statusText(itemDraft.status),
+    owner: itemDraft.owner,
+    note: itemDraft.note,
+    evidence: item.evidence,
+    evidenceRef: itemDraft.evidenceRef
+  };
+}
+
 function buildHandoffReport() {
   const header = [
     '# 保洁现场联调交接报告',