feat(web): AI 工作台文件预览/附件关联任务与草稿分支

- 新增 WorkbenchAiFilePreviewDialog 附件预览对话框及 useWorkbenchAiFilePreview，附件支持点击预览
- 新增 attachmentAssociationJobs/linkedReimbursementDraftJobs 前端服务与对应 composable，接入后台任务轮询与状态展示
- 新增 travelReimbursementDraftBranchModel 草稿分支模型，报销关联门控支持跳过/选择草稿
- PersonalWorkbenchAiMode 及各 composable（expense/document/steward/application-preview/attachment-association）重构适配，WorkbenchAiComposer/FileStrip 样式与交互完善
- DocumentsCenter/ReceiptFolder/TravelReimbursementCreate 等视图及 scripts 重构，风险/差旅规划/审批等工具适配
- 新增/更新前端测试：application-result-card、reimbursement-list-preview-fetch、guided-flow、composer-components 等

web/src/composables/workbenchAiMode/workbenchAiMessageModel.js

@@ -151,6 +151,8 @@ export function createWorkbenchAiMessageRuntime() {
         : suggestedActions,
       applicationPreview: options.applicationPreview || null,
       draftPayload: options.draftPayload || null,
+      attachmentAssociationJob: normalizeInlineAttachmentAssociationJob(options.attachmentAssociationJob || null),
+      linkedReimbursementDraftJob: normalizeInlineLinkedReimbursementDraftJob(options.linkedReimbursementDraftJob || null),
       attachmentOcrDetails: normalizeInlineAttachmentOcrDetails(options.attachmentOcrDetails || null),
       text: options.text || normalizedContent,
       createdAt: options.createdAt || Date.now()
@@ -166,6 +168,8 @@ export function createWorkbenchAiMessageRuntime() {
       suggestedActions: Array.isArray(message.suggestedActions) ? message.suggestedActions : [],
       applicationPreview: message.applicationPreview || null,
       draftPayload: message.draftPayload || null,
+      attachmentAssociationJob: message.attachmentAssociationJob || null,
+      linkedReimbursementDraftJob: message.linkedReimbursementDraftJob || null,
       attachmentOcrDetails: message.attachmentOcrDetails || null,
       text: message.text || message.content || ''
     })
@@ -182,6 +186,8 @@ export function createWorkbenchAiMessageRuntime() {
       suggestedActions: Array.isArray(message.suggestedActions) ? message.suggestedActions : [],
       applicationPreview: message.applicationPreview || null,
       draftPayload: message.draftPayload || null,
+      attachmentAssociationJob: normalizeInlineAttachmentAssociationJob(message.attachmentAssociationJob || null),
+      linkedReimbursementDraftJob: normalizeInlineLinkedReimbursementDraftJob(message.linkedReimbursementDraftJob || null),
       attachmentOcrDetails: message.attachmentOcrDetails || null
     }
   }
@@ -193,3 +199,52 @@ export function createWorkbenchAiMessageRuntime() {
     serializeRuntimeMessage
   }
 }
+
+export function normalizeInlineAttachmentAssociationJob(job = null) {
+  if (!job || typeof job !== 'object') {
+    return null
+  }
+  const jobId = String(job.jobId || job.job_id || '').trim()
+  if (!jobId) {
+    return null
+  }
+  const status = String(job.status || 'queued').trim() || 'queued'
+  const receiptIds = (Array.isArray(job.receiptIds) ? job.receiptIds : job.receipt_ids || [])
+    .map((item) => String(item || '').trim())
+    .filter(Boolean)
+  return {
+    jobId,
+    status,
+    message: String(job.message || '').trim(),
+    receiptIds,
+    claimId: String(job.claimId || job.claim_id || '').trim(),
+    claimNo: String(job.claimNo || job.claim_no || '').trim(),
+    uploadedCount: Number(job.uploadedCount ?? job.uploaded_count ?? 0) || 0,
+    skippedCount: Number(job.skippedCount ?? job.skipped_count ?? 0) || 0,
+    error: String(job.error || '').trim()
+  }
+}
+
+export function normalizeInlineLinkedReimbursementDraftJob(job = null) {
+  if (!job || typeof job !== 'object') {
+    return null
+  }
+  const jobId = String(job.jobId || job.job_id || '').trim()
+  if (!jobId) {
+    return null
+  }
+  const draftPayload = job.draftPayload && typeof job.draftPayload === 'object'
+    ? job.draftPayload
+    : job.draft_payload && typeof job.draft_payload === 'object'
+      ? job.draft_payload
+      : null
+  return {
+    jobId,
+    status: String(job.status || 'queued').trim() || 'queued',
+    message: String(job.message || '').trim(),
+    error: String(job.error || '').trim(),
+    runId: String(job.runId || job.run_id || '').trim(),
+    applicationClaimNo: String(job.applicationClaimNo || job.application_claim_no || '').trim(),
+    draftPayload
+  }
+}