feat(web): AI 工作台多 task 串行推进与会话适配

- useWorkbenchAiApplicationPreviewFlow/useWorkbenchAiActionRouter/useWorkbenchAiCommandIntents 支持 task1 完成后自动推进 task2，确认按钮直接拉起申请预览，草稿/提交成功后继续推进下一 task
- workbenchAiIntentPlannerModel/workbenchAiMessageModel/workbenchAiCommandIntentModel 适配多 task 意图规划与消息结构
- aiApplicationPreviewActions/aiApplicationPrecheckModel/aiExpenseDraftModel/aiWorkbenchConversationStore 草稿与会话存储适配
- PersonalWorkbenchAiMode 与样式适配，更新 preview-actions/expense-draft/conversation-store/fast-preview/action-router/command-intent/intent-planner 测试

web/src/composables/workbenchAiMode/workbenchAiCommandIntentModel.js

@@ -1,3 +1,7 @@
+import {
+  parseAiDocumentDetailHref
+} from '../../utils/aiDocumentDetailReference.js'
+
 const DRAFT_DELETION_ACTION_PATTERN = /删除|删掉|删了|移除|作废|撤销/
 const DRAFT_DELETION_TARGET_PATTERN = (
   /草稿|这个单据|这张单据|当前单据|当前申请|当前报销|刚才保存的草稿|刚才的草稿|上面的单据|最近的单据|申请单|报销单/
@@ -22,11 +26,26 @@ const SUBMITTED_OR_FINAL_STATUS = new Set([
   '已驳回',
   '已退回'
 ])
+const DOCUMENT_DETAIL_LINK_RE = /<a\b[^>]*href="([^"]*#ai-open-document-detail:[^"]+)"[^>]*>(.*?)<\/a>/g
+const DOCUMENT_COMMAND_ACTION_LABELS = {
+  delete: '删除',
+  approve: '审核通过',
+  reject: '驳回/退回'
+}
+const DOCUMENT_COMMAND_DETAIL_LABELS = {
+  delete: '进入详情确认删除',
+  approve: '进入详情确认审核',
+  reject: '进入详情确认驳回'
+}
 
 function normalizeCompactText(value = '') {
   return String(value || '').replace(/\s+/g, '').trim()
 }
 
+function normalizeText(value = '') {
+  return String(value || '').replace(/\s+/g, ' ').trim()
+}
+
 function normalizeDraftDocumentType(payload = {}, claimNo = '') {
   const rawType = String(payload.document_type || payload.documentType || payload.draft_type || payload.draftType || '').trim()
   if (/application|expense_application|申请/.test(rawType)) {
@@ -77,6 +96,60 @@ function extractDraftPayloadFromSuggestedActions(message = {}) {
   return null
 }
 
+function stripHtml(value = '') {
+  return normalizeText(String(value || '').replace(/<[^>]*>/g, ''))
+}
+
+function normalizeDocumentCommandCandidate(detailReference = null, rawLabel = '') {
+  if (!detailReference || typeof detailReference !== 'object') {
+    return null
+  }
+  const claimId = String(detailReference.claimId || detailReference.claim_id || '').trim()
+  const claimNo = String(detailReference.claimNo || detailReference.claim_no || detailReference.reference || '').trim()
+  if (!claimId && !claimNo) {
+    return null
+  }
+  return {
+    claimId,
+    claimNo,
+    documentType: normalizeDraftDocumentType(detailReference, claimNo),
+    actionLabel: stripHtml(rawLabel) || '查看详情'
+  }
+}
+
+function extractDocumentCommandCandidatesFromContent(content = '') {
+  const text = String(content || '')
+  const candidates = []
+  const seen = new Set()
+  for (const match of text.matchAll(DOCUMENT_DETAIL_LINK_RE)) {
+    const candidate = normalizeDocumentCommandCandidate(
+      parseAiDocumentDetailHref(match[1]),
+      match[2]
+    )
+    if (!candidate) {
+      continue
+    }
+    const key = `${candidate.claimId || ''}:${candidate.claimNo || ''}`
+    if (seen.has(key)) {
+      continue
+    }
+    seen.add(key)
+    candidates.push(candidate)
+  }
+  return candidates
+}
+
+function canReuseDocumentCommandContext(content = '', commandFrame = {}) {
+  const action = String(commandFrame?.action || '').trim()
+  if (!['approve', 'reject'].includes(action)) {
+    return false
+  }
+  if (String(commandFrame?.safetyLevel || '').trim() !== 'confirm_required') {
+    return false
+  }
+  return /ai-document-card--approval-task|待我审核|待审|待审批|待审核|确认审核|进入详情确认审核/.test(String(content || ''))
+}
+
 export function isWorkbenchDraftDeletionIntent(prompt = '') {
   const compact = normalizeCompactText(prompt)
   if (!compact || !DRAFT_DELETION_ACTION_PATTERN.test(compact)) {
@@ -104,6 +177,29 @@ export function resolveLatestWorkbenchDraftPayload(messages = []) {
   return null
 }
 
+export function resolveLatestWorkbenchDocumentCommandContext(messages = [], commandFrame = {}) {
+  const safeMessages = Array.isArray(messages) ? messages : []
+  for (const message of [...safeMessages].reverse()) {
+    if (String(message?.role || '').trim() !== 'assistant') {
+      continue
+    }
+    const content = String(message?.content || message?.text || '')
+    if (!canReuseDocumentCommandContext(content, commandFrame)) {
+      continue
+    }
+    const candidates = extractDocumentCommandCandidatesFromContent(content)
+    if (!candidates.length) {
+      continue
+    }
+    return {
+      sourceMessageId: String(message?.id || '').trim(),
+      action: String(commandFrame?.action || '').trim(),
+      candidates
+    }
+  }
+  return null
+}
+
 export function buildWorkbenchDraftDeletionGuidance(draftPayload = {}) {
   const claimNo = String(draftPayload.claimNo || draftPayload.claim_no || '').trim()
   const claimId = String(draftPayload.claimId || draftPayload.claim_id || '').trim()
@@ -128,3 +224,42 @@ export function buildWorkbenchDraftDeletionGuidance(draftPayload = {}) {
     }]
   }
 }
+
+export function buildWorkbenchDocumentCommandFollowupGuidance(context = {}, commandFrame = {}) {
+  const action = String(commandFrame?.action || context?.action || '').trim()
+  const actionLabel = DOCUMENT_COMMAND_ACTION_LABELS[action] || '处理'
+  const detailLabel = DOCUMENT_COMMAND_DETAIL_LABELS[action] || '进入详情确认'
+  const candidates = Array.isArray(context?.candidates) ? context.candidates : []
+  const visibleCandidates = candidates.slice(0, 8)
+  const candidateLines = visibleCandidates.map((candidate, index) => {
+    const reference = candidate.claimNo || candidate.claimId || `候选 ${index + 1}`
+    return `${index + 1}. ${reference}`
+  })
+  const overflowText = candidates.length > visibleCandidates.length
+    ? `\n\n还有 ${candidates.length - visibleCandidates.length} 张候选未展示，请先补充更具体条件。`
+    : ''
+  return {
+    content: [
+      '### 已接上刚才查询到的待审单据',
+      `您想继续执行 **${actionLabel}**。这属于高风险审批动作，我不会直接替您通过或驳回。`,
+      '请先从刚才的候选单据中选择一张，进入详情页核对风险、金额和审批节点后再确认。',
+      candidateLines.length ? candidateLines.join('\n') : '',
+      overflowText
+    ].filter(Boolean).join('\n\n'),
+    suggestedActions: visibleCandidates.map((candidate) => {
+      const reference = candidate.claimNo || candidate.claimId || '单据'
+      return {
+        label: `${detailLabel} ${reference}`,
+        description: '打开详情页核对后，再完成审批确认。',
+        icon: 'mdi mdi-open-in-new',
+        action_type: 'open_application_detail',
+        payload: {
+          claim_id: candidate.claimId,
+          claim_no: candidate.claimNo,
+          document_type: candidate.documentType,
+          command_action: action
+        }
+      }
+    })
+  }
+}