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/services/aiApplicationPreviewActions.js

@@ -72,6 +72,9 @@ export function buildAiApplicationPreviewActionPayload({
     : []
   const draftClaimId = normalizeText(draftPayload?.claim_id || draftPayload?.claimId)
   const isSubmit = actionType === AI_APPLICATION_ACTION_SUBMIT
+  const applicationEditableFields = Array.isArray(normalizedPreview.editableFields)
+    ? normalizedPreview.editableFields.map((field) => normalizeText(field)).filter(Boolean)
+    : []
 
   return {
     source: 'user_message',
@@ -107,6 +110,9 @@ export function buildAiApplicationPreviewActionPayload({
       application_stage: 'expense_application',
       user_input_text: message,
       application_preview: normalizedPreview,
+      ...(applicationEditableFields.length
+        ? { application_editable_fields: applicationEditableFields }
+        : {}),
       ...(isSubmit
         ? {}
         : {