feat(web): 工作台 AI 模式与差旅/风险建议交互优化

- 新增 PersonalWorkbenchAiMode 组件、AI 侧边栏与 orb 机器人视觉资源
- 新增 aiApplicationDraftModel / aiExpenseDraftModel / aiWorkbenchConversationStore
  及业务准入 aiSidebarBusinessAccess，支撑 AI 模式下的申请与报销草稿
- 顶栏、侧边栏、工作台样式重构，适配 AI 模式切换与响应式布局
- 同步 steward plan/off_topic、差旅报销引导流、风险建议卡片等测试

web/tests/ai-expense-draft-model.test.mjs

@@ -0,0 +1,73 @@
+import assert from 'node:assert/strict'
+import test from 'node:test'
+
+import {
+  applyAiExpenseAnswer,
+  buildAiExpenseStepPrompt,
+  buildAiExpenseSummary,
+  createAiExpenseDraft,
+  getAiExpenseCurrentStep,
+  isAiExpenseDraftComplete
+} from '../src/utils/aiExpenseDraftModel.js'
+
+test('draft starts at the reason step regardless of expense type', () => {
+  const draft = createAiExpenseDraft('transport', '交通费')
+  assert.equal(draft.expenseType, 'transport')
+  assert.equal(draft.expenseTypeLabel, '交通费')
+  assert.equal(draft.stepKey, 'reason')
+  assert.equal(getAiExpenseCurrentStep(draft).key, 'reason')
+})
+
+test('answers advance through fields in order and reach the summary step', () => {
+  let draft = createAiExpenseDraft('office', '办公用品费')
+  draft = applyAiExpenseAnswer(draft, '项目现场临时采购', [])
+  assert.equal(draft.stepKey, 'time_range')
+  draft = applyAiExpenseAnswer(draft, '2026-06-15', [])
+  assert.equal(draft.stepKey, 'location')
+  draft = applyAiExpenseAnswer(draft, '京东', [])
+  assert.equal(draft.stepKey, 'amount')
+  draft = applyAiExpenseAnswer(draft, '320元', [])
+  assert.equal(draft.stepKey, 'attachments')
+  draft = applyAiExpenseAnswer(draft, '稍后上传', [])
+  assert.ok(isAiExpenseDraftComplete(draft))
+})
+
+test('attachments step collects uploaded file names', () => {
+  let draft = createAiExpenseDraft('office', '办公用品费')
+  draft = applyAiExpenseAnswer(draft, '事由', [])
+  draft = applyAiExpenseAnswer(draft, '2026-06-15', [])
+  draft = applyAiExpenseAnswer(draft, '京东', [])
+  draft = applyAiExpenseAnswer(draft, '320元', [])
+  draft = applyAiExpenseAnswer(draft, '', [{ name: '发票.pdf' }])
+  assert.deepEqual(draft.values.attachment_names, ['发票.pdf'])
+  assert.ok(isAiExpenseDraftComplete(draft))
+})
+
+test('step prompt names the type and the current field', () => {
+  const draft = createAiExpenseDraft('transport', '交通费')
+  const prompt = buildAiExpenseStepPrompt(draft)
+  assert.match(prompt, /交通费/)
+  assert.match(prompt, /事由/)
+})
+
+test('summary lists every filled field and the linked application', () => {
+  let draft = createAiExpenseDraft('transport', '交通费')
+  draft = {
+    ...draft,
+    applicationClaim: {
+      application_claim_no: 'AP-202606-001',
+      application_reason: '送客户去机场',
+      application_business_time: '2026-06-15',
+      application_location: '公司至机场'
+    }
+  }
+  draft = applyAiExpenseAnswer(draft, '送客户去机场', [])
+  draft = applyAiExpenseAnswer(draft, '2026-06-15', [])
+  draft = applyAiExpenseAnswer(draft, '公司至机场', [])
+  draft = applyAiExpenseAnswer(draft, '85元', [])
+  draft = applyAiExpenseAnswer(draft, '稍后上传', [])
+  const summary = buildAiExpenseSummary(draft)
+  assert.match(summary, /交通费/)
+  assert.match(summary, /AP-202606-001/)
+  assert.match(summary, /85元/)
+})