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/steward-field-completion-model.test.mjs

@@ -0,0 +1,90 @@
+import assert from 'node:assert/strict'
+import test from 'node:test'
+
+import {
+  buildStewardFieldCompletionContinuation,
+  buildStewardFieldCompletionRawText,
+  resolveStewardRuntimeFieldCompletion
+} from '../src/views/scripts/stewardFieldCompletionModel.js'
+
+test('steward field completion maps ontology travel type and anchors reason update', () => {
+  const continuation = buildStewardFieldCompletionContinuation(
+    {
+      currentTask: {
+        summary: '2月20-23日上海出差',
+        ontology_fields: {
+          expense_type: 'travel',
+          time_range: '2026-02-20 至 2026-02-23',
+          location: '上海市'
+        },
+        missing_fields: ['reason']
+      }
+    },
+    'reason',
+    '辅助国网仿生产服务器部署'
+  )
+
+  const rawText = buildStewardFieldCompletionRawText({
+    preview: {
+      fields: {
+        applicationType: '',
+        time: '2026-02-20 至 2026-02-23',
+        location: '上海市',
+        reason: '',
+        days: '4天',
+        transportMode: '火车'
+      }
+    },
+    fieldKey: 'reason',
+    fieldLabel: '事由',
+    value: '辅助国网仿生产服务器部署',
+    continuation
+  })
+
+  assert.equal(continuation.currentTask.ontology_fields.reason, '辅助国网仿生产服务器部署')
+  assert.deepEqual(continuation.currentTask.missing_fields, [])
+  assert.match(rawText, /申请类型：差旅费用申请/)
+  assert.doesNotMatch(rawText, /申请类型：travel/)
+  assert.match(rawText, /用户已补充：事由：辅助国网仿生产服务器部署。/)
+  assert.match(rawText, /当前申请单字段的补充\/更新/)
+  assert.match(rawText, /不是新建申请或切换任务/)
+  assert.match(rawText, /不要把它改判为新的 IT 部署申请/)
+})
+
+test('steward runtime treats bare reason reply as current application field completion', () => {
+  const decision = resolveStewardRuntimeFieldCompletion(
+    '辅助国网仿生产服务器部署',
+    {
+      waiting_for: 'application_field_completion',
+      pending_application: {
+        message_id: 'application-preview-1',
+        ready_to_submit: false,
+        missing_fields: ['事由']
+      }
+    }
+  )
+
+  assert.deepEqual(decision, {
+    next_action: 'fill_current_application_field',
+    target_message_id: 'application-preview-1',
+    field_key: 'reason',
+    field_label: '事由',
+    field_value: '辅助国网仿生产服务器部署'
+  })
+})
+
+test('steward runtime keeps multi-field free text ambiguous for normal decision flow', () => {
+  assert.equal(
+    resolveStewardRuntimeFieldCompletion(
+      '辅助国网仿生产服务器部署',
+      {
+        waiting_for: 'application_field_completion',
+        pending_application: {
+          message_id: 'application-preview-1',
+          missing_fields: ['地点', '事由']
+        }
+      }
+    ),
+    null
+  )
+})