feat(web): AI 工作台命令意图解析与动作策略

- 新增 workbenchIntentFrameModel，解析删除/审批/查询/咨询政策等意图帧，含风险等级、目标模式（当前上下文/筛选候选）与日期归一化
- 新增 workbenchIntentActionPolicy，按意图帧路由下一步（直通/拦截批量/上下文确认/查询候选）
- 新增 workbenchAiCommandIntentModel 与 useWorkbenchAiCommandIntents，识别草稿删除意图并解析最近草稿载荷生成引导
- usePersonalWorkbenchAiMode 接入命令意图处理，personal-workbench-ai-mode.css 适配
- 新增 command-intent-model/intent-frame-model 测试

web/tests/workbench-ai-command-intent-model.test.mjs

@@ -0,0 +1,104 @@
+import assert from 'node:assert/strict'
+import { readFileSync } from 'node:fs'
+import test from 'node:test'
+import { fileURLToPath } from 'node:url'
+
+import {
+  buildWorkbenchDraftDeletionGuidance,
+  isWorkbenchDraftDeletionIntent,
+  resolveLatestWorkbenchDraftPayload
+} from '../src/composables/workbenchAiMode/workbenchAiCommandIntentModel.js'
+
+const personalWorkbenchAiModeScript = readFileSync(
+  fileURLToPath(new URL('../src/composables/workbenchAiMode/usePersonalWorkbenchAiMode.js', import.meta.url)),
+  'utf8'
+)
+const commandIntentsScript = readFileSync(
+  fileURLToPath(new URL('../src/composables/workbenchAiMode/useWorkbenchAiCommandIntents.js', import.meta.url)),
+  'utf8'
+)
+
+test('workbench command intent detects draft deletion phrases without broad delete matching', () => {
+  assert.equal(isWorkbenchDraftDeletionIntent('删除草稿'), true)
+  assert.equal(isWorkbenchDraftDeletionIntent('把刚才保存的草稿删掉'), true)
+  assert.equal(isWorkbenchDraftDeletionIntent('删除这个申请单'), true)
+  assert.equal(isWorkbenchDraftDeletionIntent('删除附件'), false)
+  assert.equal(isWorkbenchDraftDeletionIntent('草稿还要补什么'), false)
+})
+
+test('workbench command intent resolves latest draft payload from conversation context', () => {
+  const payload = resolveLatestWorkbenchDraftPayload([
+    {
+      role: 'assistant',
+      draftPayload: {
+        claim_id: 'old-draft',
+        claim_no: 'AOLD001',
+        status: 'draft'
+      }
+    },
+    {
+      role: 'assistant',
+      suggestedActions: [{
+        action_type: 'open_application_detail',
+        payload: {
+          claim_id: 'latest-draft',
+          claim_no: 'ALATEST1',
+          status: 'draft'
+        }
+      }]
+    }
+  ])
+
+  assert.deepEqual(payload, {
+    claimId: 'latest-draft',
+    claimNo: 'ALATEST1',
+    status: 'draft',
+    documentType: 'application'
+  })
+})
+
+test('workbench command intent skips submitted documents when deleting draft', () => {
+  const payload = resolveLatestWorkbenchDraftPayload([
+    {
+      role: 'assistant',
+      draftPayload: {
+        claim_id: 'submitted-application',
+        claim_no: 'ASUBMIT1',
+        status: 'submitted'
+      }
+    }
+  ])
+
+  assert.equal(payload, null)
+})
+
+test('workbench draft deletion guidance opens detail instead of deleting directly', () => {
+  const guidance = buildWorkbenchDraftDeletionGuidance({
+    claimId: 'latest-draft',
+    claimNo: 'ALATEST1',
+    documentType: 'application'
+  })
+
+  assert.match(guidance.content, /已识别到您想删除草稿/)
+  assert.match(guidance.content, /不会直接替您删除/)
+  assert.equal(guidance.suggestedActions.length, 1)
+  assert.equal(guidance.suggestedActions[0].action_type, 'open_application_detail')
+  assert.equal(guidance.suggestedActions[0].payload.claim_id, 'latest-draft')
+  assert.equal(guidance.suggestedActions[0].payload.claim_no, 'ALATEST1')
+})
+
+test('workbench draft deletion intent is wired before draft slot continuation', () => {
+  assert.match(commandIntentsScript, /isWorkbenchDraftDeletionIntent/)
+  assert.match(commandIntentsScript, /function handleInlineDraftDeletionIntent\(cleanPrompt, entry = \{\}\)/)
+  assert.match(commandIntentsScript, /resolveLatestWorkbenchDraftPayload\(conversationMessages\.value\)/)
+  assert.match(commandIntentsScript, /buildWorkbenchDraftDeletionGuidance\(draftPayload\)/)
+  assert.match(personalWorkbenchAiModeScript, /useWorkbenchAiCommandIntents/)
+
+  const startIndex = personalWorkbenchAiModeScript.indexOf('function startInlineConversation')
+  const startBlock = personalWorkbenchAiModeScript.slice(startIndex)
+  const deleteIntentIndex = startBlock.indexOf('if (commandIntents.handleInlineDraftDeletionIntent(cleanPrompt, entry))')
+  const draftContinuationIndex = startBlock.indexOf('if (aiExpenseDraft.value && !isAiExpenseDraftComplete(aiExpenseDraft.value))')
+
+  assert.ok(deleteIntentIndex >= 0)
+  assert.ok(draftContinuationIndex > deleteIntentIndex)
+})