feat: 新增风险规则生成引擎与知识图谱可视化

后端新增风险规则自动生成和模板执行服务，支持从规则资产
批量生成并持久化风险规则文件；知识库入库日志增强图谱
查询和本地 RAG 回退，前端审计页面增加风险规则模型和流
程图组件，知识入库面板拆分为图谱可视化子组件，报销创
建页面增加引导式流程模型，更新知识库索引数据。

web/src/views/scripts/AuditView.js

@@ -2,6 +2,7 @@ import { computed, nextTick, onBeforeUnmount, onMounted, ref, watch } from 'vue'
 
 import ConfirmDialog from '../../components/shared/ConfirmDialog.vue'
 import { fetchEmployees } from '../../services/employees.js'
+import RiskRuleFlowDiagram from '../../components/shared/RiskRuleFlowDiagram.vue'
 import TableLoadingState from '../../components/shared/TableLoadingState.vue'
 import TableEmptyState from '../../components/shared/TableEmptyState.vue'
 import { useSystemState } from '../../composables/useSystemState.js'
@@ -18,6 +19,7 @@ import {
   fetchAgentAssetRuleJson,
   fetchAgentAssetVersionTimeline,
   fetchAgentRuns,
+  generateRiskRuleAsset,
   saveAgentAssetRuleJson,
   importAgentAssetSpreadsheetContent,
   restoreAgentAssetVersion,
@@ -58,11 +60,17 @@ import {
   parseRuntimeRuleText,
   buildMarkdownVersionContent
 } from './auditViewModel.js'
+import {
+  createDefaultRiskRuleForm,
+  RISK_RULE_CREATE_DOMAIN_OPTIONS,
+  RISK_RULE_LEVEL_OPTIONS
+} from './auditViewRiskRuleModel.js'
 
 export default {
   name: 'AuditView',
   components: {
     ConfirmDialog,
+    RiskRuleFlowDiagram,
     TableLoadingState,
     TableEmptyState
   },
@@ -95,6 +103,8 @@ export default {
     const reviewSubmitReviewer = ref('')
     const reviewSubmitReviewerLoading = ref(false)
     const reviewSubmitReviewerOptions = ref([])
+    const riskRuleCreateOpen = ref(false)
+    const riskRuleCreateForm = ref(createDefaultRiskRuleForm())
     const runLoading = ref(false)
     const runs = ref([])
     const spreadsheetUploadInput = ref(null)
@@ -152,6 +162,10 @@ export default {
         !selectedSkill.value?.isPreviewMock &&
         (isAdmin.value || isFinance.value)
     )
+    const canCreateRiskRule = computed(
+      () => activeType.value === 'riskRules' && (isAdmin.value || isFinance.value) && !detailBusy.value
+    )
+    const riskRuleCreateBusy = computed(() => actionState.value === 'generate-risk-rule')
     const canEditMarkdown = computed(() => canEditSelected.value && selectedSkillIsRule.value)
     const isDisplayingWorkingVersion = computed(
       () => selectedSkill.value?.displayVersion === selectedSkill.value?.workingVersion
@@ -492,6 +506,53 @@ export default {
       return currentUser.value?.name || currentUser.value?.username || 'system'
     }
 
+    function openRiskRuleCreateDialog() {
+      if (activeType.value !== 'riskRules') {
+        return
+      }
+      riskRuleCreateForm.value = createDefaultRiskRuleForm()
+      riskRuleCreateOpen.value = true
+    }
+
+    function closeRiskRuleCreateDialog() {
+      if (riskRuleCreateBusy.value) {
+        return
+      }
+      riskRuleCreateOpen.value = false
+    }
+
+    async function submitRiskRuleCreate() {
+      if (!canCreateRiskRule.value || riskRuleCreateBusy.value) {
+        return
+      }
+      const naturalLanguage = String(riskRuleCreateForm.value.natural_language || '').trim()
+      if (naturalLanguage.length < 8) {
+        toast('请至少输入 8 个字的风险规则描述。')
+        return
+      }
+
+      actionState.value = 'generate-risk-rule'
+      try {
+        const detail = await generateRiskRuleAsset(
+          {
+            business_domain: riskRuleCreateForm.value.business_domain,
+            risk_level: riskRuleCreateForm.value.risk_level,
+            natural_language: naturalLanguage
+          },
+          { actor: resolveActor() }
+        )
+        riskRuleCreateOpen.value = false
+        await refreshCurrentAssets()
+        selectedSkill.value = buildDetailViewModel(detail, runs.value)
+        await loadRiskRuleJson(detail.id)
+        toast('风险规则草稿已生成，请在详情中核对业务说明和判断流程。')
+      } catch (error) {
+        toast(error?.message || '风险规则生成失败，请稍后重试。')
+      } finally {
+        actionState.value = ''
+      }
+    }
+
     async function persistRuleRuntimeConfig(asset, runtimeRule) {
       await updateAgentAsset(
         asset.id,
@@ -1421,6 +1482,7 @@ export default {
       activeFilterTokens,
       canManageSelected,
       canEditSelected,
+      canCreateRiskRule,
       canSubmitReview,
       hasReviewSubmitReviewers,
       canReviewSelected,
@@ -1444,6 +1506,11 @@ export default {
       reviewSubmitReviewer,
       reviewSubmitReviewerLoading,
       reviewSubmitReviewerOptions,
+      riskRuleCreateOpen,
+      riskRuleCreateForm,
+      riskRuleCreateBusy,
+      riskRuleCreateDomainOptions: RISK_RULE_CREATE_DOMAIN_OPTIONS,
+      riskRuleLevelOptions: RISK_RULE_LEVEL_OPTIONS,
       showReviewNote,
       spreadsheetUploadInput,
       spreadsheetOnlyOfficeLoading,
@@ -1464,6 +1531,9 @@ export default {
       toggleFilterPopover,
       selectFilter,
       closeFilterPopover,
+      openRiskRuleCreateDialog,
+      closeRiskRuleCreateDialog,
+      submitRiskRuleCreate,
       openVersionSwitch,
       cancelVersionSwitch,
       confirmVersionSwitch,