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/useTravelReimbursementSessionState.js

@@ -15,6 +15,7 @@ import {
   SESSION_TYPE_KNOWLEDGE,
   buildInitialInsightFromConversation,
   buildWelcomeInsight,
+  buildWelcomeQuickActions,
   createWelcomeAssistantMessage,
   hasMeaningfulSessionMessages,
   normalizeInitialConversationMessages,
@@ -25,6 +26,10 @@ import {
   serializeSessionMessages,
   shouldPreferPersistedSessionState
 } from './travelReimbursementConversationModel.js'
+import {
+  createEmptyGuidedFlowState,
+  normalizeGuidedFlowState
+} from './travelReimbursementGuidedFlowModel.js'
 
 export function useTravelReimbursementSessionState({
   props,
@@ -36,9 +41,26 @@ export function useTravelReimbursementSessionState({
   scrollToBottom,
   getSessionRuntimeRefs = () => ({})
 }) {
+  function refreshWelcomeQuickActions(messages, sessionType) {
+    if (!Array.isArray(messages) || !messages.length) {
+      return []
+    }
+    const currentActions = buildWelcomeQuickActions(
+      sessionType,
+      currentUser.value,
+      props.entrySource,
+      linkedRequest.value
+    )
+    return messages.map((message) => (
+      message?.isWelcome
+        ? { ...message, welcomeQuickActions: currentActions }
+        : message
+    ))
+  }
+
   function buildConversationSessionState(conversation, fallbackSessionType = SESSION_TYPE_EXPENSE) {
     const sessionType = resolveInitialSessionType(conversation) || fallbackSessionType
-    const restoredMessages = normalizeInitialConversationMessages(conversation)
+    const restoredMessages = refreshWelcomeQuickActions(normalizeInitialConversationMessages(conversation), sessionType)
     const initialInsight = buildInitialInsightFromConversation(conversation)
     const restoredReviewFilePreviews = buildReviewFilePreviewsFromMessages(restoredMessages)
 
@@ -56,6 +78,7 @@ export function useTravelReimbursementSessionState({
       attachedFiles: [],
       composerFilesExpanded: false,
       composerUploadIntent: '',
+      guidedFlowState: createEmptyGuidedFlowState(),
       insightPanelCollapsed: false
     }
   }
@@ -79,6 +102,7 @@ export function useTravelReimbursementSessionState({
       attachedFiles: [],
       composerFilesExpanded: false,
       composerUploadIntent: '',
+      guidedFlowState: createEmptyGuidedFlowState(),
       insightPanelCollapsed: false
     }
   }
@@ -90,7 +114,7 @@ export function useTravelReimbursementSessionState({
     }
 
     const sessionType = String(state.sessionType || snapshot.sessionType || fallbackSessionType || '').trim() || SESSION_TYPE_EXPENSE
-    const restoredMessages = normalizeSnapshotMessages(state.messages)
+    const restoredMessages = refreshWelcomeQuickActions(normalizeSnapshotMessages(state.messages), sessionType)
     if (
       !hasMeaningfulSessionMessages(restoredMessages)
         && !String(state.conversationId || '').trim()
@@ -114,6 +138,7 @@ export function useTravelReimbursementSessionState({
       attachedFiles: [],
       composerFilesExpanded: false,
       composerUploadIntent: String(state.composerUploadIntent || '').trim(),
+      guidedFlowState: normalizeGuidedFlowState(state.guidedFlowState),
       insightPanelCollapsed: Boolean(state.insightPanelCollapsed)
     }
   }
@@ -155,6 +180,7 @@ export function useTravelReimbursementSessionState({
   })
   const currentInsight = ref(initialSessionState.currentInsight)
   const composerUploadIntent = ref(String(initialSessionState.composerUploadIntent || '').trim())
+  const guidedFlowState = ref(normalizeGuidedFlowState(initialSessionState.guidedFlowState))
   const insightPanelCollapsed = ref(false)
   const sessionSwitchBusy = ref(false)
   let knowledgeSessionResetPromise = Promise.resolve()
@@ -170,6 +196,7 @@ export function useTravelReimbursementSessionState({
       reviewFilePreviews: filterPersistableFilePreviews(state.reviewFilePreviews),
       composerDraft: String(state.composerDraft || ''),
       composerUploadIntent: String(state.composerUploadIntent || '').trim(),
+      guidedFlowState: normalizeGuidedFlowState(state.guidedFlowState),
       insightPanelCollapsed: Boolean(state.insightPanelCollapsed)
     }
   }
@@ -209,6 +236,7 @@ export function useTravelReimbursementSessionState({
       attachedFiles: runtimeRefs.attachedFiles?.value ?? [],
       composerFilesExpanded: runtimeRefs.composerFilesExpanded?.value ?? false,
       composerUploadIntent: composerUploadIntent.value,
+      guidedFlowState: runtimeRefs.guidedFlowState?.value ?? guidedFlowState.value,
       insightPanelCollapsed: insightPanelCollapsed.value
     }
   }
@@ -246,6 +274,11 @@ export function useTravelReimbursementSessionState({
       runtimeRefs.composerFilesExpanded.value = Boolean(nextState.composerFilesExpanded)
     }
     composerUploadIntent.value = String(nextState.composerUploadIntent || '').trim()
+    const nextGuidedFlowState = normalizeGuidedFlowState(nextState.guidedFlowState)
+    guidedFlowState.value = nextGuidedFlowState
+    if (runtimeRefs.guidedFlowState) {
+      runtimeRefs.guidedFlowState.value = nextGuidedFlowState
+    }
     insightPanelCollapsed.value = Boolean(nextState.insightPanelCollapsed)
     nextTick(() => {
       adjustComposerTextareaHeight()
@@ -322,6 +355,7 @@ export function useTravelReimbursementSessionState({
     currentInsight,
     reviewFilePreviews,
     composerUploadIntent,
+    guidedFlowState,
     insightPanelCollapsed,
     sessionSwitchBusy,
     initialSessionState,