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/TravelReimbursementCreateView.vue

@@ -82,7 +82,7 @@
                       />
                     </span>
 
-                    <div class="message-bubble">
+                    <div class="message-bubble" :class="buildMessageBubbleClass(message)">
                     <header class="message-meta">
                       <strong>{{ message.role === 'assistant' ? (message.assistantName || ASSISTANT_DISPLAY_NAME) : '我' }}</strong>
                       <time>{{ message.time }}</time>
@@ -357,6 +357,13 @@
                           </p>
                         </template>
 
+                        <div
+                          v-if="buildReviewNextStepRichCopyForMessage(message)"
+                          class="review-next-step-rich-copy message-answer-markdown"
+                          v-html="renderMarkdown(buildReviewNextStepRichCopyForMessage(message))"
+                          @click="handleAssistantMarkdownClick($event, message)"
+                        ></div>
+
                         <div
                           v-if="resolveReviewFooterActions(message.reviewPayload).length"
                           class="review-footer-actions"
@@ -773,7 +780,11 @@
                 </div>
 
                 <Transition name="insight-switch" mode="out-in">
-                  <div :key="`${activeSessionType}-${currentInsight.intent}-${currentInsight.title}-${reviewDrawerMode}`" class="insight-body">
+                  <div
+                    :key="`${activeSessionType}-${currentInsight.intent}-${currentInsight.title}-${reviewDrawerMode}`"
+                    class="insight-body"
+                    :class="{ 'document-review-body': isReviewDocumentDrawer }"
+                  >
                     <template v-if="isKnowledgeSession">
                       <section class="insight-card knowledge-hot-card">
                         <div class="card-head">
@@ -1145,7 +1156,7 @@
                                     v-model="activeReviewDocument.scene_label"
                                     type="text"
                                     :disabled="submitting || reviewActionBusy"
-                                    placeholder="例如：业务招待费 / 差旅费"
+                                    placeholder="例如：出租车/网约车票据 / 火车/高铁票"
                                   />
                                 </label>
 
@@ -1302,6 +1313,22 @@
       @confirm="confirmDeleteCurrentSession"
     />
 
+    <ConfirmDialog
+      :open="nextStepConfirmDialog.open"
+      badge="提交确认"
+      badge-tone="primary"
+      title="确认提交当前单据？"
+      description="提交后单据将进入审批流程，请确认关键信息、票据和风险提示已经核对无误。"
+      cancel-text="再检查一下"
+      confirm-text="确认提交"
+      busy-text="提交中..."
+      confirm-tone="primary"
+      confirm-icon="mdi mdi-send-check-outline"
+      :busy="reviewActionBusy"
+      @close="closeReviewNextStepConfirm"
+      @confirm="confirmReviewNextStepSubmit"
+    />
+
     <Transition name="assistant-modal">
       <div v-if="documentPreviewDialog.open" class="assistant-overlay review-overlay">
         <section class="review-preview-modal">
@@ -1318,11 +1345,13 @@
           <div class="review-preview-body" :class="documentPreviewDialog.kind">
             <img
               v-if="documentPreviewDialog.kind === 'image'"
+              :key="documentPreviewDialog.renderKey"
               :src="documentPreviewDialog.url"
               :alt="documentPreviewDialog.filename"
             />
             <iframe
               v-else-if="documentPreviewDialog.kind === 'pdf'"
+              :key="documentPreviewDialog.renderKey"
               :src="documentPreviewDialog.url"
               title="票据 PDF 原图预览"
             ></iframe>