feat: 增强风险规则生成引擎与预算中心页面

后端拆分风险规则生成为解释器、语义分析、本体对齐等子模块，
优化模板执行和流程图生成，完善员工种子数据和导入逻辑，增强
报销单权限策略和草稿持久化，前端新增预算中心视图和趋势图
组件，重构审计页面和风险规则测试对话框交互，完善文档中心
和报销创建页面细节，补充单元测试覆盖。

web/src/components/shared/RiskRuleTestDialog.vue

@@ -49,6 +49,31 @@
                     </span>
                   </div>
 
+                  <div v-if="message.recognitionDocuments?.length" class="risk-sim-recognition-debug">
+                    <span>单据识别明细</span>
+                    <article
+                      v-for="document in message.recognitionDocuments"
+                      :key="`${message.id}-${document.filename}`"
+                    >
+                      <header>
+                        <strong>{{ document.filename || '临时单据' }}</strong>
+                        <em>{{ formatDocumentMeta(document) }}</em>
+                      </header>
+                      <p v-if="document.summary">摘要：{{ document.summary }}</p>
+                      <div v-if="document.document_fields?.length" class="risk-sim-debug-field-list">
+                        <b
+                          v-for="field in document.document_fields"
+                          :key="`${document.filename}-${field.key}-${field.value}`"
+                        >
+                          {{ field.label }}[{{ field.key }}]：{{ field.value }}
+                        </b>
+                      </div>
+                      <p v-if="document.text" class="risk-sim-debug-ocr-text">
+                        OCR原文：{{ trimDebugText(document.text, 800) }}
+                      </p>
+                    </article>
+                  </div>
+
                   <div v-if="message.result" class="risk-sim-result-card" :class="message.result.severity">
                     <div class="risk-sim-result-head">
                       <div>
@@ -75,6 +100,20 @@
                       </div>
                     </div>
 
+                    <div
+                      v-if="buildRecognizedFieldRows(message.result).length"
+                      class="risk-sim-recognized-fields"
+                    >
+                      <span>规则实际取用字段</span>
+                      <ul>
+                        <li v-for="field in buildRecognizedFieldRows(message.result)" :key="field.key">
+                          <strong>{{ field.label }}</strong>
+                          <em>{{ field.source }}</em>
+                          <b>{{ field.value }}</b>
+                        </li>
+                      </ul>
+                    </div>
+
                     <div v-if="buildEvidenceItems(message.result).length" class="risk-sim-evidence">
                       <span>判断依据</span>
                       <ul>
@@ -262,6 +301,16 @@ import {
   formatTestError,
   formatTime
 } from './riskRuleTestDialogUtils.js'
+import {
+  buildDocumentBrief,
+  buildEvidenceItems as buildEvidenceItemsModel,
+  buildRecognizedFieldRows as buildRecognizedFieldRowsModel,
+  buildResultFields as buildResultFieldsModel,
+  formatDocumentMeta,
+  formatFieldLabel,
+  resolveFileStatusLabel,
+  trimDebugText
+} from './riskRuleTestDialogDisplay.js'
 
 const props = defineProps({
   open: {
@@ -568,8 +617,9 @@ async function recognizeTemporaryFiles(files, activeSessionId) {
     messages.value.push(buildMessage(
       'assistant',
       recognizedCount
-        ? `已完成 ${recognizedCount} 份临时单据识别。请核对右侧识别字段，字段不足时可以直接在输入框补充。`
-        : '上传文件没有提取到足够字段，暂不能直接执行规则。请在输入框补充票据城市、金额、发票号等关键信息。'
+        ? `已完成 ${recognizedCount} 份临时单据识别。下面会展示 OCR 结构化字段和原文片段，请先核对这些信息；字段不足时可以直接在输入框补充。`
+        : '上传文件没有提取到足够字段。下面仍会展示 OCR 返回内容，方便判断是票据质量问题还是字段映射问题。请在输入框补充城市、金额、发票号等关键信息。',
+      { recognitionDocuments: documents }
     ))
   } catch (error) {
     if (!isActiveSession(activeSessionId)) return
@@ -601,52 +651,15 @@ function buildMessage(role, text, extra = {}) {
 }
 
 function buildResultFields(result) {
-  const values = result?.field_values && typeof result.field_values === 'object'
-    ? result.field_values
-    : {}
-  return Object.entries(values).slice(0, 8).map(([key, value]) => ({
-    key,
-    label: formatFieldLabel(fields.value.find((field) => field.key === key) || { key }),
-    value: Array.isArray(value) ? value.join('、') : String(value ?? '-')
-  }))
+  return buildResultFieldsModel(result, fields.value)
+}
+
+function buildRecognizedFieldRows(result) {
+  return buildRecognizedFieldRowsModel(result, fields.value)
 }
 
 function buildEvidenceItems(result) {
-  const evidence = result?.evidence && typeof result.evidence === 'object'
-    ? result.evidence
-    : {}
-  const items = []
-  if (Array.isArray(evidence.failed_conditions)) {
-    evidence.failed_conditions.slice(0, 3).forEach((condition) => {
-      const left = Array.isArray(condition.left_values) ? condition.left_values.join('、') : '-'
-      const right = Array.isArray(condition.right_values) ? condition.right_values.join('、') : '-'
-      items.push(`${formatFieldName(condition.left)}：${left}；${formatFieldName(condition.right)}：${right}`)
-    })
-  }
-  if (Array.isArray(evidence.missing_fields)) {
-    evidence.missing_fields.slice(0, 5).forEach((field) => {
-      items.push(`${formatFieldName(field)} 缺失`)
-    })
-  }
-  if (Array.isArray(evidence.keyword_hits)) {
-    items.push(`命中关键词：${evidence.keyword_hits.join('、')}`)
-  }
-  if (evidence.condition_summary) {
-    items.push(String(evidence.condition_summary))
-  }
-  return [...new Set(items)].slice(0, 5)
-}
-
-function formatFieldLabel(field) {
-  const key = String(field?.key || '').trim()
-  const label = String(field?.display || field?.label || '').trim()
-  if (!key) return label || '-'
-  if (!label || label === key) return key
-  return label.includes(`[${key}]`) ? label : `${label}[${key}]`
-}
-
-function formatFieldName(key) {
-  return formatFieldLabel(fields.value.find((field) => field.key === key) || { key })
+  return buildEvidenceItemsModel(result, fields.value)
 }
 
 function toAttachmentPayload(file) {
@@ -713,23 +726,6 @@ function documentHasMeaningfulText(document) {
   )
 }
 
-function buildDocumentBrief(document) {
-  const fields = Array.isArray(document?.document_fields) ? document.document_fields : []
-  if (fields.length) {
-    return fields.slice(0, 4).map((field) => `${field.label}：${field.value}`).join('；')
-  }
-  return String(document?.summary || document?.text || '未提取到结构化字段').slice(0, 120)
-}
-
-function resolveFileStatusLabel(file) {
-  return file.statusText || {
-    pending: '待发送',
-    recognizing: '识别中',
-    recognized: '已识别',
-    failed: '识别失败'
-  }[file.status] || '待识别'
-}
-
 function buildRecognitionStepDescription() {
   if (!requiresAttachment.value) return '当前规则不需要附件，直接根据文字测试事实抽取字段。'
   if (recognitionBusy.value) return '正在读取临时附件并提取 OCR 字段。'