feat(web): 设置中心缓存管理与文件预览资产工具

- 新增 documentPreviewAssets 工具，统一从 URL/Blob/File 推断预览类型（image/pdf/file/unsupported）
- SettingsView/SettingsView.js/settingsModelHelper 新增系统缓存管理区块，调用 /settings/cache/clear 并展示清理结果；useSettings/services 适配
- WorkbenchAiFilePreviewDialog/useWorkbenchAiFilePreview 接入预览资产工具，workbenchAiComposerModel 调整文件处理
- ReceiptFolder/LogDetailView/DigitalEmployeeWorkRecords/travelReimbursementAttachmentModel 配套适配
- 新增 settings-cache-management-section 测试，更新 settings-llm/rendering/receipt-folder-view/composer-components/attachment-association 测试

web/src/assets/styles/views/settings-view.css

@@ -687,7 +687,243 @@
 }
 
 .rendering-settings-card .switch-group {
-  margin-bottom: 20px;
+  margin-bottom: 24px;
+}
+
+.cache-management-card {
+  display: grid;
+  gap: 16px;
+}
+
+
+
+.cache-management-hero-metrics {
+  display: grid;
+  grid-template-columns: repeat(2, minmax(92px, 1fr));
+  gap: 8px;
+}
+
+.cache-management-hero-metrics span {
+  min-height: 64px;
+  display: grid;
+  align-content: center;
+  gap: 2px;
+  padding: 10px 12px;
+  border: 1px solid #e2e8f0;
+  border-radius: 6px;
+  background: #ffffff;
+}
+
+.cache-management-hero-metrics strong {
+  color: #0f172a;
+  font-size: 18px;
+  font-weight: 850;
+  line-height: 1.1;
+}
+
+.cache-management-hero-metrics small {
+  color: #64748b;
+  font-size: 12px;
+  font-weight: 700;
+}
+
+.cache-safety-strip {
+  min-height: 42px;
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  padding: 10px 14px;
+  border: 1px solid #e2e8f0;
+  border-radius: 6px;
+  background: #f8fafc;
+  color: #475569;
+  font-size: 13px;
+  font-weight: 700;
+  line-height: 1.5;
+}
+
+.cache-safety-strip i {
+  flex: 0 0 auto;
+  font-size: 18px;
+}
+
+.cache-scope-grid {
+  display: grid;
+  grid-template-columns: repeat(4, minmax(0, 1fr));
+  gap: 12px;
+}
+
+.cache-scope-item {
+  min-width: 0;
+  min-height: 148px;
+  display: grid;
+  align-content: start;
+  gap: 8px;
+  padding: 16px;
+  border: 1px solid #e2e8f0;
+  border-radius: 6px;
+  background: #ffffff;
+}
+
+.cache-scope-item i {
+  width: 32px;
+  height: 32px;
+  display: grid;
+  place-items: center;
+  border-radius: 6px;
+  background: #f1f5f9;
+  color: #475569;
+  font-size: 17px;
+}
+
+.cache-scope-item strong {
+  color: #0f172a;
+  font-size: 14px;
+  font-weight: 800;
+  line-height: 1.35;
+}
+
+.cache-scope-item span {
+  color: #64748b;
+  font-size: 12.5px;
+  font-weight: 600;
+  line-height: 1.55;
+}
+
+.cache-management-panel {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 18px;
+  padding: 16px 18px;
+  border: 1px solid #e2e8f0;
+  border-radius: 6px;
+  background: #ffffff;
+}
+
+.cache-management-copy {
+  min-width: 0;
+  display: grid;
+  gap: 4px;
+}
+
+.cache-management-copy strong {
+  color: #0f172a;
+  font-size: 15px;
+  font-weight: 800;
+  line-height: 1.35;
+}
+
+.cache-management-copy span {
+  color: #64748b;
+  font-size: 12.5px;
+  font-weight: 650;
+  line-height: 1.5;
+}
+
+.cache-clear-button {
+  min-height: 36px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  gap: 8px;
+  padding: 0 16px;
+  border: 1px solid #cbd5e1;
+  border-radius: 4px;
+  background: #ffffff;
+  color: #334155;
+  font-size: 13px;
+  font-weight: 700;
+  white-space: nowrap;
+  transition: all 0.2s ease;
+  cursor: pointer;
+}
+
+.cache-clear-button:hover:not(:disabled) {
+  border-color: var(--theme-primary);
+  background: var(--theme-primary-soft);
+  color: var(--theme-primary-active);
+}
+
+.cache-clear-button:disabled {
+  cursor: not-allowed;
+  opacity: 0.65;
+}
+
+.cache-clear-result,
+.cache-clear-empty {
+  padding: 14px 16px;
+  border: 1px solid #dbe4ee;
+  border-radius: 6px;
+  background: #ffffff;
+}
+
+.cache-clear-result.is-error {
+  border-color: #fecaca;
+  background: #fff7f7;
+}
+
+.cache-clear-result-head {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.cache-clear-result-head i {
+  color: #16a34a;
+  font-size: 18px;
+}
+
+.cache-clear-result.is-error .cache-clear-result-head i {
+  color: #dc2626;
+}
+
+.cache-clear-result-head strong {
+  color: #0f172a;
+  font-size: 13.5px;
+  font-weight: 800;
+  line-height: 1.4;
+}
+
+.cache-clear-result ul {
+  display: grid;
+  gap: 8px;
+  margin: 12px 0 0;
+  padding: 0;
+  list-style: none;
+}
+
+.cache-clear-result li {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+  padding-top: 8px;
+  border-top: 1px solid #eef2f7;
+  color: #475569;
+  font-size: 12.5px;
+  font-weight: 650;
+}
+
+.cache-clear-result li strong {
+  color: #0f172a;
+  font-weight: 800;
+  white-space: nowrap;
+}
+
+.cache-clear-empty {
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+  justify-self: start;
+  color: #64748b;
+  font-size: 12.5px;
+  font-weight: 650;
+}
+
+.cache-clear-empty i {
+  color: var(--theme-primary);
+  font-size: 15px;
 }
 
 .log-policy-card .card-head {
@@ -751,6 +987,15 @@
   .save-button {
     justify-content: center;
   }
+
+  .cache-management-panel {
+    grid-template-columns: 1fr;
+    align-items: stretch;
+  }
+
+  .cache-scope-grid {
+    grid-template-columns: repeat(2, minmax(0, 1fr));
+  }
 }
 
 @media (max-width: 960px) {
@@ -801,6 +1046,21 @@
     justify-items: start;
     padding: 20px;
   }
+
+
+
+  .cache-management-hero-metrics {
+    grid-template-columns: repeat(2, minmax(0, 1fr));
+  }
+
+  .cache-management-panel {
+    flex-direction: column;
+    align-items: stretch;
+  }
+
+  .cache-clear-button {
+    width: 100%;
+  }
 }
 
 @media (max-width: 640px) {
@@ -850,4 +1110,16 @@
     overflow: hidden;
     text-overflow: ellipsis;
   }
+
+  .cache-scope-item,
+  .cache-management-panel,
+  .cache-clear-result,
+  .cache-clear-empty {
+    border-radius: 6px;
+  }
+
+  .cache-scope-grid,
+  .cache-management-hero-metrics {
+    grid-template-columns: 1fr;
+  }
 }

web/src/components/audit/DigitalEmployeeWorkRecords.vue

@@ -250,10 +250,6 @@
         </template>
 
         <template #actions>
-          <button class="minor-action" type="button" :disabled="!selectedRunDetail?.run_id" @click="openTraceCenter">
-            <i class="mdi mdi-timeline-text-outline"></i>
-            <span>查看 Trace</span>
-          </button>
           <button class="minor-action" type="button" :disabled="detailLoading" @click="reloadSelectedDetail">
             <i class="mdi mdi-refresh"></i>
             <span>{{ detailLoading ? '刷新中...' : '刷新详情' }}</span>
@@ -266,7 +262,6 @@
 
 <script setup>
 import { computed, onBeforeUnmount, onMounted, ref, watch } from 'vue'
-import { useRouter } from 'vue-router'
 
 import AuditPickerFilter from './AuditPickerFilter.vue'
 import DigitalEmployeeRunProducts from './DigitalEmployeeRunProducts.vue'
@@ -303,7 +298,6 @@ const props = defineProps({
 const emit = defineEmits(['summary-change', 'detail-open-change', 'detail-topbar-change'])
 
 const { toast } = useToast()
-const router = useRouter()
 const runs = ref([])
 const loading = ref(false)
 const errorMessage = ref('')
@@ -586,14 +580,6 @@ function closeWorkRecordDetail() {
   detailError.value = ''
 }
 
-function openTraceCenter() {
-  const runId = String(selectedRunDetail.value?.run_id || selectedRunId.value || '').trim()
-  if (!runId) {
-    return
-  }
-  router.push({ name: 'app-settings', query: { section: 'agentTraces', run_id: runId } })
-}
-
 watch(
   () => props.focusRunId,
   (runId) => {

web/src/components/business/workbench-ai/WorkbenchAiFilePreviewDialog.vue

@@ -36,6 +36,10 @@
               class="workbench-ai-file-preview-frame"
               title="附件 PDF 预览"
             ></iframe>
+            <div v-else-if="preview.sourceKind === 'loading'" class="workbench-ai-file-preview-state">
+              <i class="mdi mdi-loading"></i>
+              <span>正在加载统一预览。</span>
+            </div>
             <div v-else class="workbench-ai-file-preview-state">
               <i class="mdi mdi-file-eye-outline"></i>
               <span>当前附件暂不支持直接预览。</span>

web/src/composables/useSettings.js

@@ -3,7 +3,7 @@ import { useRoute, useRouter } from 'vue-router'
 
 import { useSystemState } from './useSystemState.js'
 import { useThemeSkin } from './useThemeSkin.js'
-import { fetchSettings, saveSettings } from '../services/settings.js'
+import { clearSystemCaches, fetchSettings, saveSettings } from '../services/settings.js'
 import { useToast } from './useToast.js'
 import {
   isHermesEmployeeSettingsReady
@@ -56,6 +56,10 @@ export function useSettings() {
   const sessionRetentionPickerOpen = ref(false)
   const sessionRetentionPickerRef = ref(null)
   const logoInputRef = ref(null)
+  const cacheClearing = ref(false)
+  const cacheClearItems = ref([])
+  const cacheClearMessage = ref('')
+  const cacheClearFailed = ref(false)
 
   const sections = SECTION_DEFINITIONS
   const logLevels = LOG_LEVELS
@@ -433,6 +437,46 @@ export function useSettings() {
     })
   }
 
+  function normalizeCacheClearErrorMessage(error) {
+    const message = String(error?.message || '').trim()
+
+    if (!message || /^not found$/i.test(message)) {
+      return '缓存清理接口暂不可用，请确认后端服务已加载最新路由后重试。'
+    }
+
+    return message
+  }
+
+  async function clearAllCaches() {
+    if (cacheClearing.value) {
+      return
+    }
+
+    cacheClearing.value = true
+    cacheClearMessage.value = ''
+    cacheClearItems.value = []
+    cacheClearFailed.value = false
+
+    try {
+      const payload = await clearSystemCaches()
+      const items = Array.isArray(payload?.items) ? payload.items : []
+      const totalCleared = Number(payload?.totalCleared || 0)
+      cacheClearItems.value = items
+      cacheClearMessage.value = totalCleared > 0
+        ? `已清理 ${totalCleared} 条缓存。`
+        : '当前没有可清理的缓存。'
+      cacheClearFailed.value = false
+      toast(cacheClearMessage.value)
+    } catch (error) {
+      const message = normalizeCacheClearErrorMessage(error)
+      cacheClearFailed.value = true
+      cacheClearMessage.value = message
+      toast(message)
+    } finally {
+      cacheClearing.value = false
+    }
+  }
+
   async function saveMailSection() {
     const mailForm = pageState.value.mailForm
 
@@ -494,6 +538,10 @@ export function useSettings() {
       return
     }
 
+    if (activeSection.value === 'cacheManagement') {
+      return
+    }
+
     if (activeSection.value === 'rendering') {
       await saveRenderingSection()
       return
@@ -557,6 +605,11 @@ export function useSettings() {
     activeThemeSkinId,
     archiveCycleOptions,
     activateSection,
+    cacheClearFailed,
+    cacheClearItems,
+    cacheClearMessage,
+    cacheClearing,
+    clearAllCaches,
     clearRenderSecretMask,
     completedSectionCount,
     logLevels,

web/src/composables/workbenchAiMode/useWorkbenchAiFilePreview.js

@@ -1,5 +1,13 @@
 import { computed, onBeforeUnmount, ref, watch } from 'vue'
 import { buildSelectedFileCards } from './workbenchAiComposerModel.js'
+import { fetchReceiptFolderAsset } from '../../services/receiptFolder.js'
+import {
+  inferPreviewKindFromBlob,
+  inferPreviewKindFromFile,
+  isInlinePreviewUrl,
+  isTemporaryPreviewUrl,
+  resolveDocumentPreviewAsset
+} from '../../utils/documentPreviewAssets.js'
 
 function normalizePreviewText(value) {
   return String(value ?? '').replace(/\s+/g, ' ').trim()
@@ -40,10 +48,6 @@ function normalizePreviewField(field = {}) {
   }
 }
 
-function resolveDocumentPreviewUrl(document = null) {
-  return normalizePreviewText(document?.preview_data_url || document?.previewDataUrl)
-}
-
 function resolveSourceKind(sourceUrl, rawFile = {}) {
   const type = normalizePreviewText(rawFile?.type).toLowerCase()
   const name = normalizePreviewText(rawFile?.name).toLowerCase()
@@ -72,8 +76,18 @@ export function useWorkbenchAiFilePreview({
   scrollInlineConversationToBottom,
   selectedFiles
 }) {
-  const filePreviewState = ref({ open: false, key: '', objectUrl: '' })
+  const filePreviewState = ref({
-  const selectedFileCards = computed(() => buildSelectedFileCards(selectedFiles.value).map((card, index) => ({
+    open: false,
+    key: '',
+    objectUrl: '',
+    objectKind: '',
+    objectSource: '',
+    loading: false
+  })
+  const selectedFileCards = computed(() => buildSelectedFileCards(
+    selectedFiles.value,
+    (file) => attachmentFlow.resolveAiModeReceiptRecognitionState(file)
+  ).map((card, index) => ({
     ...card,
     ocrState: attachmentFlow.resolveAiModeReceiptRecognitionState(selectedFiles.value[index])
   })))
@@ -97,22 +111,94 @@ export function useWorkbenchAiFilePreview({
     }
   }
 
+  function resolveTargetDocument(target) {
+    if (!target?.rawFile) {
+      return null
+    }
+    const recognitionState = attachmentFlow.resolveAiModeReceiptRecognitionState(target.rawFile) || target.card.ocrState || null
+    return recognitionState?.document || null
+  }
+
+  function resolveRemotePreviewAsset(target) {
+    const asset = resolveDocumentPreviewAsset(resolveTargetDocument(target))
+    if (!asset?.url || isInlinePreviewUrl(asset.url) || isTemporaryPreviewUrl(asset.url)) {
+      return null
+    }
+    return asset
+  }
+
+  async function loadRemotePreviewAsset(fileKey) {
+    const target = findSelectedFile(fileKey)
+    const asset = resolveRemotePreviewAsset(target)
+    if (!target?.rawFile || !asset?.url) {
+      return
+    }
+
+    try {
+      const blob = await fetchReceiptFolderAsset(asset.url)
+      const objectUrl = createObjectUrl(blob)
+      const objectKind = inferPreviewKindFromBlob(blob) || asset.kind
+      if (!objectUrl || !['image', 'pdf'].includes(objectKind)) {
+        return
+      }
+      if (!filePreviewState.value.open || filePreviewState.value.key !== fileKey) {
+        URL.revokeObjectURL(objectUrl)
+        return
+      }
+      clearFilePreviewObjectUrl()
+      filePreviewState.value = {
+        ...filePreviewState.value,
+        objectUrl,
+        objectKind,
+        objectSource: asset.source,
+        loading: false
+      }
+    } catch (error) {
+      console.warn('AI mode remote attachment preview unavailable:', error)
+      if (!filePreviewState.value.open || filePreviewState.value.key !== fileKey) {
+        return
+      }
+      clearFilePreviewObjectUrl()
+      filePreviewState.value = {
+        ...filePreviewState.value,
+        objectUrl: createObjectUrl(target.rawFile),
+        objectKind: inferPreviewKindFromFile(target.rawFile),
+        objectSource: 'file',
+        loading: false
+      }
+    }
+  }
+
   function openAiModeFilePreview(fileKey) {
     const target = findSelectedFile(fileKey)
     if (!target?.rawFile) {
       return
     }
     clearFilePreviewObjectUrl()
+    const remoteAsset = resolveRemotePreviewAsset(target)
     filePreviewState.value = {
       open: true,
       key: fileKey,
-      objectUrl: createObjectUrl(target.rawFile)
+      objectUrl: remoteAsset ? '' : createObjectUrl(target.rawFile),
+      objectKind: remoteAsset ? '' : inferPreviewKindFromFile(target.rawFile),
+      objectSource: remoteAsset ? remoteAsset.source : 'file',
+      loading: Boolean(remoteAsset)
+    }
+    if (remoteAsset) {
+      void loadRemotePreviewAsset(fileKey)
     }
   }
 
   function closeAiModeFilePreview() {
     clearFilePreviewObjectUrl()
-    filePreviewState.value = { open: false, key: '', objectUrl: '' }
+    filePreviewState.value = {
+      open: false,
+      key: '',
+      objectUrl: '',
+      objectKind: '',
+      objectSource: '',
+      loading: false
+    }
   }
 
   const activeAiModeFilePreview = computed(() => {
@@ -128,9 +214,16 @@ export function useWorkbenchAiFilePreview({
     const document = recognitionState?.document || null
     const documentFields = Array.isArray(document?.document_fields) ? document.document_fields : document?.fields || []
     const ocrFields = documentFields.map((field) => normalizePreviewField(field)).filter(Boolean)
-    const documentPreviewUrl = resolveDocumentPreviewUrl(document)
+    const documentPreviewAsset = resolveDocumentPreviewAsset(document)
-    const sourceUrl = documentPreviewUrl || filePreviewState.value.objectUrl
+    const inlinePreviewAvailable = documentPreviewAsset?.url && isInlinePreviewUrl(documentPreviewAsset.url)
-    const sourceKind = documentPreviewUrl ? 'image' : resolveSourceKind(sourceUrl, rawFile)
+    const sourceUrl = inlinePreviewAvailable
+      ? documentPreviewAsset.url
+      : filePreviewState.value.objectUrl
+    const sourceKind = inlinePreviewAvailable
+      ? documentPreviewAsset.kind
+      : filePreviewState.value.loading
+        ? 'loading'
+        : filePreviewState.value.objectKind || resolveSourceKind(sourceUrl, rawFile)
     const documentTypeLabel = normalizePreviewText(
       document?.document_type_label ||
         document?.scene_label ||

web/src/composables/workbenchAiMode/workbenchAiComposerModel.js

@@ -1,4 +1,5 @@
 import { buildFileIdentity } from '../../views/scripts/travelReimbursementAttachmentModel.js'
+import { resolveDocumentPreviewAsset } from '../../utils/documentPreviewAssets.js'
 
 export const AI_COMPOSER_FILE_TYPE_META = {
   pdf: { label: 'PDF', icon: 'mdi mdi-file-pdf-box', tone: 'pdf' },
@@ -44,7 +45,14 @@ export function resolveAiComposerFileName(file) {
   return String(file?.name || '未命名附件').trim() || '未命名附件'
 }
 
-export function resolveAiComposerFileType(file) {
+export function resolveAiComposerFileType(file, previewAsset = null) {
+  if (previewAsset?.kind === 'image') {
+    return AI_COMPOSER_FILE_TYPE_META.image
+  }
+  if (previewAsset?.kind === 'pdf') {
+    return AI_COMPOSER_FILE_TYPE_META.pdf
+  }
+
   const fileName = resolveAiComposerFileName(file).toLowerCase()
   const mimeType = String(file?.type || '').toLowerCase()
   const extension = fileName.includes('.') ? fileName.split('.').pop() : ''
@@ -66,12 +74,19 @@ export function resolveAiComposerFileType(file) {
   return AI_COMPOSER_FILE_TYPE_META.file
 }
 
-export function buildSelectedFileCards(files = []) {
+export function buildSelectedFileCards(files = [], resolveRecognitionState = null) {
-  return files.map((file) => ({
+  return files.map((file, index) => {
-    key: buildFileIdentity(file),
+    const recognitionState = typeof resolveRecognitionState === 'function'
-    name: resolveAiComposerFileName(file),
+      ? resolveRecognitionState(file, index)
-    ...resolveAiComposerFileType(file)
+      : null
-  }))
+    const previewAsset = resolveDocumentPreviewAsset(recognitionState?.document || null)
+    return {
+      key: buildFileIdentity(file),
+      name: resolveAiComposerFileName(file),
+      ...resolveAiComposerFileType(file, previewAsset),
+      previewAsset: previewAsset || null
+    }
+  })
 }
 
 export function isLikelyAiModeOcrFile(file = {}) {

web/src/services/settings.js

@@ -17,3 +17,9 @@ export function testModelConnectivity(payload) {
     body: JSON.stringify(payload)
   })
 }
+
+export function clearSystemCaches() {
+  return apiRequest('/settings/cache/clear', {
+    method: 'POST'
+  })
+}

web/src/utils/documentPreviewAssets.js

@@ -0,0 +1,118 @@
+function normalizePreviewText(value) {
+  return String(value ?? '').replace(/\s+/g, ' ').trim()
+}
+
+function normalizePreviewKind(value) {
+  const normalized = normalizePreviewText(value).toLowerCase()
+  return ['image', 'pdf', 'file', 'unsupported'].includes(normalized) ? normalized : ''
+}
+
+export function inferPreviewKindFromUrl(url) {
+  const normalized = normalizePreviewText(url).toLowerCase()
+  if (!normalized) return ''
+  if (normalized.startsWith('data:image/') || /\.(png|jpe?g|webp|gif|bmp|svg)(?:[?#].*)?$/i.test(normalized)) {
+    return 'image'
+  }
+  if (normalized.startsWith('data:application/pdf') || /\.pdf(?:[?#].*)?$/i.test(normalized)) {
+    return 'pdf'
+  }
+  return ''
+}
+
+export function inferPreviewKindFromBlob(blob) {
+  const mediaType = normalizePreviewText(blob?.type).toLowerCase()
+  if (mediaType.startsWith('image/')) return 'image'
+  if (mediaType === 'application/pdf') return 'pdf'
+  return ''
+}
+
+export function inferPreviewKindFromFile(file) {
+  const mediaType = normalizePreviewText(file?.type).toLowerCase()
+  const filename = normalizePreviewText(file?.name).toLowerCase()
+  if (mediaType.startsWith('image/') || /\.(png|jpe?g|webp|gif|bmp|svg|heic)$/i.test(filename)) {
+    return 'image'
+  }
+  if (mediaType.includes('pdf') || /\.pdf$/i.test(filename)) {
+    return 'pdf'
+  }
+  return 'file'
+}
+
+export function isInlinePreviewUrl(url) {
+  return normalizePreviewText(url).toLowerCase().startsWith('data:')
+}
+
+export function isTemporaryPreviewUrl(url) {
+  return normalizePreviewText(url).toLowerCase().startsWith('blob:')
+}
+
+export function resolveDocumentPreviewKind(item = {}, fallback = '') {
+  const explicit = normalizePreviewKind(item?.preview_kind || item?.previewKind)
+  if (explicit) {
+    return explicit
+  }
+  return inferPreviewKindFromUrl(resolveDocumentPreviewUrl(item)) || normalizePreviewKind(fallback)
+}
+
+export function resolveDocumentPreviewUrl(item = {}) {
+  return normalizePreviewText(
+    item?.preview_data_url ||
+      item?.previewDataUrl ||
+      item?.preview_url ||
+      item?.previewUrl ||
+      item?.receipt_preview_url ||
+      item?.receiptPreviewUrl
+  )
+}
+
+export function resolveDocumentPreviewAsset(item = {}, options = {}) {
+  const sourceCandidates = [
+    {
+      source: 'inline',
+      url: normalizePreviewText(item?.preview_data_url || item?.previewDataUrl)
+    },
+    {
+      source: 'remote',
+      url: normalizePreviewText(item?.preview_url || item?.previewUrl)
+    },
+    {
+      source: 'receipt',
+      url: normalizePreviewText(item?.receipt_preview_url || item?.receiptPreviewUrl)
+    }
+  ]
+  const explicitKind = normalizePreviewKind(item?.preview_kind || item?.previewKind)
+
+  for (const candidate of sourceCandidates) {
+    if (!candidate.url) continue
+    const kind = explicitKind || inferPreviewKindFromUrl(candidate.url)
+    if (!['image', 'pdf'].includes(kind)) continue
+    return {
+      kind,
+      url: candidate.url,
+      source: candidate.source
+    }
+  }
+
+  const fallbackUrl = normalizePreviewText(options.fallbackUrl)
+  if (fallbackUrl) {
+    const kind = inferPreviewKindFromUrl(fallbackUrl) || inferPreviewKindFromFile(options.fallbackFile)
+    if (['image', 'pdf'].includes(kind)) {
+      return {
+        kind,
+        url: fallbackUrl,
+        source: 'file'
+      }
+    }
+  }
+
+  const fallbackKind = inferPreviewKindFromFile(options.fallbackFile)
+  if (fallbackKind) {
+    return {
+      kind: fallbackKind,
+      url: '',
+      source: 'file'
+    }
+  }
+
+  return null
+}

web/src/utils/settingsModelHelper.js

@@ -84,11 +84,11 @@ export const SECTION_DEFINITIONS = [
     actionLabel: ''
   },
   {
-    id: 'agentTraces',
+    id: 'cacheManagement',
-    label: 'Agent Trace',
+    label: '缓存管理',
-    title: 'Agent 链路追踪',
+    title: '系统缓存管理',
-    desc: '对话链路、工具调用与事件重放',
+    desc: 'OCR、模型与索引缓存',
-    longDesc: '按 Run ID 还原 Orchestrator 到下游 Agent 的语义识别、路由、工具调用、会话写回和最终回复，便于线上排障和审计复盘。',
+    longDesc: '手动清理 OCR 识别结果、模型失败冷却、知识库本地索引和运行时配置等进程内缓存。',
     actionLabel: ''
   },
   {
@@ -482,7 +482,7 @@ export function computeSectionStatus(state) {
         normalizeValue(state.logForm.logPath)
     ),
     systemLogs: true,
-    agentTraces: true,
+    cacheManagement: true,
     mail: Boolean(
       normalizeValue(state.mailForm.smtpHost) &&
         Number(state.mailForm.port) > 0 &&

web/src/views/LogDetailView.vue

@@ -34,10 +34,6 @@
               <i class="mdi mdi-refresh"></i>
               <span>刷新详情</span>
             </button>
-            <button class="refresh-btn" type="button" @click="openAgentTraceCenter">
-              <i class="mdi mdi-timeline-text-outline"></i>
-              <span>查看 Trace</span>
-            </button>
           </div>
         </article>
 
@@ -445,14 +441,6 @@ function backToLogs() {
   router.push({ name: 'app-settings', query: { section: 'systemLogs' } })
 }
 
-function openAgentTraceCenter() {
-  const runId = String(hermesRun.value?.run_id || '').trim()
-  if (!runId) {
-    return
-  }
-  router.push({ name: 'app-settings', query: { section: 'agentTraces', run_id: runId } })
-}
-
 watch(
   () => [route.params.logKind, route.params.logId],
   () => {

web/src/views/ReceiptFolderView.vue

@@ -381,6 +381,7 @@ import {
   fetchReceiptFolderItems,
   updateReceiptFolderItem
 } from '../services/receiptFolder.js'
+import { inferPreviewKindFromBlob } from '../utils/documentPreviewAssets.js'
 import { createReceiptDetailDashboardModel } from './scripts/receiptFolderDetailDashboard.js'
 import { createReceiptDetailFieldModel } from './scripts/receiptFolderDetailFields.js'
 import { createReceiptFolderListFilterModel } from './scripts/receiptFolderListFilters.js'
@@ -638,6 +639,13 @@ async function loadPreview(detail) {
   if (!detail?.preview_url) return
   try {
     const blob = await fetchReceiptFolderAsset(detail.preview_url)
+    const resolvedPreviewKind = inferPreviewKindFromBlob(blob)
+    if (resolvedPreviewKind && selectedReceipt.value?.id === detail.id) {
+      selectedReceipt.value = {
+        ...selectedReceipt.value,
+        preview_kind: resolvedPreviewKind
+      }
+    }
     previewObjectUrl.value = URL.createObjectURL(blob)
   } catch {
     previewObjectUrl.value = ''

web/src/views/SettingsView.vue

@@ -45,7 +45,7 @@
 
         <div
           class="settings-content"
-          :class="{ 'settings-content-fill': ['systemLogs', 'agentTraces'].includes(activeSection) }"
+          :class="{ 'settings-content-fill': ['systemLogs'].includes(activeSection) }"
         >
           <template v-if="activeSection === 'profile'">
             <section class="settings-card">
@@ -442,8 +442,95 @@
             <LogsView v-else class="settings-logs-view" />
           </template>
 
-          <template v-else-if="activeSection === 'agentTraces'">
+          <template v-else-if="activeSection === 'cacheManagement'">
-            <AgentTraceCenterView class="settings-trace-center-view" />
+            <section class="settings-card cache-management-card">
+              <div class="card-head">
+                <div class="card-title-with-icon">
+                  <div class="model-icon-box slate">
+                    <i class="mdi mdi-cached"></i>
+                  </div>
+                  <div>
+                    <h4>应用缓存清理</h4>
+                    <p>清理运行时产生的临时结果，释放进程内缓存，并让下一次识别、检索或模型调用重新构建最新状态。</p>
+                  </div>
+                </div>
+
+                <div class="cache-management-hero-metrics" aria-label="缓存清理范围概览">
+                  <span>
+                    <strong>4 类</strong>
+                    <small>清理范围</small>
+                  </span>
+                  <span>
+                    <strong>0 项</strong>
+                    <small>数据删除</small>
+                  </span>
+                </div>
+              </div>
+
+              <div>
+                <div class="cache-safety-strip">
+                  <i class="mdi mdi-shield-check-outline" aria-hidden="true"></i>
+                  <span>不会删除源文件、业务单据和系统日志，只清理可重新生成的进程内缓存。</span>
+                </div>
+              </div>
+
+              <div class="cache-scope-grid" aria-label="缓存清理范围">
+                <article class="cache-scope-item">
+                  <i class="mdi mdi-text-recognition" aria-hidden="true"></i>
+                  <strong>OCR 识别结果</strong>
+                  <span>清空票据识别的内存结果，下次上传或查看时重新识别。</span>
+                </article>
+                <article class="cache-scope-item">
+                  <i class="mdi mdi-robot-outline" aria-hidden="true"></i>
+                  <strong>模型失败冷却</strong>
+                  <span>解除模型通道失败后的短期冷却，便于恢复后立即重试。</span>
+                </article>
+                <article class="cache-scope-item">
+                  <i class="mdi mdi-book-search-outline" aria-hidden="true"></i>
+                  <strong>知识库本地索引</strong>
+                  <span>清理本地检索索引缓存，下一次检索会重新读取知识库。</span>
+                </article>
+                <article class="cache-scope-item">
+                  <i class="mdi mdi-tune-variant" aria-hidden="true"></i>
+                  <strong>运行时配置缓存</strong>
+                  <span>刷新进程内配置读取结果，避免继续使用旧配置快照。</span>
+                </article>
+              </div>
+
+              <div>
+                <div class="cache-management-panel">
+                  <div class="cache-management-copy">
+                    <strong>立即执行维护清理</strong>
+                    <span>建议在 OCR 配置、模型接入或知识库文件调整后使用。</span>
+                  </div>
+                  <button class="cache-clear-button" type="button" :disabled="cacheClearing" @click="clearAllCaches">
+                    <i class="mdi" :class="cacheClearing ? 'mdi-loading mdi-spin' : 'mdi-delete-sweep-outline'"></i>
+                    <span>{{ cacheClearing ? '清理中...' : '一键清理缓存' }}</span>
+                  </button>
+                </div>
+              </div>
+
+              <div v-if="cacheClearMessage" class="cache-clear-result" :class="{ 'is-error': cacheClearFailed }">
+                <div class="cache-clear-result-head">
+                  <i
+                    class="mdi"
+                    :class="cacheClearFailed ? 'mdi-alert-circle-outline' : 'mdi-check-circle-outline'"
+                    aria-hidden="true"
+                  ></i>
+                  <strong>{{ cacheClearMessage }}</strong>
+                </div>
+                <ul v-if="cacheClearItems.length">
+                  <li v-for="item in cacheClearItems" :key="item.cacheKey">
+                    <span>{{ item.label }}</span>
+                    <strong>{{ item.clearedCount }} 条</strong>
+                  </li>
+                </ul>
+              </div>
+              <div v-else class="cache-clear-empty">
+                <i class="mdi mdi-database-clock-outline"></i>
+                <span>等待执行缓存清理。</span>
+              </div>
+            </section>
           </template>
 
           <template v-else-if="activeSection === 'mail'">

web/src/views/scripts/SettingsView.js

@@ -1,5 +1,4 @@
 import HermesEmployeeSettingsPanel from '../HermesEmployeeSettingsPanel.vue'
-import AgentTraceCenterView from '../AgentTraceCenterView.vue'
 import LlmSettingsPanel from '../LlmSettingsPanel.vue'
 import LogDetailView from '../LogDetailView.vue'
 import LogsView from '../LogsView.vue'
@@ -10,7 +9,6 @@ import { useSettings } from '../../composables/useSettings.js'
 export default {
   name: 'SettingsView',
   components: {
-    AgentTraceCenterView,
     HermesEmployeeSettingsPanel,
     EnterpriseSelect,
     LlmSettingsPanel,

web/src/views/scripts/travelReimbursementAttachmentModel.js

@@ -4,6 +4,12 @@ import {
   resolveExpenseTypeCode
 } from './travelReimbursementReviewModel.js'
 import { normalizeExpenseQueryPayload } from './travelReimbursementExpenseQueryModel.js'
+import {
+  inferPreviewKindFromFile,
+  isTemporaryPreviewUrl as isTemporaryDocumentPreviewUrl,
+  resolveDocumentPreviewAsset,
+  resolveDocumentPreviewKind as resolveUnifiedDocumentPreviewKind
+} from '../../utils/documentPreviewAssets.js'
 
 const SCENARIO_LABELS = {
   expense: '报销',
@@ -404,15 +410,7 @@ export function mergeUploadOcrDocuments(existingDocuments, incomingDocuments) {
 }
 
 export function inferPreviewKind(file) {
-  const mediaType = String(file?.type || '').toLowerCase()
+  return inferPreviewKindFromFile(file)
-  const filename = String(file?.name || '').toLowerCase()
-  if (mediaType.startsWith('image/') || /\.(png|jpg|jpeg|webp|bmp)$/i.test(filename)) {
-    return 'image'
-  }
-  if (mediaType.includes('pdf') || /\.pdf$/i.test(filename)) {
-    return 'pdf'
-  }
-  return 'file'
 }
 
 export function buildFilePreviews(files, previewRegistry) {
@@ -449,7 +447,7 @@ export function resolveDocumentPreview(filePreviews, filename) {
 }
 
 export function isTemporaryPreviewUrl(url) {
-  return String(url || '').trim().toLowerCase().startsWith('blob:')
+  return isTemporaryDocumentPreviewUrl(url)
 }
 
 export function buildFileIdentity(file) {
@@ -526,45 +524,35 @@ export function filterPersistableFilePreviews(filePreviews) {
     })
 }
 
-function inferPreviewKindFromUrl(url) {
-  const normalized = String(url || '').trim().toLowerCase()
-  if (!normalized) return ''
-  if (normalized.startsWith('data:image/') || /\.(png|jpg|jpeg|webp|bmp)(?:[?#].*)?$/i.test(normalized)) {
-    return 'image'
-  }
-  if (normalized.startsWith('data:application/pdf') || /\.pdf(?:[?#].*)?$/i.test(normalized)) {
-    return 'pdf'
-  }
-  return ''
-}
-
 function resolveDocumentPreviewKind(item) {
-  const explicit = String(item?.preview_kind || '').trim()
+  return resolveUnifiedDocumentPreviewKind(item)
-  if (explicit) {
-    return explicit
-  }
-  return inferPreviewKindFromUrl(String(item?.preview_url || item?.preview_data_url || '').trim())
 }
 
 export function buildOcrFilePreviews(payload) {
   const documents = Array.isArray(payload?.documents) ? payload.documents : []
   return documents
-    .map((item) => ({
+    .map((item) => {
-      filename: String(item?.filename || '').trim(),
+      const asset = resolveDocumentPreviewAsset(item)
-      kind: resolveDocumentPreviewKind(item),
+      return {
-      url: String(item?.preview_url || item?.preview_data_url || '').trim()
+        filename: String(item?.filename || '').trim(),
-    }))
+        kind: asset?.kind || '',
+        url: asset?.url || ''
+      }
+    })
     .filter((item) => item.filename && item.kind === 'image' && item.url)
 }
 
 export function buildReviewFilePreviewsFromReviewPayload(reviewPayload) {
   const documents = Array.isArray(reviewPayload?.document_cards) ? reviewPayload.document_cards : []
   return documents
-    .map((item) => ({
+    .map((item) => {
-      filename: String(item?.filename || '').trim(),
+      const asset = resolveDocumentPreviewAsset(item)
-      kind: resolveDocumentPreviewKind(item),
+      return {
-      url: String(item?.preview_url || item?.preview_data_url || '').trim()
+        filename: String(item?.filename || '').trim(),
-    }))
+        kind: asset?.kind || '',
+        url: asset?.url || ''
+      }
+    })
     .filter((item) => item.filename && item.kind === 'image' && item.url)
 }
 

web/tests/attachment-association-confirmation.test.mjs

@@ -131,7 +131,7 @@ test('attachment upload association uses conversation selection instead of legac
   assert.doesNotMatch(submitComposerSource, /查询可关联草稿失败，已继续按新单据识别/)
   assert.match(
     submitDraftPreflightSource,
-    /const claims = await fetchExpenseClaims\(\)[\s\S]*const queryPayload = buildDraftAssociationQueryPayload\(claims\)[\s\S]*meta: \['等待选择关联单据'\][\s\S]*queryPayload/
+    /const claims = await fetchExpenseClaims\([^)]*\)[\s\S]*const queryPayload = buildDraftAssociationQueryPayload\(claims\)[\s\S]*meta: \['等待选择关联单据'\][\s\S]*queryPayload/
   )
   assert.match(submitDraftPreflightSource, /meta: \['单据查询失败'\][\s\S]*return \{ handled: true, value: null \}/)
   assert.match(
@@ -186,6 +186,26 @@ test('OCR preview builders keep hotel receipt image previews when preview kind i
   assert.deepEqual(reviewPreviews, [{ filename: 'hotel.png', kind: 'image', url: dataUrl }])
 })
 
+test('OCR preview builders reuse receipt folder image preview endpoints', () => {
+  const ocrPreviews = buildOcrFilePreviews({
+    documents: [
+      {
+        filename: '2月23 上海-武汉.pdf',
+        preview_kind: 'image',
+        receipt_preview_url: '/receipt-folder/receipt-train-1/preview'
+      }
+    ]
+  })
+
+  assert.deepEqual(ocrPreviews, [
+    {
+      filename: '2月23 上海-武汉.pdf',
+      kind: 'image',
+      url: '/receipt-folder/receipt-train-1/preview'
+    }
+  ])
+})
+
 test('OCR receipt folder ids are kept for final draft attachment association', () => {
   const files = [
     { name: 'invoice.png' },

web/tests/receipt-folder-view.test.mjs

@@ -62,6 +62,15 @@ function testReceiptFolderViewSurface() {
   assert.doesNotMatch(view, /const claims = await fetchExpenseClaims\(\)/)
 }
 
+function testReceiptPreviewKindFollowsReturnedBlobType() {
+  const view = readProjectFile('web/src/views/ReceiptFolderView.vue')
+
+  assert.match(view, /import \{ inferPreviewKindFromBlob \} from '\.\.\/utils\/documentPreviewAssets\.js'/)
+  assert.doesNotMatch(view, /function inferPreviewKindFromBlob\(blob\)/)
+  assert.match(view, /const resolvedPreviewKind = inferPreviewKindFromBlob\(blob\)/)
+  assert.match(view, /preview_kind: resolvedPreviewKind/)
+}
+
 function testReceiptFolderServiceContract() {
   const service = readProjectFile('web/src/services/receiptFolder.js')
   const ocrService = readProjectFile('web/src/services/ocr.js')
@@ -180,6 +189,7 @@ function testAssistantUnlinkedReceiptPrompt() {
 
 function run() {
   testReceiptFolderViewSurface()
+  testReceiptPreviewKindFollowsReturnedBlobType()
   testReceiptFolderServiceContract()
   testAppShellWiresReceiptFolder()
   testSharedDocumentListStyleReuse()

web/tests/settings-cache-management-section.test.mjs

@@ -0,0 +1,39 @@
+import assert from 'node:assert/strict'
+import test from 'node:test'
+import { readFileSync } from 'node:fs'
+
+const settingsModel = readFileSync(new URL('../src/utils/settingsModelHelper.js', import.meta.url), 'utf8')
+const settingsService = readFileSync(new URL('../src/services/settings.js', import.meta.url), 'utf8')
+const settingsScript = readFileSync(new URL('../src/views/scripts/SettingsView.js', import.meta.url), 'utf8')
+const settingsView = readFileSync(new URL('../src/views/SettingsView.vue', import.meta.url), 'utf8')
+const useSettings = readFileSync(new URL('../src/composables/useSettings.js', import.meta.url), 'utf8')
+
+test('system settings replace Agent Trace with cache management', () => {
+  assert.match(settingsModel, /id:\s*'cacheManagement'[\s\S]*label:\s*'缓存管理'/)
+  assert.doesNotMatch(settingsModel, /id:\s*'agentTraces'/)
+  assert.doesNotMatch(settingsScript, /AgentTraceCenterView/)
+  assert.match(settingsView, /activeSection === 'cacheManagement'/)
+  assert.match(settingsView, /一键清理缓存/)
+})
+
+test('cache management action calls the settings clear-cache endpoint', () => {
+  assert.match(settingsService, /export function clearSystemCaches/)
+  assert.match(settingsService, /\/settings\/cache\/clear/)
+  assert.match(useSettings, /clearSystemCaches/)
+  assert.match(settingsView, /@click="clearAllCaches"/)
+})
+
+test('cache management section uses an enterprise maintenance layout', () => {
+  assert.match(settingsView, /class="settings-card cache-management-card"/)
+  assert.match(settingsView, /class="card-title-with-icon"/)
+  assert.match(settingsView, /class="cache-management-hero-metrics"/)
+  assert.match(settingsView, /class="cache-scope-grid"/)
+  assert.match(settingsView, /OCR 识别结果/)
+  assert.match(settingsView, /模型失败冷却/)
+  assert.match(settingsView, /知识库本地索引/)
+  assert.match(settingsView, /不会删除源文件、业务单据和系统日志/)
+  assert.match(settingsView, /:class="\{ 'is-error': cacheClearFailed \}"/)
+  assert.match(useSettings, /const cacheClearFailed = ref\(false\)/)
+  assert.match(useSettings, /normalizeCacheClearErrorMessage/)
+  assert.doesNotMatch(settingsView, />\\s*Not Found\\s*</)
+})

web/tests/settings-llm-section.test.mjs

@@ -1,17 +1,18 @@
 import assert from 'node:assert/strict'
 import { readFileSync } from 'node:fs'
 
-const settingsScript = readFileSync(new URL('../src/views/scripts/SettingsView.js', import.meta.url), 'utf8')
+const settingsModel = readFileSync(new URL('../src/utils/settingsModelHelper.js', import.meta.url), 'utf8')
 const settingsView = readFileSync(new URL('../src/views/SettingsView.vue', import.meta.url), 'utf8')
+const llmSettingsPanel = readFileSync(new URL('../src/views/LlmSettingsPanel.vue', import.meta.url), 'utf8')
 
 function testLlmSectionReplacesVlmWithReranker() {
   assert.doesNotMatch(settingsView, /VLM 模型/)
-  assert.match(settingsView, /Reranker 模型配置/)
+  assert.match(llmSettingsPanel, /Reranker 模型配置/)
-  assert.match(settingsScript, /rerankerProvider/)
+  assert.match(settingsModel, /rerankerProvider/)
 }
 
 function testRerankerCardRendersAfterEmbeddingCard() {
-  assert.match(settingsView, /Embedding 模型配置[\s\S]*Reranker 模型配置/)
+  assert.match(llmSettingsPanel, /Embedding 模型配置[\s\S]*Reranker 模型配置/)
 }
 
 function run() {

web/tests/settings-rendering-section.test.mjs

@@ -1,13 +1,13 @@
 import assert from 'node:assert/strict'
 import { readFileSync } from 'node:fs'
 
-const settingsScript = readFileSync(new URL('../src/views/scripts/SettingsView.js', import.meta.url), 'utf8')
+const settingsModel = readFileSync(new URL('../src/utils/settingsModelHelper.js', import.meta.url), 'utf8')
 const settingsView = readFileSync(new URL('../src/views/SettingsView.vue', import.meta.url), 'utf8')
 const settingsStyles = readFileSync(new URL('../src/assets/styles/views/settings-view.css', import.meta.url), 'utf8')
 
 function testRenderingSectionUsesConciseToolbarTitle() {
-  assert.match(settingsScript, /title:\s*'文件渲染'/)
+  assert.match(settingsModel, /title:\s*'文件渲染'/)
-  assert.doesNotMatch(settingsScript, /title:\s*'ONLYOFFICE 文件渲染配置'/)
+  assert.doesNotMatch(settingsModel, /title:\s*'ONLYOFFICE 文件渲染配置'/)
 }
 
 function testRenderingCardRemovesDuplicatedDescription() {

web/tests/workbench-ai-composer-components.test.mjs

@@ -3,6 +3,8 @@ import { readFileSync } from 'node:fs'
 import test from 'node:test'
 import { fileURLToPath } from 'node:url'
 
+import { buildSelectedFileCards } from '../src/composables/workbenchAiMode/workbenchAiComposerModel.js'
+
 function readSource(path) {
   return readFileSync(fileURLToPath(new URL(path, import.meta.url)), 'utf8')
 }
@@ -49,6 +51,31 @@ test('shared workbench file strip preserves OCR status badges', () => {
   assert.match(fileStripComponent, /:title="file\.ocrState\.title \|\| file\.ocrState\.label"/)
 })
 
+test('shared workbench file strip uses recognized image preview metadata over raw PDF type', () => {
+  const [card] = buildSelectedFileCards([
+    {
+      name: '2月23 上海-武汉.pdf',
+      type: 'application/pdf',
+      size: 24940,
+      lastModified: 1760000000000
+    }
+  ], () => ({
+    status: 'recognized',
+    document: {
+      preview_kind: 'image',
+      receipt_preview_url: '/receipt-folder/receipt-train-1/preview'
+    }
+  }))
+
+  assert.equal(card.tone, 'image')
+  assert.equal(card.icon, 'mdi mdi-file-image-outline')
+  assert.deepEqual(card.previewAsset, {
+    kind: 'image',
+    url: '/receipt-folder/receipt-train-1/preview',
+    source: 'receipt'
+  })
+})
+
 test('AI mode primes attachment OCR synchronously after file selection', () => {
   assert.match(
     filePreviewRuntime,