feat(web): add OCR service and update travel reimbursement view

- web/src/services/ocr.js: add OCR service API client
- web/src/views/scripts/TravelReimbursementCreateView.js: update travel form script with OCR integration

web/src/services/ocr.js

@@ -0,0 +1,14 @@
+import { apiRequest } from './api.js'
+
+export function recognizeOcrFiles(files) {
+  const formData = new FormData()
+  for (const file of files) {
+    formData.append('files', file)
+  }
+
+  return apiRequest('/ocr/recognize', {
+    method: 'POST',
+    body: formData,
+    contentType: null
+  })
+}

web/src/views/scripts/TravelReimbursementCreateView.js

@@ -1,6 +1,7 @@
 import { computed, nextTick, onMounted, ref } from 'vue'
 
 import { useSystemState } from '../../composables/useSystemState.js'
+import { recognizeOcrFiles } from '../../services/ocr.js'
 import { runOrchestrator } from '../../services/orchestrator.js'
 
 const DEFAULT_REQUEST = {
@@ -128,6 +129,26 @@ function buildMessageMeta(payload, fileNames = []) {
   return items
 }
 
+function normalizeOcrDocuments(payload) {
+  const documents = Array.isArray(payload?.documents) ? payload.documents : []
+  return documents.slice(0, 5).map((item) => ({
+    filename: item.filename,
+    summary: item.summary,
+    text: String(item.text || '').slice(0, 240),
+    avg_score: Number(item.avg_score || 0),
+    line_count: Number(item.line_count || 0),
+    warnings: Array.isArray(item.warnings) ? item.warnings : []
+  }))
+}
+
+function buildOcrSummary(payload) {
+  const parts = normalizeOcrDocuments(payload)
+    .map((item) => `${item.filename}：${item.summary || item.text}`)
+    .filter(Boolean)
+
+  return parts.join('；')
+}
+
 function buildWelcomeInsight(entrySource, linkedRequest) {
   return {
     intent: 'welcome',
@@ -360,7 +381,7 @@ export default {
       submitComposer()
     }
 
-    function buildBackendMessage(rawText, fileNames) {
+    function buildBackendMessage(rawText, fileNames, ocrSummary = '') {
       const parts = []
       const normalizedText = String(rawText || '').trim()
 
@@ -374,6 +395,10 @@ export default {
         parts.push(`附件名称：${fileNames.join('、')}`)
       }
 
+      if (ocrSummary) {
+        parts.push(`OCR摘要：${ocrSummary}`)
+      }
+
       if (props.entrySource === 'detail') {
         parts.push(`关联单号：${linkedRequest.value.id}`)
       }
@@ -389,7 +414,6 @@ export default {
       const fileNames = files.map((file) => file.name)
       const userText =
         rawText || `我上传了 ${fileNames.length} 份票据，请帮我识别并给出报销建议。`
-      const backendMessage = buildBackendMessage(rawText, fileNames)
 
       messages.value.push(createMessage('user', userText, fileNames))
 
@@ -409,6 +433,21 @@ export default {
 
       try {
         const user = currentUser.value || {}
+        let ocrPayload = null
+        let ocrSummary = ''
+        let ocrDocuments = []
+
+        if (files.length) {
+          try {
+            ocrPayload = await recognizeOcrFiles(files)
+            ocrSummary = buildOcrSummary(ocrPayload)
+            ocrDocuments = normalizeOcrDocuments(ocrPayload)
+          } catch (error) {
+            console.warn('OCR request failed:', error)
+          }
+        }
+
+        const backendMessage = buildBackendMessage(rawText, fileNames, ocrSummary)
         const payload = await runOrchestrator({
           source: 'user_message',
           user_id: user.username || user.name || 'anonymous',
@@ -421,7 +460,9 @@ export default {
             entry_source: props.entrySource,
             request_context: linkedRequest.value,
             attachment_names: fileNames,
-            attachment_count: fileNames.length
+            attachment_count: fileNames.length,
+            ocr_summary: ocrSummary,
+            ocr_documents: ocrDocuments
           }
         })