fix: require explicit transport mode for applications

web/src/utils/expenseApplicationPreview.js

@@ -400,6 +400,22 @@ function normalizeTransportModeOption(value, fallback = '') {
   return APPLICATION_TRANSPORT_MODE_OPTIONS.includes(text) ? text : fallback
 }
 
+function resolveModelRefinedTransportMode(ontologyFields = {}, rawText = '', currentFields = {}) {
+  const currentTransportMode = isApplicationPreviewValueProvided(currentFields.transportMode)
+    ? String(currentFields.transportMode).trim()
+    : ''
+  const explicitTransportMode = resolveApplicationTransportMode(rawText)
+  if (!explicitTransportMode) {
+    return currentTransportMode
+  }
+
+  const ontologyTransportMode = normalizeTransportModeOption(ontologyFields.transportMode, '')
+  if (ontologyTransportMode && ontologyTransportMode === explicitTransportMode) {
+    return ontologyTransportMode
+  }
+  return currentTransportMode || explicitTransportMode
+}
+
 function normalizeAmountFromOntology(fields = {}, fallback = '') {
   const numericAmount = Number(fields.amount || 0)
   if (Number.isFinite(numericAmount) && numericAmount > 0) {
@@ -640,10 +656,7 @@ export function buildModelRefinedApplicationPreview(localPreview = {}, ontology
     location: resolveProvidedValue(ontologyFields.location, currentFields.location),
     reason: resolveProvidedValue(ontologyFields.reason, currentFields.reason),
     days: resolveProvidedValue(ontologyFields.days, currentFields.days),
-    transportMode: normalizeTransportModeOption(
+    transportMode: resolveModelRefinedTransportMode(ontologyFields, rawText, currentFields),
-      ontologyFields.transportMode,
-      currentFields.transportMode
-    ),
     amount: normalizeAmountFromOntology(ontologyFields, currentFields.amount),
     grade: resolveProvidedValue(currentFields.grade, resolveCurrentUserGrade(currentUser)),
     applicant: resolveProvidedValue(ontologyFields.applicant, currentFields.applicant),

web/tests/expense-application-fast-preview.test.mjs

@@ -366,6 +366,39 @@ test('application preview can be refined by ontology model extraction', () => {
   assert.equal(refinedPreview.fields.transportMode, '火车')
 })
 
+test('application preview ignores model-only transport mode guesses', () => {
+  const rawText = '\u7533\u8bf7 2026-05-25 \u81f3 2026-05-27 \u53bb\u4e0a\u6d77\u51fa\u5dee3\u5929\uff0c\u670d\u52a1\u9879\u76ee\u90e8\u7f72\uff0c\u9884\u8ba1\u8d39\u75281800\u5143'
+  const localPreview = buildLocalApplicationPreview(rawText, {
+    name: '\u674e\u6587\u9759',
+    grade: 'P5'
+  })
+  const refinedPreview = buildModelRefinedApplicationPreview(
+    localPreview,
+    {
+      parse_strategy: 'llm_primary',
+      entities: [
+        { type: 'expense_type', value: '\u5dee\u65c5\u8d39', normalized_value: 'travel' },
+        { type: 'location', value: '\u4e0a\u6d77', normalized_value: '\u4e0a\u6d77' },
+        { type: 'reason', value: '\u670d\u52a1\u9879\u76ee\u90e8\u7f72', normalized_value: '\u670d\u52a1\u9879\u76ee\u90e8\u7f72' },
+        { type: 'transport_mode', value: '\u706b\u8f66', normalized_value: '\u706b\u8f66' },
+        { type: 'amount', value: '1800\u5143', normalized_value: '1800' }
+      ],
+      time_range: {
+        start: '2026-05-25',
+        end: '2026-05-27'
+      },
+      missing_slots: []
+    },
+    rawText,
+    { name: '\u674e\u6587\u9759', grade: 'P5' }
+  )
+
+  assert.equal(localPreview.fields.transportMode, '')
+  assert.equal(refinedPreview.fields.transportMode, '')
+  assert.ok(refinedPreview.missingFields.includes('\u51fa\u884c\u65b9\u5f0f'))
+  assert.equal(refinedPreview.readyToSubmit, false)
+})
+
 test('application preview precomputes a date range from today when only days are provided', () => {
   const preview = buildLocalApplicationPreview(
     '去北京出差3天，支撑国网仿生产环境部署，飞机，预计费用12000元',