feat(expenses): show unified expense event timeline

web/src/services/expenseCases.js

@@ -0,0 +1,10 @@
+import { apiRequest } from './api.js'
+
+export function fetchExpenseCaseTimeline(claimId, options = {}) {
+  const normalizedClaimId = String(claimId || '').trim()
+  if (!normalizedClaimId) {
+    return Promise.resolve(null)
+  }
+
+  return apiRequest(`/expense-cases/by-claim/${encodeURIComponent(normalizedClaimId)}`, options)
+}