feat(frontend): Added options for modifying and deleting transactions in the UI

7project/frontend/src/api.ts

@@ -19,6 +19,17 @@ export type Transaction = {
   date?: string | null; // ISO date (YYYY-MM-DD)
 };
 
+export async function deleteTransaction(id: number): Promise<void> {
+  const res = await fetch(`${getBaseUrl()}/transactions/${id}/delete`, {
+    method: 'DELETE',
+    headers: getHeaders('none'),
+  });
+  if (!res.ok) {
+    const text = await res.text();
+    throw new Error(text || 'Failed to delete transaction');
+  }
+}
+
 function getBaseUrl() {
   const base = BACKEND_URL?.replace(/\/$/, '') || '';
   return base || '';