feat: add domain management functionality with CRUD operations and integrate into UI

frontend/src/api/domains.ts

@@ -0,0 +1,22 @@
+import client from './client'
+
+export interface Domain {
+  id: number
+  uuid: string
+  name: string
+  created_at: string
+}
+
+export const getDomains = async (): Promise<Domain[]> => {
+  const { data } = await client.get<Domain[]>('/domains')
+  return data
+}
+
+export const createDomain = async (name: string): Promise<Domain> => {
+  const { data } = await client.post<Domain>('/domains', { name })
+  return data
+}
+
+export const deleteDomain = async (uuid: string): Promise<void> => {
+  await client.delete(`/domains/${uuid}`)
+}