feat: add enterprise identity and channel integrations

frontend/src/lib/api.ts

@@ -1,5 +1,9 @@
 const API_BASE_URL = import.meta.env.VITE_API_BASE_URL ?? '/api'
 
+export function apiUrl(path: string) {
+  return `${API_BASE_URL}${path}`
+}
+
 let csrfToken: string | null = null
 
 export class ApiError extends Error {
@@ -29,7 +33,7 @@ async function readError(response: Response) {
 
 async function getCsrfToken() {
   if (!csrfToken) {
-    const response = await fetch(`${API_BASE_URL}/accounts/auth/csrf`, {
+    const response = await fetch(apiUrl('/accounts/auth/csrf'), {
       credentials: 'include'
     })
     if (!response.ok) {
@@ -51,7 +55,7 @@ export async function apiRequest<T>(path: string, init?: RequestInit): Promise<T
     headers.set('x-csrftoken', await getCsrfToken())
   }
 
-  const response = await fetch(`${API_BASE_URL}${path}`, {
+  const response = await fetch(apiUrl(path), {
     ...init,
     credentials: 'include',
     headers