notification implemented

apps/admin/next.config.js

@@ -1,15 +1,32 @@
 /** @type {import('next').NextConfig} */
 const apiOrigin = (process.env.API_INTERNAL_URL ?? process.env.API_URL ?? 'http://localhost:4000').replace(/\/api\/v1\/?$/, '')
 const apiUrl = new URL(apiOrigin)
+const ADMIN_BASE_PATH = '/admin'
+
+function ensureAdminAssetPrefix(rawValue) {
+  if (!rawValue) return undefined
+
+  try {
+    const url = new URL(rawValue)
+    const pathname = url.pathname.replace(/\/$/, '')
+    if (!pathname.endsWith(ADMIN_BASE_PATH)) {
+      url.pathname = `${pathname}${ADMIN_BASE_PATH}`
+    }
+    return url.toString().replace(/\/$/, '')
+  } catch {
+    const trimmed = rawValue.replace(/\/$/, '')
+    return trimmed.endsWith(ADMIN_BASE_PATH) ? trimmed : `${trimmed}${ADMIN_BASE_PATH}`
+  }
+}
 
 // In Docker dev the admin app runs on port 3002 while the marketplace proxy
 // serves it from port 3000. When ADMIN_ASSET_PREFIX is set, Next emits
 // absolute chunk URLs so /admin pages load their JS/CSS and HMR directly from
 // port 3002, bypassing the proxy (which can't upgrade WebSocket connections).
-const assetPrefix = process.env.ADMIN_ASSET_PREFIX || undefined
+const assetPrefix = ensureAdminAssetPrefix(process.env.ADMIN_ASSET_PREFIX)
 
 const nextConfig = {
-  basePath: '/admin',
+  basePath: ADMIN_BASE_PATH,
   ...(assetPrefix ? { assetPrefix } : {}),
   images: {
     remotePatterns: [