chore: changes for deployment to get the pocketbase public url variable value

next.config.ts

@@ -1,8 +1,10 @@
 import type { NextConfig } from 'next';
 
-/* PocketBase origin — used to allowlist remote images.
- * PB_HOSTNAME and PB_PORT are server-only env vars; safe to read here. */
-const pbHostname = process.env.PB_HOSTNAME ?? '127.0.0.1';
+/* Public PocketBase host for the image optimizer allowlist.
+ * Derived from PB_PUBLIC_URL (e.g. https://cms.allmy.work) at BUILD time —
+ * remotePatterns is frozen into the build, so PB_PUBLIC_URL must be present
+ * during `next build` in CI (via build-arg), not just at runtime. */
+const pbPublicHost = process.env.PB_PUBLIC_URL ? new URL(process.env.PB_PUBLIC_URL).hostname : '127.0.0.1';
 
 const nextConfig: NextConfig = {
   output: 'standalone',
@@ -11,7 +13,7 @@ const nextConfig: NextConfig = {
     remotePatterns: [
       {
         protocol: 'https',
-        hostname: pbHostname,
+        hostname: pbPublicHost,
         pathname: '/api/files/**',
       },
     ],