feat(backend): migrate freelancer and portal runtimes

server/web/portal.ts

@@ -0,0 +1,15 @@
+import "server-only";
+
+import { domainActorFromSession } from "../auth/domain-actor";
+import { requireClientUser } from "../auth/session";
+import { getDomainService } from "../services/runtime";
+
+export async function requirePortalBackend() {
+  const context = await requireClientUser();
+
+  return {
+    context,
+    actor: domainActorFromSession(context),
+    service: getDomainService(),
+  };
+}