implement booking flow

apps/edr-freight-api/src/common/resolve-auth-user-id.ts

@@ -0,0 +1,12 @@
+import { UnauthorizedException } from '@nestjs/common';
+
+export type AuthUserPayload = { id?: string; sub?: string } | null | undefined;
+
+/** Resolve IAM user id from JWT payload attached by JwtGuard. */
+export function resolveAuthUserId(user: AuthUserPayload): string {
+  const id = user?.id ?? user?.sub;
+  if (!id) {
+    throw new UnauthorizedException('Authentication required');
+  }
+  return id;
+}