Implement package limit notification system

resources/js/admin/lib/apiError.ts

@@ -0,0 +1,15 @@
+export class ApiError extends Error {
+  constructor(
+    message: string,
+    public readonly status?: number,
+    public readonly code?: string,
+    public readonly meta?: Record<string, unknown>,
+  ) {
+    super(message);
+    this.name = 'ApiError';
+  }
+}
+
+export function isApiError(value: unknown): value is ApiError {
+  return value instanceof ApiError;
+}