OperationError: The operation failed for an operation-specific reason

## Error

```
The operation failed for an operation-specific reason
```

## Stack trace

```
../app/javascript/components/dropdowns/Reputation.tsx:94 in Reputation
../node_modules/@sentry/react/src/errorboundary.tsx:101 in new ErrorBoundary
../node_modules/@tanstack/react-query/src/QueryClientProvider.tsx:29 in QueryClientProvider
```

## Tracking Details
- **Project**: exercism-js
- **Sentry**: [OperationError: The operation failed for an operation-specific reason](https://thalamus-ai.sentry.io/issues/133988000/)
- **Culprit**: id(app/javascript/components/dropdowns/useDropdown)
- **First seen:** Jul 13, 2026

Start at app/javascript/components/dropdowns/Reputation.tsx:94 and trace the dropdown flow through app/javascript/components/dropdowns/useDropdown. Review the linked Sentry report for the operation-specific failure and reproduce the error if possible. Done means the underlying failure is identified and the Reputation dropdown no longer raises this error.

Written by the indexing model from the issue text.