Get Error Catalog
Return the full error action-item catalog for client-side error surfacing.
Resolution a client should apply: look up codes by its specific error
identifier, fall back to categories by the error’s category, then
default. The payload is small and slow-changing — cache it and re-fetch
when version changes.
Authorizations
Enter your MeshAPI key (rsk_...) — sent as Authorization: Bearer <key>.
Response
Successful Response
Cache key / ETag — changes when the catalog changes.
Per-code copy, keyed by the specific identifier a client has (the semantic provider_code when present, else the top-level error code).
Per-category fallback copy + badge label, used when no code matches.
Last-resort copy when neither code nor category matches.