JSON tag on the anonymous struct inside MarshalJSON corrected from
`json:"platformCode,omitempty"` to `json:"platform_code,omitempty"` to
match the OpenAPI spec snake_case convention. All error responses that
serialize *Err directly now emit "platform_code" instead of "platformCode".
PR.md added to .gitignore.
Reviewed-on: #3
Co-authored-by: Rene Nochebuena Guerrero <rene@nochebuena.dev>
Co-committed-by: Rene Nochebuena Guerrero <rene@nochebuena.dev>
Add Unauthorized and PermissionDenied convenience constructors to complete the
set of the five most-used error codes (InvalidInput, NotFound, Internal,
Unauthorized, PermissionDenied). All roadmap items from v0.9.0 resolved.
API committed as stable.
Rene Nochebuena
