Response.error(messages, status=400) builds a JSON error response in
Datasette's standard error format, alongside Response.json/html/text.
messages can be a single string or a list. All internal error response
construction now uses it - the private views.base._error() helper is
gone and the verbose Response.json(error_body(...), status=...) sites
are converted. error_body() remains for the cases that merge the error
keys into a larger payload (the JSON renderer, handle_exception and the
permission debug payload builders).
Since Response is public plugin API, plugins that build JSON endpoints
now have an obvious way to return errors in the canonical shape.
Documented in the internals documentation, including the guidance to
raise Forbidden/NotFound/BadRequest/DatasetteError instead when the
error should content-negotiate.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GrHZSypDfMnym1tM5XJAFZ
