Add structured error types with errors.Is/errors.As support#74

Merged

jonbodner merged 3 commits intomasterfrom

feature/sentinel-errors

Feb 23, 2026

Commits on Feb 23, 2026

Add structured error types with errors.Is/errors.As support

jonbodner
and
claude
committed
Refactor tests to use `errors.AsType` instead of `errors.As` for error extraction
jonbodner
committed
Mark item 9 (structured error types) as done in MODERNIZATION.md

jonbodner
and
claude
committed