Bump logz dependency from v0.9.0 to v1.0.1 and update go directive from
1.25 to 1.26. API committed as stable; no code changes.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Document all four middleware functions (Recover, RequestID, RequestLogger, CORS),
the Logger interface, StatusRecorder, recommended middleware order, and install
instructions.