atproto relay in zig zlay.waow.tech
relay zig atproto

clean up stale Evented-era comments across codebase master

now that Backend is Io.Threaded, remove references to cross-Io constraints, Evented fiber context requirements, and Uring thread warnings that no longer apply. the historical context is preserved in docs/evented-attempt.md and docs/notes.md. no behavioral changes — comments only. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>