Simplification pass after the audit

[Octember]

Review pass for simplicity on the files touched today.

• respondSoon/responding/respondAgain was a second copy of Debounced; replies is now a Debounced
• held() passes not(WANTED) into caughtUp instead of probing existence first; wanted() gone
• Codex.once takes the tier it needs; the timeout comes from policy; Tier is exported from policy
• Voice.begin(direct) resets and opens; open() gone
• tools resolve their singletons once per registrar instead of per call
• Roster loads itself and nameOf awaits it; main no longer sequences it
• Soul.refresh and Voice.reply no longer try/catch; a failed post reaches the model as the tool error and the journal via the tool-call log line
• triage/overheard replace listenToNoise/noise/judge

No schema change. Plain deploy.

🤖 Generated with Claude Code