feat(skills): Scheduler Bot Phase 2 — dedicated bot /queue + hourly digest (TDPLAN-0008)
- SchedulerBot(BaseBot): rejects free-text (NO tmux/Claude spawn), /queue shells 'drone @daemon queue --json', hourly digest thread, chunked output
- base_bot __main__: _BOT_CLASSES maps bot_id->SchedulerBot for systemd launch; passes config chat_id for digest target
- bot registered (telegram-bot@scheduler), systemd unit installed (NOT started)
- 26 new tests (519 telegram / 252 skills green), seedgo 99%
fix(daemon): queue --json emits valid JSON at module level — flatten prompt_preview (collapse newlines) + soft_wrap/markup off. Verified valid via 'python -m'. NOTE: the drone router still re-wraps sub-command stdout at width 80, corrupting machine --json for ALL consumers routed through drone (separate @drone core bug; skills mitigates with strict=False JSON parse).
AIOSAI
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