keeper 354219033a feat: Add 'ensure' semantics to witness/refinery start commands ...

gt witness start and gt refinery start now detect zombie sessions
(tmux alive but Claude dead) and automatically kill and recreate them.

This makes the start commands idempotent:
- If no session exists → create new session
- If session exists and healthy → do nothing (already running)
- If session exists but zombie → kill and recreate

Previously users had to manually run stop then start, or use restart.

Closes: gt-ekc5u

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

2026-01-02 18:53:52 -08:00

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