Add a new 'prefix-mismatch' check to gt doctor that detects when the
prefix configured in rigs.json differs from what routes.jsonl actually
uses for a rig's beads.
This can happen when:
- deriveBeadsPrefix() generates a different prefix than what's in the DB
- Someone manually edited rigs.json with the wrong prefix
- Beads were initialized before auto-derive existed with a different prefix
The check is fixable: running 'gt doctor --fix' will update rigs.json
to match the actual prefixes from routes.jsonl.
Includes comprehensive tests for:
- No routes (nothing to check)
- No rigs.json (nothing to check)
- Matching prefixes (OK)
- Mismatched prefixes (Warning)
- Fix functionality
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
637df1d289