Phase 1 of dynamic priming subsystem:
1. PRIME.md provisioning for all workers (hq-5z76w, hq-ukjrr Part A)
- Added ProvisionPrimeMD to beads package with Gas Town context template
- Provision at rig level in AddRig() so all workers inherit it
- Added fallback provisioning in crew and polecat managers
- Created PRIME.md for existing rigs
2. Post-handoff detection to prevent handoff loop bug (hq-ukjrr Part B)
- Added FileHandoffMarker constant (.runtime/handoff_to_successor)
- gt handoff writes marker before respawn
- gt prime detects marker and outputs "HANDOFF COMPLETE" warning
- Marker cleared after detection to prevent duplicate warnings
3. Priming health checks for gt doctor (hq-5scnt)
- New priming_check.go validates priming subsystem configuration
- Checks: SessionStart hook, gt prime command, PRIME.md presence
- Warns if CLAUDE.md is too large (should be bootstrap pointer)
- Fixable: provisions missing PRIME.md files
This ensures crew workers get Gas Town context (GUPP, hooks, propulsion)
even if the gt prime hook fails, via bd prime fallback.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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