feat(parallel-coordination): evolution — Gitea comment-based task claiming for parallel agent execution
New rule:
- parallel-coordination.md — claim protocol, overlap check, claim release, deadlock prevention
Updated:
- orchestrator.md — Overlap Verification MANDATORY before parallel spawn
- capability-index.yaml — implementation_phase parallel group with claim_protocol
- gns-agent-protocol.md — task_claim and task_claim_release event types
- EVOLUTION_LOG.md — evolution entry #6
Fixes: parallel agents writing to same files, migration collisions, worktree merge conflicts.
No new agent, no new Docker service (per TCA rule).
ded8e3022d