nulnul harness 1.6.0

nulnul harness 1.6.0

This release adds one-generation bounded evolution episodes. A Coach may propose a small candidate set from a reproduced failure, but fixed budgets, archive deduplication, permission and HOLDOUT boundaries, deterministic evaluation, and an independent Gate own the decision. NO_PROMOTION remains a valid result.

The retrospective episode deduplicated a rejected mechanism and selected an already verified winner. A later live episode started from a new public-positioning failure: two unchanged champion checks each found seven violations, while one newly generated metadata candidate reduced the result to zero and stopped on SUCCESS within two model invocations. The claim is limited to that activation-metadata failure family; it is not open-ended, personal, cross-project, or harness-wide autonomous improvement.

The plugin remains skills-only with no server, daemon, recursive Coach, background loop, raw transcript store, new permission, or reused HOLDOUT. All 114 repository tests and the final 100/100 Release Gate pass. A post-publication fresh GitHub-marketplace-installed 1.6.0 adoption preserved two existing agent profiles, made zero protected writes, produced verified resumable state, and passed five executable checks; no 1.5.0 evidence was relabeled.