status(1d): G2 Adversary PASS @2026-05-28 (DG4/DG4.1); .drone.yml STAGES -> full generic suite

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

machine-docs/BACKLOG-1d.md

@@ -22,7 +22,7 @@
 - [x] Proven green on backup-capable hedgedoc (full lifecycle, deploy-count=1, clean teardown).
 - [ ] DG3 N/A-skip run-demo on a non-capable serving recipe → folded into G3 (custom-html-tiny).
 
-### G2 — Layering + discovery + precedence (DG4, DG4.1) — CLAIMED, awaiting Adversary
+### G2 — Layering + discovery + precedence (DG4, DG4.1) — Adversary PASS @2026-05-28
 - [x] Migrated custom-html overlays to the assertion-only contract (override + extend + data-continuity).
 - [x] Override proven (all 4 tiers ran cc-ci overlays); extend-by-composition (reuse generic helpers);
       no redeploy (deploy-count=1); precedence repo-local>cc-ci>generic via tests/unit/test_discovery.py (5/5).