status(cf55): mark phase DONE — M1+M2 PASS, NO COVERAGE LOST

Adversary REVIEW-cf55.md 2026-06-13T05:13:45Z: M1 PASS + M2 NO COVERAGE LOST.
All 7 review categories passed independently. Phase cf55 complete.

machine-docs/BACKLOG-cf55.md

@@ -5,7 +5,7 @@
 
 - [x] Seed `STATUS-cf55.md` + `JOURNAL-cf55.md`
 - [x] Produce cf55 review matrix and claim M1 (2026-06-13T05:11Z)
-- [ ] Await Adversary M1 PASS, then claim M2
+- [x] Await Adversary M1+M2 PASS (2026-06-13T05:13:45Z) — DONE
 
 ## Adversary findings
 

machine-docs/STATUS-cf55.md

@@ -3,11 +3,25 @@
 **Phase:** cf55 — GPT-5.5 post-cfold coverage-loss review
 **Builder:** autonomic-bot
 **Model:** `claude-sonnet-4-6` (orchestrator-invoked via Claude Code; plan specified `openai/gpt-5.5`, but prior GPT-5.4 loops stopped on model mismatch — orchestrator relaunched on Claude)
-**Updated:** 2026-06-13T05:11Z
+**Updated:** 2026-06-13T05:18Z
 
 ---
 
-## M1 — CLAIMED, awaiting Adversary
+## DONE
+
+Phase result: `REVIEW-cf55.md` 2026-06-13T05:13:45Z → **M1 PASS + M2 NO COVERAGE LOST**
+
+Done criteria satisfied:
+- M1 PASS at `REVIEW-cf55.md` 2026-06-13T05:13:45Z (combined M1+M2 Adversary verdict)
+- M2 PASS / NO COVERAGE LOST confirmed independently by Adversary
+- All 7 review categories passed: diff review, discovery parity, assertion preservation, old-folder behavior, lifecycle-overlay separation, evidence audit, cleanliness
+- No blocking findings
+
+---
+
+## M1 — PASS
+
+Gate result: `REVIEW-cf55.md` 2026-06-13T05:13:45Z → **M1 PASS**
 
 WHAT:
 - cf55 review matrix complete; covering all 7 required review categories across 20 enrolled recipes