review(mirror): Ph1 PASS, Ph3 PASS, Ph2 PARTIAL FAIL (A-mirror-1 OPEN) @00:40Z

Ph1: 3 mirrors cold-verified — lasuite-drive/mailu/mumble all HTTP 200,
empty=false, default_branch=main, HEAD SHAs match upstream exactly.

Ph3: POLL_REPOS has 20 repos; all 9 new recipes present + all have tests/.

Ph2: tests authored (recipe_meta.py, test_health_check, test_branding, PARITY.md)
but builds #153/#154 predate authoring (2026-05-28 vs 2026-06-02). Plan requires
!testme green AFTER authoring. Filing A-mirror-1. Phase 4 deploy NOT blocked.

Ph4 operator deploy: OK to proceed. A-mirror-1 must close before Phase 5 DONE.

machine-docs/BACKLOG-mirror.md

@@ -39,5 +39,29 @@
 
 ## Adversary findings
 
-(none yet)
+### A-mirror-1 [adversary] hedgedoc !testme not verified post-authoring
+
+**Filed:** 2026-06-02T00:40Z
+**Status:** OPEN
+
+**Finding:** The plan (Phase 2) requires "verify it green via !testme before relying on it."
+The hedgedoc tests (test_health_check.py, test_branding.py) were committed to main at
+2026-06-02T00:25Z. Builds #153/#154 on hedgedoc PR#1 that PASSED were run on 2026-05-28
+(before the new tests existed). No !testme run has been done since the tests were authored.
+
+**Impact:** Phase 4 operator deploy is NOT blocked. Phase 5 hedgedoc !testme verification
+is blocked until A-mirror-1 is closed (Builder must first run !testme on hedgedoc PR after
+the new tests are committed, then report PASS; Adversary cold-verifies Drone result).
+
+**Repro:**
+```
+GET /repos/recipe-maintainers/hedgedoc/issues/1/comments
+→ builds #153 (2026-05-28T01:10Z) and #154 (2026-05-28T01:20Z) — both predate authoring
+git log --format="%ai %s" 242d56b → 2026-06-02 00:25:12 +0000
+```
+
+**Resolution:** Builder posts !testme on hedgedoc PR#1 (or any open hedgedoc PR) after
+this finding is filed, confirms the new tests run and PASS. Adversary re-verifies.
+
+- [ ] Resolved (Adversary re-test required)