journal(lvl5): P4 wave 2 — PR-path lint fix proven, L4-blocked + 2×L5 PR proofs green, visuals verified

JOURNAL-lvl5.md

@@ -72,3 +72,22 @@
   (BRANCH only, never main), opened PR #4 (marked do-not-merge throwaway).
 - !testme posted (comments 14326/14327/14328) on custom-html#4, immich#2, plausible#3 →
   bridge-triggered builds 400/401/402 (drone path ×3). Awaiting.
+
+## 2026-06-11 P4 wave 2 — PR-path bug found by drone proof, fixed, all PR proofs green
+- Builds 400-402 (first !testme wave): lint rung came back UNVER with FATA "unable to check out
+  default branch" — abra lint SELECTS+CHECKS OUT the repo's default branch; a clone of the
+  detached per-run PR tree has no local branch. Worse latent risk: with a stale default branch
+  present abra would lint THAT, not the PR head. Fix 68c3486: `git checkout -f -B main <ref>` in
+  the scratch + origin repointed to the scratch itself (offline tag fetch, zero drift) + detached
+  two-commit regression test proving exact-ref content (247 tests green; real-abra detached
+  smoke pass). Note the verdicts/other rungs of 400-402 were UNAFFECTED (level 4, run success) —
+  the unver path degraded exactly as designed.
+- Re-ran !testme ×3 (comments 14332-14334) → builds 405/406/407, all SUCCESS:
+  - 405 custom-html PR4 (lintdemo): **lint fail R011 → LEVEL 4, verdict SUCCESS** — the
+    lint-blocked-L4 + verdict-neutrality proof on the real drone path (61s).
+  - 406 immich PR2: **LEVEL 5** (199s, = shot-phase baseline). 407 plausible PR3: **LEVEL 5** (164s).
+- Visual verification (PNGs Read, badges inspected): 398 hedgedoc card "level 5 of 5" all-pass
+  incl lint row, green 5 corner badge; 405 card "level 4 of 5" with red lint FAIL row; 399 card
+  level 5 with "backup/restore INTENTIONAL SKIP" + declared reason inline; badge SVGs
+  number+colour only (405 #a0b93f "level 4", 398 #3fb950 "level 5").
+- Canaries 411 (bkp-bad) + 412 (rst-bad) + mumble cold 413 triggered.