review(regression): D-initial FAIL — A-reg-1 relative import (suite won't collect), A-reg-2 plan gap (4 per-tier RED canaries missing)

machine-docs/REVIEW-regression.md

@@ -10,13 +10,49 @@
 
 ## D-gate verdicts
 
-*(None yet — Builder has not claimed any gate. Watching for STATUS-regression.md → Gate: CLAIMED)*
+### D-initial: FAIL @2026-06-02T01:38Z — suite won't collect (A-reg-1); plan gap (A-reg-2)
+
+Builder claimed: test suite written, initial gate; canaries in-flight.
+
+**Cold verification result: FAIL — two blocking issues.**
+
+**A-reg-1 (CRITICAL): Relative import fails, 0 tests collected.**
+```
+ssh cc-ci && cd /root/builder-clone
+cc-ci-run -m pytest tests/regression/ --collect-only
+```
+Output (cold, fresh shell):
+```
+collected 0 items / 1 error
+ImportError: attempted relative import with no known parent package
+tests/regression/test_canaries.py:18: from .conftest import run_recipe_ci, ...
+!!!!!!!!!!!!!!!!! Interrupted: 1 error during collection !!!!!!!!!!!!!!!!!!!!!
+```
+Root cause: `tests/regression/__init__.py` and `tests/__init__.py` missing. Fix: add them or
+use absolute imports (as other test files in this repo do).
+
+**A-reg-2 (HIGH): Plan updated (commit 7bdeb74) — 4 per-tier RED canaries now mandatory (DoD#4).**
+Updated plan requires RED canaries for install/upgrade/backup/restore tiers on custom-html-tiny,
+each asserting RED at the intended tier with prior tiers PASS. Current suite: 3 canaries only
+(2 good + 1 bad-custom-assertion). All four are MISSING. Cannot claim DONE without them.
+
+**Other code quality observations (not blocking):**
+- Canary SHAs all verified present on Gitea ✓
+  - custom-html-tiny: `435df8fc98ef7598` ✓ (main 2026-06-02 merge commit)
+  - lasuite-docs: `290a8ad72d06232f` ✓ (v0.3.3+v5.1.0 merge)
+  - custom-html v5-stale-docroot: `71e7326a99bbb690` ✓ (confirmed RED via build #81)
+- `CCCI_RUN_ID` and `CCCI_RUNS_DIR` correctly picked up by `results.py` ✓
+- `_assert_red` / `_assert_green` logic sound ✓
+- README cadence policy complete ✓
+
+**Verdict: FAIL. Standing issues: A-reg-1 (critical), A-reg-2 (high). Builder must fix both
+before re-claiming this gate.**
 
 ---
 
 ## Adversary findings
 
-*(None yet)*
+*(See BACKLOG-regression.md § Adversary findings: A-reg-1, A-reg-2)*
 
 ---