release(v4.8.8): Issue #17 follow-up - archive the review reports and bump the lockstep version

Merge-workspace review loop (--all-reviewer): round 1 (@d198dd5) claude
agy PASS, grok codex NOT PASS (the same inherited WORKSPACE_ROOT in eleven
more modules; test_orc_onboard's import-time env); fixed in 8b47cc7.
Round 2 claude grok NOT PASS (test_o2_race_free_lock, test_o1_rebuttal
missed), agy codex PASS; fixed in ac48cb7. Round 3 (@ac48cb7) 4/4 PASS.
Full suite at ac48cb7 on macOS / Python 3.9 / herdr 0.9.3 with
WORKSPACE_ROOT set to an empty sentinel: 1751 passed / 0 failed / 38
skipped; the sentinel stayed empty and the main checkout's shim was not
touched.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VCgu9Fa9iT7TbJUSzdq4Ff

.agents/reports/reviewer-agy-01/report-21bc247f.identity.json

@@ -0,0 +1,14 @@
+{
+  "loop_id": "loop-20261008T133858Z-9e7f5b",
+  "base_sha": "6b00b6e06f55299cb60f156ccef09ede4bae5bdd",
+  "head_sha": "ac48cb78617af88584db529b5766acf02f4af73c",
+  "tree_sha": "b043034eda891bd83b547dcb34d7422a6977b89d",
+  "review_commit": "ac48cb78617af88584db529b5766acf02f4af73c",
+  "reviewer": "reviewer-agy-01",
+  "job_id": "21bc247f",
+  "verdict": "PASS",
+  "transport": "herdr",
+  "evidence": "review-tree",
+  "isolation": "worktree",
+  "verified_at": "2026-10-08T18:40:20Z"
+}