docs(archive): Lior preserve PR 3701

docs/pr-discussions/PR-3701-shard-tick-2026-05-16t03-10z-baseline-mechanism-resolves-imm.md

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+---
+pr_number: 3701
+title: "shard(tick): 2026-05-16T03:10Z \u2014 baseline mechanism resolves immutability question (PR #3699)"
+author: "AceHack"
+state: "MERGED"
+created_at: "2026-05-16T03:14:58Z"
+merged_at: "2026-05-16T03:16:50Z"
+closed_at: "2026-05-16T03:16:50Z"
+head_ref: "shard/tick-0310z-otto-cli-2026-05-16"
+base_ref: "main"
+archived_at: "2026-05-16T03:20:05Z"
+archive_tool: "tools/pr-preservation/archive-pr.ts"
+---
+
+# PR #3701: shard(tick): 2026-05-16T03:10Z — baseline mechanism resolves immutability question (PR #3699)
+
+## PR description
+
+Tick 11: --baseline flag added to the tick-shard audit. Resolves the immutability question deferred since tick 8 by choosing grandfather mechanism (option D) — don't edit shards; track baseline; new violations still fail --enforce.
+
+PR #3692 merged 03:08:39Z and raced my baseline-feature push by ~6s; recovered via cherry-pick onto fresh branch ([PR #3699](https://github.com/Lucent-Financial-Group/Zeta/pull/3699)).
+
+Audit lifecycle now at 7 steps (discovery → narrow-fix → scanner → filter → quality-r1 → quality-r2 → baseline). CI-gate wire-up is the next-tick candidate, unblocked.
+
+Co-Authored-By: Claude <noreply@anthropic.com>
+
+## Reviews
+
+### COMMENTED — @copilot-pull-request-reviewer (2026-05-16T03:17:32Z)
+
+## Pull request overview
+
+Adds a tick-history shard documenting the 2026-05-16T03:10Z baseline-mechanism work around the tick-shard relative-path audit.
+
+**Changes:**
+- Adds a new 0310Z tick shard.
+- Records the intended `--baseline` audit behavior and lifecycle status.
+- Captures follow-up CI-gate wiring candidates.
+
+## Review threads
+
+### Thread 1: docs/hygiene-history/ticks/2026/05/16/0310Z.md:35 (unresolved)
+
+**@copilot-pull-request-reviewer** (2026-05-16T03:17:32Z):
+
+P1: This shard says the baseline JSON file ships, but the file is not present in the reviewed tree (`tools/hygiene/audit-tick-shard-relative-paths.baseline.json` is missing). If this shard merges before the baseline-mechanism PR, the historical record and the next-tick command reference a non-existent artifact; either make this PR depend on/include that file or describe the baseline as pending.