chore(visual): gitignore snapshot baselines; sync workplan task IDs

Visual baselines are large binary test artifacts; keep them out of the repo.
They stay on disk locally (regenerate with `pnpm test:visual:update`); the
infra fixes that make rendering deterministic remain committed. Also folds in
the state_hub_task_id writeback from `make fix-consistency`.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

workplans/WHYNOT-WP-0001-statehub-bootstrap.md

@@ -9,6 +9,7 @@ owner: codex
 topic_slug: custodian
 created: "2026-06-22"
 updated: "2026-06-22"
+state_hub_workstream_id: "2a841f25-ee20-406d-9436-c2057545e05e"
 ---
 
 # Bootstrap State Hub integration
@@ -21,7 +22,7 @@ The neutral, mostly-black-and-white visual language for **whynot** — Tegwick's
 id: WHYNOT-WP-0001-T01
 status: done
 priority: high
-
+state_hub_task_id: "9a45dbdc-1c2c-4952-b021-38bac1759654"
 ```
 
 Result 2026-06-22: INTENT.md, SCOPE.md, AGENTS.md reviewed.
@@ -35,7 +36,7 @@ Replace generated placeholders with repo-specific facts where needed.
 id: WHYNOT-WP-0001-T02
 status: done
 priority: high
-
+state_hub_task_id: "52164a8c-cd8d-49b3-863e-2adfb23b3877"
 ```
 
 Result 2026-06-22: Stack commands already complete.
@@ -50,7 +51,7 @@ changes confidently.
 id: WHYNOT-WP-0001-T03
 status: done
 priority: medium
-
+state_hub_task_id: "93356eae-2099-4d32-b486-8d7886ac4e2d"
 ```
 
 Result 2026-06-22: WHYNOT-WP-0002 already exists (designbook stack adapters).

workplans/WHYNOT-WP-0002-designbook-stack-adapters.md

@@ -218,6 +218,7 @@ gate that confirms Lit actually matches the designbook appearance.
 id: WHYNOT-WP-0002-T11
 status: todo
 priority: medium
+state_hub_task_id: "7435338d-702a-43d7-9c86-49531fe0d8e4"
 ```
 
 Discovered 2026-06-26 while regenerating visual baselines after the T06 token