docs(27-00): complete wave 0 E2E scaffolding plan

- Create 27-00-SUMMARY.md with test changes documentation
- Update STATE.md: advance plan to 3/4, add decisions, update session
- Update ROADMAP.md: reflect 2/4 summaries complete for phase 27

.planning/STATE.md

@@ -3,14 +3,14 @@ gsd_state_version: 1.0
 milestone: v2.1
 milestone_name: Public Discovery
 status: executing
-stopped_at: Completed 27-02-PLAN.md
-last_updated: "2026-04-10T21:44:28.010Z"
+stopped_at: Completed 27-00-PLAN.md
+last_updated: "2026-04-10T21:44:51.557Z"
 last_activity: 2026-04-10
 progress:
   total_phases: 14
   completed_phases: 3
   total_plans: 11
-  completed_plans: 8
+  completed_plans: 9
   percent: 0
 ---
 
@@ -26,7 +26,7 @@ See: .planning/PROJECT.md (updated 2026-04-09)
 ## Current Position
 
 Phase: 27 (top-nav-restructure-and-search-bar-rethink) — EXECUTING
-Plan: 2 of 4
+Plan: 3 of 4
 Status: Ready to execute
 Last activity: 2026-04-10
 
@@ -74,6 +74,8 @@ v2.1 decisions:
 - [Phase 26-discovery-landing-page]: PublicSetupCard itemCount/creatorName fields are optional for backward compatibility with users/$userId usage
 - [Phase 26-discovery-landing-page]: Discovery sections hide entirely (return null) when not loading and data is empty — avoids empty grid layouts
 - [Phase 27]: Setups elevated to top-level /setups route; Collection page reduced to Gear and Planning tabs with .catch(gear) fallback for legacy URLs
+- [Phase 27]: Wave 0 tests use test.fixme for removed dashboard cards — preserves test intent for future reference
+- [Phase 27]: Old setups tab test replaced with fallback-to-gear assertion matching the Zod .catch('gear') behavior planned in Plans 01-03
 
 ### Pending Todos
 
@@ -85,6 +87,6 @@ None.
 
 ## Session Continuity
 
-Last session: 2026-04-10T21:44:28.007Z
-Stopped at: Completed 27-02-PLAN.md
+Last session: 2026-04-10T21:44:51.555Z
+Stopped at: Completed 27-00-PLAN.md
 Resume file: None