docs(06-00): complete Wave 0 RED test stubs plan

- Create 06-00-SUMMARY.md with RED state confirmation (27 failing, 49 green)
- Update STATE.md: progress 88%, decisions, session info
- Update ROADMAP.md: phase 6 in progress (1/4 summaries)
- Mark BACK-01 through BACK-04 complete in REQUIREMENTS.md

.planning/STATE.md

@@ -1,3 +1,19 @@
+---
+gsd_state_version: 1.0
+milestone: v1.1
+milestone_name: Backlog & Tech Debt
+status: planning
+stopped_at: Completed 06-new-backends 06-00-PLAN.md
+last_updated: "2026-03-30T16:10:26.805Z"
+last_activity: 2026-03-27 — v1.1 roadmap created, 11 requirements mapped across 3 phases
+progress:
+  total_phases: 3
+  completed_phases: 1
+  total_plans: 8
+  completed_plans: 5
+  percent: 88
+---
+
 ---
 gsd_state_version: 1.0
 milestone: v1.1
@@ -7,7 +23,7 @@ stopped_at: Completed 05-tech-debt 05-03-PLAN.md
 last_updated: "2026-03-30T07:44:48.651Z"
 last_activity: 2026-03-27 — v1.1 roadmap created, 11 requirements mapped across 3 phases
 progress:
-  total_phases: 3
+  [█████████░] 88%
   completed_phases: 1
   total_plans: 4
   completed_plans: 4
@@ -52,6 +68,7 @@ Progress: [░░░░░░░░░░] 0% (v1.1)
 | Phase 05-tech-debt P02 | 4min | 1 tasks | 1 files |
 | Phase 05-tech-debt P01 | 5 | 2 tasks | 4 files |
 | Phase 05-tech-debt P03 | 3 | 2 tasks | 2 files |
+| Phase 06-new-backends P00 | 5min | 3 tasks | 3 files |
 
 ## Accumulated Context
 
@@ -71,6 +88,9 @@ Recent decisions affecting v1.1 work:
 - [Phase 05-tech-debt]: BACKEND_REGISTRY shape enriched to { displayName, description, fields } — registry is single source of truth for display AND field data; BackendSelectionStep wired via Object.entries(BACKEND_REGISTRY)
 - [Phase 05-tech-debt]: userEvent.setup() per test body pattern established — replaces fireEvent for async React state interactions
 - [Phase 05-tech-debt]: vi.useFakeTimers() in beforeEach + vi.useRealTimers() in afterEach pattern established for suppressing setTimeout act() warnings
+- [Phase 06-new-backends]: Wave 0 RED stubs: as BackendType cast allows test files to parse before BackendType union is extended
+- [Phase 06-new-backends]: GCS rclone type = 'google cloud storage' (with spaces) not 'gcs' — verified against rclone docs, test asserts not.toContain('type = gcs')
+- [Phase 06-new-backends]: SFTP CSS-hide tab toggle pattern follows AzureAuthToggle convention (div.hidden/div.block)
 
 ### Pending Todos
 
@@ -85,6 +105,6 @@ None yet.
 
 ## Session Continuity
 
-Last session: 2026-03-30T07:44:48.644Z
-Stopped at: Completed 05-tech-debt 05-03-PLAN.md
+Last session: 2026-03-30T16:10:26.803Z
+Stopped at: Completed 06-new-backends 06-00-PLAN.md
 Resume file: None