docs(06-03): complete new backends UI wiring plan

- SUMMARY.md: all 7 backends wired in RemoteConfigStep, human-verified
- STATE.md: progress updated to 100%, decision and metrics recorded
- ROADMAP.md: phase 6 marked Complete (4/4 plans)

.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 06-03-PLAN.md
+last_updated: "2026-03-31T06:58:48.939Z"
+last_activity: 2026-03-27 — v1.1 roadmap created, 11 requirements mapped across 3 phases
+progress:
+  total_phases: 3
+  completed_phases: 2
+  total_plans: 8
+  completed_plans: 8
+  percent: 100
+---
+
 ---
 gsd_state_version: 1.0
 milestone: v1.1
@@ -7,7 +23,7 @@ stopped_at: Completed 06-new-backends 06-02-PLAN.md
 last_updated: "2026-03-30T16:15:00Z"
 last_activity: 2026-03-27 — v1.1 roadmap created, 11 requirements mapped across 3 phases
 progress:
-  total_phases: 3
+  [██████████] 100%
   completed_phases: 1
   total_plans: 8
   completed_plans: 7
@@ -71,6 +87,7 @@ Progress: [░░░░░░░░░░] 0% (v1.1)
 | Phase 06-new-backends P00 | 5min | 3 tasks | 3 files |
 | Phase 06-new-backends P01 | 5min | 2 tasks | 3 files |
 | Phase 06-new-backends P02 | 4min | 2 tasks | 4 files |
+| Phase 06-new-backends P03 | 10min | 2 tasks | 1 files |
 
 ## Accumulated Context
 
@@ -97,6 +114,7 @@ Recent decisions affecting v1.1 work:
 - [Phase 06-new-backends]: OneDrive uses paste-based OAuth token (JSON token field), GCS uses service_account_credentials (paste JSON), B2 uses account + key — all follow stateless browser-paste pattern
 - [Phase 06-new-backends]: SftpAuthToggle follows AzureAuthToggle CSS-hidden pattern: both pass and key_pem always registered with react-hook-form, tab visibility via div.block/div.hidden
 - [Phase 06-new-backends]: RCLONE_TYPE_MAP and BACKEND_SCHEMAS extended for all 7 backends in plan 02 (not just sftp) to fix failing onedrive/gcs/b2 test assertions
+- [Phase 06-new-backends]: Three-branch ternary in RemoteConfigStep (azureblob/sftp/else) keeps custom logic minimal; OneDrive/GCS/B2 render entirely via registry loop
 
 ### Pending Todos
 
@@ -111,6 +129,6 @@ None yet.
 
 ## Session Continuity
 
-Last session: 2026-03-30T16:15:00Z
-Stopped at: Completed 06-new-backends 06-02-PLAN.md
+Last session: 2026-03-31T06:58:48.937Z
+Stopped at: Completed 06-new-backends 06-03-PLAN.md
 Resume file: None