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/ROADMAP.md

@@ -24,7 +24,7 @@ Full phase details: [.planning/milestones/v1.0-ROADMAP.md](milestones/v1.0-ROADM
 **Milestone Goal:** Ship all deferred tech debt and backlog features from v1.0 — scriptTargets filtering, UX consistency fixes, registry-driven backend list, 4 new backends, field validation, and contextual tooltips.
 
 - [x] **Phase 5: Tech Debt** - Fix all deferred v1.0 issues (scriptTargets filtering, Back button, registry-driven UI, dead export, test warnings) (completed 2026-03-30)
-- [ ] **Phase 6: New Backends** - Add OneDrive, SFTP, Google Cloud Storage, and Backblaze B2 to the backend registry and wizard
+- [x] **Phase 6: New Backends** - Add OneDrive, SFTP, Google Cloud Storage, and Backblaze B2 to the backend registry and wizard (completed 2026-03-31)
 - [ ] **Phase 7: Validation & UX Polish** - Add field-level format validation and contextual tooltips across all backends
 
 ## Phase Details
@@ -85,5 +85,5 @@ Plans:
 | 3. Wizard UI | v1.0 | 5/5 | Complete | 2026-03-27 |
 | 4. Review, Download & Security | v1.0 | 5/5 | Complete | 2026-03-27 |
 | 5. Tech Debt | 4/4 | Complete   | 2026-03-30 | - |
-| 6. New Backends | 3/4 | In Progress|  | - |
+| 6. New Backends | 4/4 | Complete   | 2026-03-31 | - |
 | 7. Validation & UX Polish | v1.1 | 0/TBD | Not started | - |

.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
+Last session: 2026-03-31T06:58:48.937Z
-Stopped at: Completed 06-new-backends 06-02-PLAN.md
+Stopped at: Completed 06-new-backends 06-03-PLAN.md
 Resume file: None

.planning/phases/06-new-backends/06-03-SUMMARY.md

@@ -0,0 +1,112 @@
+---
+phase: 06-new-backends
+plan: "03"
+subsystem: ui
+tags: [react, wizard, rclone, sftp, onedrive, gcs, b2, vitest]
+
+# Dependency graph
+requires:
+  - phase: 06-new-backends/06-01
+    provides: OneDrive, GCS, B2 registry entries and schemas
+  - phase: 06-new-backends/06-02
+    provides: SFTP registry entry, SftpAuthToggle component, RCLONE_TYPE_MAP and BACKEND_SCHEMAS extended for all 7 backends
+
+provides:
+  - RemoteConfigStep.tsx extended to handle all 7 BackendType values
+  - SFTP branch with SftpAuthToggle (CSS-hidden password/private-key toggle)
+  - OneDrive/GCS/B2 rendered via registry loop (no custom branch needed)
+  - All four new backends visually verified in wizard UI by user
+
+affects:
+  - 07-validation-ux — RemoteConfigStep is the primary config form; any field-level validation work targets these same fields
+
+# Tech tracking
+tech-stack:
+  added: []
+  patterns:
+    - Three-branch JSX ternary in RemoteConfigStep (azureblob → sftp → registry loop)
+    - Auth toggle subcomponent pattern (SftpAuthToggle mirrors AzureAuthToggle)
+
+key-files:
+  created: []
+  modified:
+    - src/components/wizard/RemoteConfigStep.tsx
+
+key-decisions:
+  - "Three-branch ternary: azureblob (AzureAuthToggle), sftp (SftpAuthToggle), all others (registry loop) — minimal custom branching, maximal registry reuse"
+  - "OneDrive/GCS/B2 render entirely via registry loop with zero custom JSX branches — registry is the single source of truth"
+
+patterns-established:
+  - "New auth-toggle pattern: import toggle component, add named branch in ternary, render host/user via FieldRenderer then toggle for pass/key fields"
+  - "Registry-loop default: any new backend that doesn't need a custom auth toggle is automatically handled by the else branch"
+
+requirements-completed:
+  - BACK-01
+  - BACK-02
+  - BACK-03
+  - BACK-04
+
+# Metrics
+duration: ~10min
+completed: 2026-03-30
+---
+
+# Phase 06 Plan 03: New Backends UI Wiring Summary
+
+**RemoteConfigStep extended to all 7 backends via three-branch ternary — SFTP uses SftpAuthToggle, OneDrive/GCS/B2 render via registry loop, human-verified in running app**
+
+## Performance
+
+- **Duration:** ~10 min
+- **Started:** 2026-03-30T16:15:00Z
+- **Completed:** 2026-03-30T16:25:00Z
+- **Tasks:** 2 (1 auto + 1 human-verify)
+- **Files modified:** 1
+
+## Accomplishments
+
+- Extended `backendLabel` record to cover all 7 BackendType values (onedrive, sftp, gcs, b2 added)
+- Added SFTP branch in JSX ternary: renders host + user via FieldRenderer, then SftpAuthToggle for pass/key_pem toggle
+- OneDrive, GCS, and B2 render through the existing registry loop — no new custom branches
+- Full Vitest suite green, zero TypeScript errors confirmed
+- All four new backends visually verified in the wizard UI by the user
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **Task 1: Extend RemoteConfigStep.tsx — backendLabel + sftp branch + all four new backends** - `09adff0` (feat)
+2. **Task 2: Human verify all four new backends in the wizard UI** - human-approved (no code commit)
+
+**Plan metadata:** (this docs commit — see below)
+
+## Files Created/Modified
+
+- `src/components/wizard/RemoteConfigStep.tsx` - Extended to handle all 7 backends; SFTP branch with SftpAuthToggle; backendLabel exhaustive over all BackendType values
+
+## Decisions Made
+
+- Three-branch ternary (azureblob / sftp / else) keeps custom logic minimal: only backends with non-standard auth flows get their own branch
+- OneDrive, GCS, and B2 required zero custom JSX because their fields are all standard input/password/select types fully covered by FieldRenderer and the registry loop
+
+## Deviations from Plan
+
+None - plan executed exactly as written.
+
+## Issues Encountered
+
+None.
+
+## User Setup Required
+
+None - no external service configuration required.
+
+## Next Phase Readiness
+
+- All 7 backends are now wired end-to-end: registry → schema → rclone-conf → wizard UI
+- Phase 7 (Validation & UX Polish) can target any field in any of the 7 backends — the UI layer is complete
+- No blockers for Phase 7
+
+---
+*Phase: 06-new-backends*
+*Completed: 2026-03-30*