docs(13-04): complete plan — visual verification approved, phase 13 done

- Task 3 visual verification approved by user
- SUMMARY.md updated to reflect all 3 tasks complete
- STATE.md updated: phase 13 complete, 100% progress
- ROADMAP.md updated: phase 13 all 4 plans complete

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.planning/STATE.md

@@ -3,15 +3,15 @@ gsd_state_version: 1.0
 milestone: v1.3
 milestone_name: Backend Expansion
 status: completed
-stopped_at: Completed 13-04-PLAN.md (pending human checkpoint at Task 3)
-last_updated: "2026-04-01T14:59:25.747Z"
+stopped_at: Completed 13-04-PLAN.md
+last_updated: "2026-04-01T15:27:20.817Z"
 last_activity: 2026-04-01 — Phase 13 plan 01 complete (REMOTE-01, REMOTE-02, REMOTE-06 satisfied)
 progress:
   total_phases: 6
   completed_phases: 6
   total_plans: 18
   completed_plans: 18
-  percent: 83
+  percent: 100
 ---
 
 # Project State
@@ -25,12 +25,12 @@ See: .planning/PROJECT.md (updated 2026-03-31)
 
 ## Current Position
 
-Phase: 13 of 13 (Add Remaining RClone Remotes) — In Progress
-Plan: 13-01 (complete)
-Status: Phase 13 plan 01 complete — registry refactor and 18-backend expansion done
-Last activity: 2026-04-01 — Phase 13 plan 01 complete (REMOTE-01, REMOTE-02, REMOTE-06 satisfied)
+Phase: 13 of 13 (Add Remaining RClone Remotes) — Complete
+Plan: 13-04 (complete — all 4 plans complete)
+Status: Phase 13 complete — all 18 backends fully integrated end-to-end, user visual verification approved
+Last activity: 2026-04-01 — Phase 13 plan 04 complete, visual verification approved (REMOTE-05 satisfied)
 
-Progress: [████████░░] 83% (v1.3)
+Progress: [██████████] 100% (v1.3)
 
 ## Accumulated Context
 
@@ -99,6 +99,6 @@ None yet.
 
 ## Session Continuity
 
-Last session: 2026-04-01T14:59:19.260Z
-Stopped at: Completed 13-04-PLAN.md (pending human checkpoint at Task 3)
+Last session: 2026-04-01T15:27:20.814Z
+Stopped at: Completed 13-04-PLAN.md
 Resume file: None