docs(05-01): complete registry enrichment plan

- 05-01-SUMMARY.md: BACKEND_REGISTRY enriched, BackendSelectionStep wired to registry, BackendFormValues removed
- STATE.md: progress updated, decision logged, session recorded
- ROADMAP.md: phase 5 plan progress updated (3/4 summaries)

.planning/ROADMAP.md

@@ -78,6 +78,6 @@ Plans:
 | 2. Generators | v1.0 | 4/4 | Complete | 2026-03-26 |
 | 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 | 2/4 | In Progress|  | - |
+| 5. Tech Debt | 3/4 | In Progress|  | - |
 | 6. New Backends | v1.1 | 0/TBD | Not started | - |
 | 7. Validation & UX Polish | v1.1 | 0/TBD | Not started | - |

.planning/STATE.md

@@ -3,14 +3,14 @@ gsd_state_version: 1.0
 milestone: v1.1
 milestone_name: Backlog & Tech Debt
 status: planning
-stopped_at: Completed 05-tech-debt 05-02-PLAN.md
+stopped_at: Completed 05-tech-debt 05-01-PLAN.md
-last_updated: "2026-03-30T07:38:40.209Z"
+last_updated: "2026-03-30T07:39:32.011Z"
 last_activity: 2026-03-27 — v1.1 roadmap created, 11 requirements mapped across 3 phases
 progress:
   total_phases: 3
   completed_phases: 0
   total_plans: 4
-  completed_plans: 2
+  completed_plans: 3
   percent: 0
 ---
 
@@ -50,6 +50,7 @@ Progress: [░░░░░░░░░░] 0% (v1.1)
 *Updated after each plan completion*
 | Phase 05-tech-debt P00 | 3 | 2 tasks | 2 files |
 | Phase 05-tech-debt P02 | 4min | 1 tasks | 1 files |
+| Phase 05-tech-debt P01 | 5 | 2 tasks | 4 files |
 
 ## Accumulated Context
 
@@ -66,6 +67,7 @@ Recent decisions affecting v1.1 work:
 - [Phase 05-tech-debt]: WizardConsumerSetup pattern: in-test React component dispatches SET_DEPLOYMENT via useEffect for state injection without changing production code
 - [Phase 05-tech-debt]: Unmount OutputBlocks entirely (conditional render with &&) not CSS hidden — avoids stale component state when toggling scriptTargets
 - [Phase 05-tech-debt]: Keep useMemo calls for all scripts even when OutputBlocks hidden — ZIP handler always needs the content for dynamic bundle building
+- [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)
 
 ### Pending Todos
 
@@ -80,6 +82,6 @@ None yet.
 
 ## Session Continuity
 
-Last session: 2026-03-30T07:38:40.203Z
+Last session: 2026-03-30T07:39:32.005Z
-Stopped at: Completed 05-tech-debt 05-02-PLAN.md
+Stopped at: Completed 05-tech-debt 05-01-PLAN.md
 Resume file: None

.planning/phases/05-tech-debt/05-01-SUMMARY.md

@@ -0,0 +1,102 @@
+---
+phase: 05-tech-debt
+plan: "01"
+subsystem: ui
+tags: [react, typescript, zod, registry, backend-selection]
+
+# Dependency graph
+requires:
+  - phase: 05-tech-debt
+    provides: Wave-0 TDD stubs for registry shape and consumer access patterns (05-00)
+provides:
+  - BACKEND_REGISTRY enriched with displayName, description, fields shape
+  - BackendSelectionStep driven by Object.entries(BACKEND_REGISTRY) — no hardcoded BACKENDS
+  - schemas/index.ts using .fields access
+  - RemoteConfigStep.tsx using .fields access
+  - Dead BackendFormValues<T> export removed from schemas/index.ts
+affects: [06-new-backends, phase-6, BackendSelectionStep, RemoteConfigStep, schemas]
+
+# Tech tracking
+tech-stack:
+  added: []
+  patterns:
+    - "Registry-driven UI: Object.entries(BACKEND_REGISTRY) replaces hardcoded arrays — adding a backend to registry auto-surfaces in UI with zero additional UI code"
+    - ".fields access: all consumers use BACKEND_REGISTRY[type].fields, not the registry entry directly"
+
+key-files:
+  created: []
+  modified:
+    - src/schemas/registry.ts
+    - src/schemas/index.ts
+    - src/components/wizard/RemoteConfigStep.tsx
+    - src/components/wizard/BackendSelectionStep.tsx
+
+key-decisions:
+  - "Registry shape change to { displayName, description, fields } makes the registry the single source of truth for both field definitions AND display metadata"
+  - "displayName and description strings preserved exactly as in the former BACKENDS const to keep test assertions green without changes"
+  - "BackendFormValues<T> removed — confirmed no consumers existed (tsc --noEmit: zero errors)"
+
+patterns-established:
+  - "Registry-driven card list: Object.entries(BACKEND_REGISTRY).map(([type, entry]) => <BackendCard ... />)"
+  - ".fields access pattern: BACKEND_REGISTRY[backendType].fields for all field iteration"
+
+requirements-completed: [TECH-03, TECH-04]
+
+# Metrics
+duration: 5min
+completed: 2026-03-30
+---
+
+# Phase 5 Plan 01: Registry Enrichment & BackendSelectionStep Wiring Summary
+
+**BACKEND_REGISTRY enriched with displayName/description/fields, BackendSelectionStep driven by Object.entries(BACKEND_REGISTRY), and dead BackendFormValues<T> export removed**
+
+## Performance
+
+- **Duration:** ~5 min
+- **Started:** 2026-03-30T09:36:00Z
+- **Completed:** 2026-03-30T09:39:00Z
+- **Tasks:** 2
+- **Files modified:** 4
+
+## Accomplishments
+- Changed BACKEND_REGISTRY from `Record<BackendType, FieldDef[]>` to `Record<BackendType, { displayName, description, fields: FieldDef[] }>`
+- BackendSelectionStep now uses `Object.entries(BACKEND_REGISTRY)` — Phase 6 new backends auto-appear in UI with zero additional UI code
+- All consumers (schemas/index.ts, RemoteConfigStep.tsx) updated to `.fields` access
+- Dead `BackendFormValues<T>` export removed from schemas/index.ts — no consumers existed
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **Task 1: Enrich BACKEND_REGISTRY and update all consumers** - `d495552` (feat)
+2. **Task 2: Wire BackendSelectionStep to registry + remove dead export** - `52318d5` (feat)
+
+## Files Created/Modified
+- `src/schemas/registry.ts` - Changed shape from flat FieldDef[] to { displayName, description, fields: FieldDef[] }
+- `src/schemas/index.ts` - Updated `.fields` access in buildZodSchema; removed BackendFormValues<T> export
+- `src/components/wizard/RemoteConfigStep.tsx` - Updated two `.fields` accesses
+- `src/components/wizard/BackendSelectionStep.tsx` - Replaced BACKENDS const with Object.entries(BACKEND_REGISTRY), added BACKEND_REGISTRY import
+
+## Decisions Made
+- displayName and description strings preserved exactly from the former hardcoded BACKENDS const so all test assertions remain green without modifying tests
+- BackendFormValues<T> removed with confidence after tsc --noEmit confirmed zero usages
+
+## Deviations from Plan
+
+None - plan executed exactly as written.
+
+## Issues Encountered
+None.
+
+## User Setup Required
+None - no external service configuration required.
+
+## Next Phase Readiness
+- TECH-03 and TECH-04 complete; registry is now the single source of truth for display + field data
+- Phase 6 (New Backends) can add a backend by adding one entry to BACKEND_REGISTRY — it auto-surfaces in BackendSelectionStep, buildZodSchema, and RemoteConfigStep with no additional UI changes
+- Plan 05-02 (ReviewStep scriptTargets filtering) is independent and can proceed
+
+---
+*Phase: 05-tech-debt*
+*Completed: 2026-03-30*