---
phase: 05-tech-debt
plan: "01"
type: execute
wave: 1
depends_on:
  - "05-00"
files_modified:
  - src/schemas/registry.ts
  - src/schemas/index.ts
  - src/components/wizard/RemoteConfigStep.tsx
  - src/components/wizard/BackendSelectionStep.tsx
autonomous: true
requirements:
  - TECH-03
  - TECH-04

must_haves:
  truths:
    - "BACKEND_REGISTRY entries each have displayName, description, and fields properties"
    - "BackendSelectionStep renders cards using Object.entries(BACKEND_REGISTRY) — no hardcoded BACKENDS array"
    - "All consumers of BACKEND_REGISTRY access field arrays via .fields"
    - "BackendFormValues<T> export is absent from src/schemas/index.ts"
    - "TypeScript compiles with zero errors after changes"
  artifacts:
    - path: "src/schemas/registry.ts"
      provides: "Enriched BACKEND_REGISTRY with displayName, description, fields"
      contains: "displayName"
    - path: "src/components/wizard/BackendSelectionStep.tsx"
      provides: "Registry-driven card list"
      contains: "Object.entries(BACKEND_REGISTRY)"
  key_links:
    - from: "src/schemas/registry.ts"
      to: "src/schemas/index.ts"
      via: "buildZodSchema accesses BACKEND_REGISTRY[backendType].fields"
      pattern: "\\.fields"
    - from: "src/schemas/registry.ts"
      to: "src/components/wizard/RemoteConfigStep.tsx"
      via: "field iteration uses BACKEND_REGISTRY[backendType].fields"
      pattern: "BACKEND_REGISTRY\\[backendType\\]\\.fields"
    - from: "src/schemas/registry.ts"
      to: "src/components/wizard/BackendSelectionStep.tsx"
      via: "Object.entries(BACKEND_REGISTRY) replaces BACKENDS const"
      pattern: "Object\\.entries\\(BACKEND_REGISTRY\\)"
---

<objective>
Enrich BACKEND_REGISTRY with display metadata, wire BackendSelectionStep to derive its card list from the registry, update all consumers to use .fields access, and remove the dead BackendFormValues<T> export.

Purpose: TECH-03 makes the registry the single source of truth for both field definitions AND display metadata — Phase 6 backend additions auto-surface with zero additional UI code. TECH-04 removes dead code.
Output: registry.ts with new shape, BackendSelectionStep.tsx driven by registry, schemas/index.ts clean.
</objective>

<execution_context>
@C:/Users/SebastienQUEROL/.claude/get-shit-done/workflows/execute-plan.md
@C:/Users/SebastienQUEROL/.claude/get-shit-done/templates/summary.md
</execution_context>

<context>
@.planning/PROJECT.md
@.planning/ROADMAP.md
@.planning/phases/05-tech-debt/05-CONTEXT.md
@.planning/phases/05-tech-debt/05-RESEARCH.md
@.planning/phases/05-tech-debt/05-00-SUMMARY.md

<interfaces>
<!-- Extracted from codebase — executor uses these directly -->

From src/schemas/registry.ts (CURRENT shape — executor REPLACES this):
```typescript
export type BackendType = 'azureblob' | 's3' | 's3-compatible';
export interface FieldDef { key, label, inputType, required, placeholder?, helpText?, options? }
export const BACKEND_REGISTRY: Record<BackendType, FieldDef[]> = { ... }
```

New shape (TECH-03 target):
```typescript
export const BACKEND_REGISTRY: Record<BackendType, {
  displayName: string;
  description: string;
  fields: FieldDef[];
}> = {
  azureblob: {
    displayName: 'Azure Blob Storage',
    description: 'Microsoft Azure cloud storage',
    fields: [ /* existing FieldDef[] content unchanged */ ],
  },
  s3: {
    displayName: 'Amazon S3',
    description: 'AWS Simple Storage Service',
    fields: [ /* existing FieldDef[] content unchanged */ ],
  },
  's3-compatible': {
    displayName: 'S3-Compatible',
    description: 'Wasabi, MinIO, Cloudflare R2, and others',
    fields: [ /* existing FieldDef[] content unchanged */ ],
  },
};
```

Display strings MUST match existing BackendSelectionStep card text exactly (test assertions check these strings).

From src/schemas/index.ts line 10 (consumer 1 — must update):
```typescript
const fields = BACKEND_REGISTRY[backendType]; // CHANGE TO: BACKEND_REGISTRY[backendType].fields
```

From src/components/wizard/RemoteConfigStep.tsx (consumers 2 and 3 — must update):
```typescript
// Line 58: BACKEND_REGISTRY.azureblob.find(f => f.key === 'account')
//   CHANGE TO: BACKEND_REGISTRY.azureblob.fields.find(f => f.key === 'account')
// Line 73: BACKEND_REGISTRY[backendType].map(field => ...)
//   CHANGE TO: BACKEND_REGISTRY[backendType].fields.map(field => ...)
```

From src/components/wizard/BackendSelectionStep.tsx (TECH-03 — replace hardcoded BACKENDS):
```typescript
// Remove: const BACKENDS: { type: BackendType; name: string; description: string }[] = [...]
// Replace rendering with:
import { BACKEND_REGISTRY } from '../../schemas/registry';
// ...
{Object.entries(BACKEND_REGISTRY).map(([type, entry]) => (
  <BackendCard
    key={type}
    name={entry.displayName}
    description={entry.description}
    selected={state.remote.backendType === type}
    onClick={() => handleCardClick(type as BackendType)}
  />
))}
```

From src/schemas/index.ts lines 27-28 (TECH-04 — remove entirely):
```typescript
// REMOVE these two lines:
export type BackendFormValues<T extends BackendType> =
  z.infer<typeof BACKEND_SCHEMAS[T]>;
```
</interfaces>
</context>

<tasks>

<task type="auto" tdd="true">
  <name>Task 1: Enrich BACKEND_REGISTRY and update all consumers</name>
  <files>src/schemas/registry.ts, src/schemas/index.ts, src/components/wizard/RemoteConfigStep.tsx</files>
  <behavior>
    - registry.test.ts 'each backend entry has displayName and description metadata' passes
    - registry.test.ts 'each backend has at least one field definition' passes (via .fields.length)
    - registry.test.ts 'Azure Blob has account field' passes (via .fields.find)
    - schemas/index.ts buildZodSchema receives FieldDef[] from .fields — all BACKEND_SCHEMAS build correctly
    - RemoteConfigStep renders fields correctly (existing RemoteConfigStep.test.tsx passes)
  </behavior>
  <action>
    1. Edit src/schemas/registry.ts:
       - Change BACKEND_REGISTRY value type from `FieldDef[]` to `{ displayName: string; description: string; fields: FieldDef[] }`
       - Wrap each backend's existing FieldDef array in the new object shape, adding displayName and description
       - displayName and description strings MUST match the existing BACKENDS array in BackendSelectionStep.tsx exactly:
         - azureblob: displayName='Azure Blob Storage', description='Microsoft Azure cloud storage'
         - s3: displayName='Amazon S3', description='AWS Simple Storage Service'
         - s3-compatible: displayName='S3-Compatible', description='Wasabi, MinIO, Cloudflare R2, and others'
       - All existing FieldDef content is preserved unchanged inside fields

    2. Edit src/schemas/index.ts line 10:
       - Change `const fields = BACKEND_REGISTRY[backendType];` to `const fields = BACKEND_REGISTRY[backendType].fields;`

    3. Edit src/components/wizard/RemoteConfigStep.tsx:
       - Line 58: Change `BACKEND_REGISTRY.azureblob.find(f => f.key === 'account')` to `BACKEND_REGISTRY.azureblob.fields.find(f => f.key === 'account')`
       - Line 73: Change `BACKEND_REGISTRY[backendType].map(field =>` to `BACKEND_REGISTRY[backendType].fields.map(field =>`
  </action>
  <verify>
    <automated>cd /c/Users/SebastienQUEROL/Documents/projets/Ready2Blob && npx vitest run src/schemas/registry.test.ts src/components/wizard/RemoteConfigStep.test.tsx 2>&1 | tail -15</automated>
  </verify>
  <done>
    registry.test.ts passes with all tests green (including new displayName/description test and .fields access tests).
    RemoteConfigStep.test.tsx still passes.
    TypeScript sees no errors on the modified files.
  </done>
</task>

<task type="auto" tdd="true">
  <name>Task 2: Wire BackendSelectionStep to registry + remove dead export</name>
  <files>src/components/wizard/BackendSelectionStep.tsx, src/schemas/index.ts</files>
  <behavior>
    - BackendSelectionStep renders 'Azure Blob Storage', 'Amazon S3', 'S3-Compatible' cards (from registry, not hardcoded)
    - Azure Blob card appears before S3 in DOM order (Object.entries insertion order preserved)
    - Clicking a card with a valid remote name still dispatches SET_BACKEND_TYPE and SET_STEP (existing WIZD-01 test passes)
    - BackendFormValues<T> type is absent from src/schemas/index.ts
    - npx tsc --noEmit exits with code 0
  </behavior>
  <action>
    1. Edit src/components/wizard/BackendSelectionStep.tsx:
       - Add import: `import { BACKEND_REGISTRY } from '../../schemas/registry';`
       - Remove the `BACKENDS` constant entirely (lines 21-37)
       - In the JSX rendering section, replace `{BACKENDS.map((backend) => (` block with:
         ```tsx
         {Object.entries(BACKEND_REGISTRY).map(([type, entry]) => (
           <BackendCard
             key={type}
             name={entry.displayName}
             description={entry.description}
             selected={state.remote.backendType === type}
             onClick={() => handleCardClick(type as BackendType)}
           />
         ))}
         ```
       - Remove the now-unused local type import for BackendType from '../../store/types' IF it is only used by the BACKENDS const (check — it may still be needed for pendingBackend.current type annotation). If BackendType is still needed, keep the import.

    2. Edit src/schemas/index.ts:
       - Remove lines 27-28: the `export type BackendFormValues<T extends BackendType> = z.infer<typeof BACKEND_SCHEMAS[T]>;` export
       - Also remove the blank comment line above it (line 26: `// Utility type: infer TypeScript type from a backend's Zod schema`) to avoid orphan comment

    3. Run TypeScript check to confirm no consumers of BackendFormValues exist:
       `npx tsc --noEmit`
  </action>
  <verify>
    <automated>cd /c/Users/SebastienQUEROL/Documents/projets/Ready2Blob && npx vitest run src/components/wizard/BackendSelectionStep.test.tsx && npx tsc --noEmit 2>&1 | tail -10</automated>
  </verify>
  <done>
    BackendSelectionStep.test.tsx passes (WIZD-01 card text assertions still green — display strings match).
    npx tsc --noEmit exits with zero errors.
    BackendFormValues export is absent from src/schemas/index.ts.
  </done>
</task>

</tasks>

<verification>
Full suite green except pre-existing RED stubs (TECH-01, TECH-02 ReviewStep stubs remain RED — implemented in Plan 02):
```
cd /c/Users/SebastienQUEROL/Documents/projets/Ready2Blob && npx vitest run && npx tsc --noEmit
```
Expected: All registry tests green, all BackendSelectionStep tests green, RemoteConfigStep tests green. Only TECH-01/TECH-02 ReviewStep stubs still RED.
</verification>

<success_criteria>
- BACKEND_REGISTRY shape is `Record<BackendType, { displayName, description, fields: FieldDef[] }>`
- BackendSelectionStep uses `Object.entries(BACKEND_REGISTRY)` — no hardcoded BACKENDS array
- schemas/index.ts uses `.fields` access and has no BackendFormValues export
- RemoteConfigStep uses `.fields` access
- registry.test.ts fully green
- BackendSelectionStep.test.tsx fully green
- npx tsc --noEmit: zero errors
</success_criteria>

<output>
After completion, create `.planning/phases/05-tech-debt/05-01-SUMMARY.md`
</output>