---
phase: 09-md3-components
plan: "04"
subsystem: ui
tags: [react, tailwind, md3, textfield, floating-label, react-hook-form]

# Dependency graph
requires:
  - phase: 09-md3-components/09-03
    provides: TextFieldMD3 component with floating label, FieldRenderer integration
provides:
  - BackendSelectionStep Remote name field migrated to TextFieldMD3
  - COMP-01 "All text inputs" requirement fully satisfied (12/12 wizard must-have truths)
affects: [Phase 10, verification]

# Tech tracking
tech-stack:
  added: []
  patterns: [TextFieldMD3 registration prop pattern extended to BackendSelectionStep]

key-files:
  created: []
  modified:
    - src/components/wizard/BackendSelectionStep.tsx

key-decisions:
  - "BackendSelectionStep gap: plain label+input replaced with TextFieldMD3; no test changes required — getByRole('textbox') and role='alert' preserved by TextFieldMD3 internals"

patterns-established:
  - "All wizard text inputs now use TextFieldMD3 with registration prop pattern"

requirements-completed: [COMP-01, COMP-02, COMP-03, COMP-04, DEBT-01]

# Metrics
duration: 5min
completed: 2026-04-01
---

# Phase 9 Plan 04: BackendSelectionStep TextFieldMD3 Gap Closure Summary

**TextFieldMD3 floating-label replaces BackendSelectionStep's plain Remote name input, closing the last COMP-01 gap and achieving 12/12 wizard must-have truths**

## Performance

- **Duration:** 5 min
- **Started:** 2026-04-01T10:26:00Z
- **Completed:** 2026-04-01T10:31:00Z
- **Tasks:** 1
- **Files modified:** 1

## Accomplishments
- Replaced `<label htmlFor="remote-name"> + <input> + <p role="alert">` block with `<TextFieldMD3>` in BackendSelectionStep
- Added `import { TextFieldMD3 } from '../ui/TextFieldMD3'` to the component
- All 10 BackendSelectionStep tests pass without modification (textbox role and alert role preserved by TextFieldMD3 internals)
- Full suite of 179 tests remains green, zero regressions
- COMP-01 "All text inputs use floating label" requirement fully satisfied across all wizard steps

## Task Commits

Each task was committed atomically:

1. **Task 1: Replace plain Remote name input with TextFieldMD3** - `123f24c` (feat)

**Plan metadata:** _(pending final docs commit)_

## Files Created/Modified
- `src/components/wizard/BackendSelectionStep.tsx` - TextFieldMD3 integration replacing plain label+input block

## Decisions Made
- No test changes needed: TextFieldMD3 renders `<input>` (preserving `getByRole('textbox')`) and `<p role="alert">` on error (preserving `getByRole('alert')`) — exact same DOM contract as the replaced plain elements

## Deviations from Plan

None - plan executed exactly as written.

## Issues Encountered
None.

## User Setup Required
None - no external service configuration required.

## Next Phase Readiness
- Phase 9 verification truth #12 can now be confirmed as VERIFIED (12/12 truths satisfied)
- COMP-01, COMP-02, COMP-03, COMP-04, DEBT-01 requirements fully closed
- Ready for Phase 10

---
*Phase: 09-md3-components*
*Completed: 2026-04-01*

## Self-Check: PASSED
- FOUND: src/components/wizard/BackendSelectionStep.tsx
- FOUND: .planning/phases/09-md3-components/09-04-SUMMARY.md
- FOUND: commit 123f24c