# DS-007 — WalkaSurfaceCard

Status: COMPLETED / STABLE ON `main`
Issue: #103 — completed
PR: #104 — merged
Implementation branch: `agent/ds-007-surface-card`
Stable merge: `ae8c16264ab2a8f97b9be22fa6e64abd9a63222d`
Parent: #85 UI Task Master

## Scope

Create one reusable premium card surface under the shared design system without changing any owner-visible feature page in this atomic slice.

## Delivered

- Added `mobile/lib/design_system/components/cards/walka_surface_card.dart`.
- Default contract uses `WalkaColors.white`, `WalkaColors.line`, `WalkaRadius.md`, `WalkaSpacing.md` and anti-aliased clipping.
- Supports custom surface color, border color, radius, padding, elevation and clip behavior.
- Optional `onTap` adds Material `InkWell` feedback; static cards do not create unnecessary interaction surfaces.
- Optional semantic label and button semantics are exposed for interactive cards.
- Added focused widget coverage for default tokens, customization, padding, callback and non-interactive behavior.

## Validation receipt

### Final PR-context gate

- Synced head: `125d2d179d8537c422d16332b80aacaf58b77e01`.
- Workflow: Flutter Preview run `31388855464` (#488).
- Flutter Analyze: Green.
- Full Flutter tests: Green.
- Android runner generation: Green.
- WALKA Android branding: Green.
- Release APK build: Green.
- Candidate artifact: `9062943033` (`walka-installable-a4493211cd0f80c4f8fb724b083fce5a3be0d111`).
- Candidate artifact digest: `sha256:676cab60b3f0342b203fa352e884a9c602e8aa8ef1b54638503e6d2eafd17c0e`.

### Stable-main gate and verified APK

The direct merge run was superseded by a later documentation commit from the parallel team. Current `main` validation therefore ran against source `8d19a6cfb4dd52557bd77dc10ae6d31c2f98990a`, which contains the DS-007 merge plus the DS-002..DS-006 reconciliation.

- Stable workflow: Flutter Preview run `31389679731` (#491).
- Analyze + full tests + Android runner + branding + release APK: Green.
- Stable publication guard: Green.
- Stable APK publication: Green.
- Workflow artifact: `9063297605`.
- Workflow artifact digest: `sha256:1e3295ab5456617cdcf20ac39b018f2e550e0bedbc71b29df25a3cd8cd41d182`.
- Published APK: `Last verified APK/WALKA-latest.apk`.
- App version: `1.2.0+120`.
- APK bytes: `52717255`.
- APK SHA-256: `180c2931a78b8b12a69f460480bf643c4a33b52cd39ce7f6f20c6d86a6b53a87`.
- Verified APK receipt publication commit: `65029ccafdfeb87155db92140e2b6217d12f932f`.

## Guardrails confirmed

- No Product Master changes.
- No catalog, Favorites, backend or Amazon-routing changes.
- No feature-page integration in this task.
- `Images/` untouched.
- No ZIP delivery.

## Completion checklist

- [x] Flutter dependency resolution / formatting path passed in CI.
- [x] `flutter analyze` Green.
- [x] Full Flutter tests Green.
- [x] Android runner / WALKA branding Green.
- [x] Release APK build Green.
- [x] PR-context validation Green.
- [x] Merged to stable `main`.
- [x] Stable-main validation Green on the current combined source.
- [x] `Last verified APK/WALKA-latest.apk` and receipt published from stable `main`.