rdmsm4x local changelog — Amagansett Task 1 React/shadcn foundation

Established the isolated Amagansett Task 1 React 19 and official shadcn/ui foundation and verified all four private white prototypes before handoff.

Scope

• Host: rdmsm4x
• Project worktree: /Users/richh/dev/_handoff/codex-out/amagansett-white-preview-fidelity-20260825
• Branch: codex/amagansett-white-preview-fidelity-20260825
• Implementation commit: b55dbc7
• Verification-report commit: 595e039

Files touched

• React/shadcn package configuration: package.json, package-lock.json, tsconfig.json, components.json
• Shared primitives: packages/ui/lib/utils.ts, packages/ui/components/{button,dialog,tabs,input,select,card,sheet}.tsx
• Four TSX entry points, four HTML module references, four Vite configs
• tests/e2e/approved-design-contract.spec.ts
• .superpowers/sdd/2026-08-25-technical-completion/task-1-report.md

Commands and evidence

• npm test — 5 files / 16 tests passed.
• npm run typecheck — strict TypeScript passed.
• npm run build:guide, npm run build:ak, npm run build:forst, npm run build:preview — all four Vite builds passed.
• npx playwright test tests/e2e/approved-design-contract.spec.ts — 8 tests passed.
• npx shadcn@latest info --json — official base-nova/base config and seven components recognized.

Backup and undo

• Git rollback point: base 3e4229b3e60df13950f0ff422f1a03c9c9c87f7d.
• Undo by reverting b55dbc7 and, if desired, 595e039; do not overwrite the canonical source checkout.

Outstanding owner actions

• Parent task owner should review and integrate the isolated implementation commit and report commit as a bounded range.
• Later behavior tasks should adopt the shared primitives incrementally with their own RED/GREEN tests.
• MapLibre bundle-size warnings remain pre-existing open project work.