feat: establish TypeScript-aware frontend tooling

README.md

@@ -6,7 +6,8 @@ operations are executable contracts rather than conventions.
 
 ## Start locally
 
-Requirements: Node 24 and Corepack. The repository pins pnpm in `package.json`.
+Requirements: Node 24.11 or newer and Corepack. The repository pins pnpm in
+`package.json`.
 
 ```bash
 corepack pnpm install --frozen-lockfile
@@ -80,6 +81,9 @@ Common local checks:
 ```bash
 corepack pnpm lint
 corepack pnpm check:types
+corepack pnpm check:types:app
+corepack pnpm check:types:node
+corepack pnpm check:types:test
 corepack pnpm check:architecture
 corepack pnpm test:all
 corepack pnpm test:e2e
@@ -94,6 +98,13 @@ corepack pnpm drill:runbooks
 corepack pnpm check:ci
 ```
 
+`check:types`는 source, Node scripts/config와 tests를 분리된 TypeScript
+project로 모두 검사한다. type/architecture/security/registry의 invalid
+fixture는 `config/ci/gates.json`에서 “실패해야 통과”하는 negative gate로
+실행된다. 도구 호환성 결정은
+[VD-01](docs/architecture/decisions/VD-01-typescript-lint-tooling.md)에 기록돼
+있다.
+
 Install the pinned Playwright browser engines before the first cross-browser
 run: