feat: verifyIntegrity CLI 래퍼 추가 및 문서화 (TDD)

- verify.cli.ts/verify.cli.test.ts 추가
- README 사용법/종료코드/CI 가이드 문서화
- 전체 테스트 그린 유지

README.md

@@ -80,6 +80,26 @@ The Builder can export a production-ready ZIP that contains:
 ### Asset paths and grouping
 
 - AssetManager writes files to `assets/` with stable hash-based filenames.
+
+### verifyIntegrity CLI
+
+- Purpose: Validate exported bundle assets against `assets.integrity.index.json`.
+- Input format: two JSON files mapping file path → base64 bytes
+  - Extras JSON: must contain `"assets.integrity.index.json"` key with base64 of the index file
+  - Assets JSON: keys are asset paths, values are base64 of file bytes
+- Usage:
+
+```bash
+node scripts/verify.js --extras extras.json --assets assets.json
+```
+
+- Output: prints a JSON with fields of `VerifyResult` (`ok`, `errors`, `summary`)
+- Exit codes:
+  - 0: ok
+  - 1: verification failed or invalid inputs
+  - 2: usage error (missing args)
+
+- CI: add a step to run the CLI after build/export; fail the job if exit code != 0.
 - Path strategy can be configured:
   - `flat` (default): `assets/<hash>.<ext>`
   - `grouped`: `assets/images/...`, `assets/fonts/...`, `assets/other/...`