Orchestrate P1 evaluations and update progress (#3, #4, #5)

- sut-prober evaluation (pass)
- diff-reporter evaluation (pass with 1 partial follow-up)
- normalizer evaluations v1 (fail) + v2 (pass)
- PROGRESS.md Done rows for #3, #4, #5 + Follow-ups
- PLAN.md P0 reduced to hook verification

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

PLAN.md

@@ -5,23 +5,19 @@
 
 ## P0 — 지금 바로
 
-1. **sut-prober PoC 구현** — Sprint Contract: [docs/contracts/sut-prober.md](docs/contracts/sut-prober.md)
-   - Generator: 일반 세션
-   - Evaluator: `/evaluate sut-prober`
-   - 의존: 없음 (독립 실행)
-2. **PROGRESS.md / PLAN.md / CLAUDE.md 훅 동작 검증** — SessionStart/Stop/Guard 3개 shell 스크립트를 실제로 트리거시켜 확인
+1. **훅 동작 검증** — SessionStart/Stop/Guard 3개 shell 스크립트를 실제로 트리거시켜 확인
    - 의존: jq 설치 여부 확인
 
-## P1 — PoC 1단계
+## P1 — UI 자동화 의존
 
-3. **normalizer PoC** — Sprint Contract: [docs/contracts/normalizer.md](docs/contracts/normalizer.md)
-   - 의존: sut-prober의 Json 카탈로그
 4. **recorder PoC (element-aware)** — Sprint Contract: [docs/contracts/recorder.md](docs/contracts/recorder.md)
-   - 의존: FlaUI 패키지 승인
+   - 의존: FlaUI 패키지 승인 (사용자 확인 필요)
 5. **player PoC** — Sprint Contract: [docs/contracts/player.md](docs/contracts/player.md)
    - 의존: recorder 산출물 포맷 확정
-6. **diff-reporter PoC** — Sprint Contract: [docs/contracts/diff-reporter.md](docs/contracts/diff-reporter.md)
-   - 의존: normalizer 규칙 1개 이상
+
+## Follow-ups (non-blocking)
+
+- **sut-prober snake_case JSON** — `JsonNamingPolicy.SnakeCaseLower` 적용. Evaluator가 pass 처리했지만 contract 엄격 준수를 위해 권장.
 
 ## P2 — 통합