fix: normalize ambience loudness for v0.2.5

.agent/evidence-v0.2.5/reproduce.py

@@ -0,0 +1,28 @@
+"""승인 원본으로 두 번 재생성하고 public과 비교한다. 기존 공개 폴더는 수정하지 않는다."""
+import hashlib
+import json
+from pathlib import Path
+import sys
+import tempfile
+
+ROOT = Path(__file__).resolve().parents[2]
+sys.path.insert(0, str(ROOT / 'scripts'))
+import ambience_audio as audio
+
+plan = json.loads((ROOT / '.agent/AMBIENCE-SOURCES-v0.2.3.json').read_text())
+current = json.loads((ROOT / 'public/ambience/manifest.json').read_text())
+with tempfile.TemporaryDirectory(prefix='findword-reproduce-') as directory:
+    output = Path(directory) / 'ambience'
+    first = audio.generate(plan, '/tmp/findword-ambience-sources', output)
+    second = audio.generate(plan, '/tmp/findword-ambience-sources', output)
+    # 생성 시각만 달라질 수 있다. pass 통계·필터·PCM·notice의 재현성을 별도로 검사한다.
+    assert first['files'] == second['files'] == current['files']
+    assert (output / 'AMBIENCE_NOTICES.md').read_bytes() == (ROOT / 'public/ambience/AMBIENCE_NOTICES.md').read_bytes()
+    report = {'twoGenerationsMatchPublished': True, 'ignoredField': 'generatedAtUtc',
+              'toolVersions': first['toolVersions'], 'normalization': first['normalization'],
+              'files': [{'environmentId': f['environmentId'], 'sourceSha256': f['sourceSha256'],
+                         'sourceBytes': f['sourceBytes'], 'selectedSegmentStartSeconds': f['selectedSegmentStartSeconds'],
+                         'sha256': f['sha256'], 'bytes': f['bytes'], 'final': f['conversion']['loudness']['final']}
+                        for f in first['files']]}
+    (Path(__file__).parent / 'reproducibility.json').write_text(json.dumps(report, indent=2)+'\n')
+    print('PASS: all eight source hashes verified, two independent generations and published WAVs/pass metrics/notices match.')