세션 평가·라이브코치·교수자 분석 라운드 마감 + 문서 정리 + 코드품질 리팩터

- 누적 작업트리 커밋: 회기 평가 복구·durable 저장, 라이브 코치 이력/근거, 교수자 학생분석, 음성 비언어 메타, PII 마스킹, 운영 티켓/헬스 등
- 문서: 완료 기록 docs/archive/ 냉동 보관, docs/ 단일 인덱스(docs/README.md)+통합 TODO(docs/TODO.md)로 정리
- 리팩터(행위 보존): Stage enum SSOT(taxonomy 소유·state_machine re-export), store recent/masked_turns 중복 제거, speaker_ko_label 단일 헬퍼, _list_sessions N+1 제거(state/turns 배치 + 턴평가 하이드레이션 배치)
- 검증: 백엔드 pytest 352 passed, _list_sessions E2E chromium-single-run 2 passed

apps/api/app/test_dataset_export.py

@@ -1,3 +1,5 @@
+import importlib.util
+import sys
 import tempfile
 import unittest
 from pathlib import Path
@@ -12,11 +14,34 @@ from app.services.dataset_export import (
     intraclass_correlation,
     scan_for_pii,
     sha256_file,
+    validate_manifest_gate,
     write_jsonl,
 )
 
 
+REPO_ROOT = Path(__file__).resolve().parents[3]
+EXPORT_SCRIPT_PATH = REPO_ROOT / "scripts" / "export-recursive-dataset.py"
+
+
+def load_export_script():
+    spec = importlib.util.spec_from_file_location("export_recursive_dataset", EXPORT_SCRIPT_PATH)
+    assert spec is not None and spec.loader is not None
+    module = importlib.util.module_from_spec(spec)
+    sys.modules[spec.name] = module
+    spec.loader.exec_module(module)
+    return module
+
+
 class DatasetExportTests(unittest.TestCase):
+    def test_exporter_query_requires_consent_and_client_visible_turns(self) -> None:
+        exporter = load_export_script()
+        query = exporter.TURN_QUERY
+
+        self.assertIn("u.consent_at IS NOT NULL", query)
+        self.assertIn("'client' = ANY(t.visible_to)", query)
+        self.assertNotRegex(query, r"\bt\.text\s*(?:,|AS\b)")
+        self.assertNotIn("sc.text", query)
+
     def test_build_dataset_record_uses_masked_text_and_pseudonymous_keys(self) -> None:
         keys = ExportKeyMaps()
         record = build_dataset_record(
@@ -45,6 +70,32 @@ class DatasetExportTests(unittest.TestCase):
         self.assertNotIn("22222222-2222-2222-2222-222222222222", blob)
         self.assertNotIn("raw text should never be exported", blob)
 
+    def test_build_dataset_record_drops_supervisor_comment_text(self) -> None:
+        record = build_dataset_record(
+            {
+                "session_id": "11111111-1111-1111-1111-111111111111",
+                "learner_id": "22222222-2222-2222-2222-222222222222",
+                "persona_code": "P1",
+                "stage": "rapport",
+                "speaker": "client",
+                "text_masked": "마스킹된 발화입니다.",
+                "supervisor_comments": [
+                    {
+                        "kind": "note",
+                        "text": "김서연 010-1234-5678 raw supervisor note",
+                        "intent_deviation": {"severity": "low"},
+                    }
+                ],
+            },
+            item_index=1,
+            export_manifest_id="phase3-rl-seed-test",
+            keys=ExportKeyMaps(),
+        )
+
+        self.assertEqual(record["supervisor_comments"], [{"kind": "note", "intent_deviation": {"severity": "low"}}])
+        self.assertNotIn("김서연", str(record))
+        self.assertNotIn("010-1234-5678", str(record))
+
     def test_pii_scan_detects_identifiers_without_raw_samples(self) -> None:
         findings = scan_for_pii(
             {
@@ -89,6 +140,27 @@ class DatasetExportTests(unittest.TestCase):
                 agreement={"kappa": 0.59, "icc": 0.74, "gold_status": "not_gold"},
             )
 
+    def test_manifest_gate_requires_withdrawal_and_recursive_consent_scope(self) -> None:
+        manifest = {
+            "export_status": APPROVED_EXPORT_STATUS,
+            "pii_scan": {"status": "pass"},
+            "agreement": {"kappa": 0.70, "icc": 0.75},
+            "selection_criteria": {"include_withdrawn": True},
+            "consent_scope": {"allowed_uses": ["education_quality_review"]},
+            "approvals": {
+                "data_steward": "steward",
+                "legal_or_privacy_reviewer": "privacy",
+                "technical_operator": "operator",
+                "approved_at": "2026-07-01T00:00:00Z",
+            },
+        }
+
+        with self.assertRaisesRegex(
+            ValueError,
+            "include_withdrawn must be false; recursive_learning_seed consent scope is required",
+        ):
+            validate_manifest_gate(manifest)
+
     def test_jsonl_hash_manifest_dry_run(self) -> None:
         record = {
             "schema": "phase3_dataset_item_v1",