docs: record first research contract sync

tests/test_cross_project_contract.py

@@ -1,4 +1,4 @@
-"""Public synthetic-fixture contract shared with the backup repository."""
+"""Public synthetic-fixture contract shared with the commercial repository."""
 
 from __future__ import annotations
 
@@ -20,15 +20,17 @@ LEDGER = ROOT / "references" / "cross_project_contract" / "sync_ledger.json"
 
 def test_public_fixture_manifest_has_complete_effective_settings() -> None:
     manifest = contract.load_manifest(MANIFEST)
-    fixture = manifest["fixtures"][0]
+
     assert manifest["schema_version"] == 1
     assert manifest["privacy_scope"] == "public_synthetic_only"
+    fixture = manifest["fixtures"][0]
     assert fixture["birth"]["synthetic"] is True
     assert fixture["effective"] == {"ayanamsa": "lahiri", "node_mode": "mean", "timezone_offset": 5.5}
 
 
 def test_local_calculation_matches_public_compatibility_hash() -> None:
     report = contract.evaluate_manifest(MANIFEST)
+
     assert report["matches"] is True
     assert report["fixtures"][0]["matches"] is True
 
@@ -38,7 +40,9 @@ def test_comparator_reports_tampered_expected_hash(tmp_path: Path) -> None:
     manifest["fixtures"][0]["compatibility_hash"] = "0" * 64
     changed = tmp_path / "fixture_manifest.v1.json"
     changed.write_text(json.dumps(manifest), encoding="utf-8")
+
     report = contract.evaluate_manifest(changed)
+
     assert report["matches"] is False
     assert report["fixtures"][0]["matches"] is False
 
@@ -47,16 +51,25 @@ def test_compatibility_payload_normalizes_engine_degree_field() -> None:
     fixture = contract.load_manifest(MANIFEST)["fixtures"][0]
     chart = {
         "ascendant": {"sign": "Aries", "degree": 1.25},
-        "planets": {planet: {"sign": "Aries", "degree": float(index)} for index, planet in enumerate(contract.PLANETS)},
+        "planets": {
+            planet: {"sign": "Aries", "degree": float(index)}
+            for index, planet in enumerate(contract.PLANETS)
+        },
     }
+
     payload = contract.compatibility_payload(chart, fixture)
+
     assert payload["ascendant"]["lon"] == 1.25
     assert payload["planets"]["Sun"]["lon"] == 0.0
 
 
 def test_sync_ledger_requires_provenance_privacy_tests_hash_and_rollback() -> None:
     ledger = contract.load_ledger(LEDGER)
-    assert ledger == {"schema_version": 1, "entries": []}
+
+    assert ledger["schema_version"] == 1
+    assert len(ledger["entries"]) == 1
+    assert contract.validate_ledger_entry(ledger["entries"][0]) == []
+    assert ledger["entries"][0]["privacy_review"].startswith("pass:")
     missing = contract.validate_ledger_entry({"source_repository": "x"})
     assert "target_commit" in missing
     assert "privacy_review" in missing