fix(consolidations): MemberOut.entity_type nullable, как legal_entity.entity_type в DBML (I-1, #42)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012vJkmBGKKqMoEMzvsXG3y2

api/src/schemas/consolidations.py

@@ -117,7 +117,7 @@ class MemberOut(BaseModel):
     id: uuid.UUID
     name: str
     inn: str
-    entity_type: EntityType
+    entity_type: EntityType | None  # DBML: `legal_entity.entity_type` nullable (I-1)
     is_head_entity: bool
     checklist: list[ChecklistCellOut]
     osv_accounts: list[str]

api/tests/test_api_consolidations.py

@@ -656,3 +656,18 @@ async def test_card_member_osv_accounts_q1_version_ignores_later_quarters(
 
     member = next(member for member in card["members"] if member["id"] == str(company.id))
     assert member["osv_accounts"] == ["60"]
+
+
+@pytest.mark.integration
+async def test_card_member_without_entity_type_is_served(auth_client: AuthClientFactory, seeded: AsyncSession) -> None:
+    """I-1: `legal_entity.entity_type` nullable в DBML — член периметра без типа не роняет карточку (тип `null`)."""
+    version, company, person = await _card_world(seeded)
+    person.entity_type = None
+    await seeded.flush()
+    client = await auth_client(KA_RF)
+
+    response = await client.get(f"{VERSIONS}/{version.id}")
+
+    assert response.status_code == HTTP_OK, response.text
+    types = {member["id"]: member["entity_type"] for member in response.json()["members"]}
+    assert types == {str(company.id): "ЮЛ", str(person.id): None}