feat: import exchange registry memberships

tests/apps/exchange/test_api.py

@@ -29,6 +29,7 @@ from apps.external_data.models import (
     PublicProcurement,
 )
 from apps.organization.models import Organization
+from apps.registers.models import RegisterUpload, RegistryMembershipPeriod
 from apps.user.models import User
 from cryptography.hazmat.primitives.ciphers.aead import AESGCM
 from django.conf import settings
@@ -168,6 +169,20 @@ def build_exchange_payload() -> dict[str, list[dict[str, object]]]:
                 "registry_number": "prod-001",
             }
         ],
+        "registry_memberships": [
+            {
+                "organization_inn": "7707083893",
+                "registry_name": "Реестр госкорпорации Росатом",
+                "started_at": "2026-01-01",
+                "ended_at": None,
+            },
+            {
+                "organization_inn": "7707083894",
+                "registry_name": "Реестр госкорпорации Роскосмос",
+                "started_at": "2026-02-01",
+                "ended_at": None,
+            },
+        ],
         "industrial_certificates": [
             {
                 "organization_inn": "7707083893",
@@ -326,7 +341,13 @@ class ExchangePackageApiTest(APITestCase):
         self.assertFalse(response.data["result"]["duplicate"])
         self.assertEqual(response.data["result"]["organizations"]["created"], 1)
         self.assertEqual(response.data["result"]["organizations"]["updated"], 1)
+        self.assertEqual(
+            response.data["result"]["registry_memberships"]["opened"],
+            2,
+        )
         self.assertEqual(Organization.objects.count(), 2)
+        self.assertEqual(RegisterUpload.objects.count(), 2)
+        self.assertEqual(RegistryMembershipPeriod.objects.count(), 2)
         self.assertEqual(IndustrialCertificate.objects.count(), 1)
         self.assertEqual(ManufacturerRegistryEntry.objects.count(), 1)
         self.assertEqual(IndustrialProduct.objects.count(), 1)
@@ -366,6 +387,10 @@ class ExchangePackageApiTest(APITestCase):
         self.assertEqual(organization.executors_count, 175)
         self.assertTrue(organization.tax_reports_available)
         self.assertTrue(organization.in_275_fz_registry)
+        self.assertEqual(
+            organization.get_active_registry_names(),
+            ["Реестр госкорпорации Росатом"],
+        )
 
         package_import = ExchangePackageImport.objects.get()
         self.assertEqual(package_import.delivery_channel, ExchangeDeliveryChannel.API)