refactor(parsers): перенести тесты в ROOT_DIR/tests и синхронизировать контракты задач

- перенесены тесты parsers из src/apps/parsers/tests в tests/apps/parsers

- обновлены тесты задач под текущее поведение Celery (ошибки пробрасываются исключениями)

- убрана зависимость тестов от внешнего брокера через локальные eager-вызовы

- добавлены/уточнены фабрики и импорты для единой структуры тестов

- обновлены README и CHANGELOG с новым правилом размещения тестов и запуском

tests/apps/parsers/run_checko_e2e.py

@@ -0,0 +1,119 @@
+#!/usr/bin/env python
+"""
+Standalone E2E test for Checko API client.
+
+Usage:
+    PYTHONPATH=src python tests/apps/parsers/run_checko_e2e.py
+"""
+
+import os
+import sys
+
+import django
+from apps.parsers.clients.checko import (
+    CheckoClient,
+    CompanyRequest,
+    ContractLaw,
+    ContractsRequest,
+    FinancesRequest,
+    LegalCasesRequest,
+    ObjectType,
+    SearchRequest,
+    SearchType,
+)
+from django.conf import settings
+
+sys.path.insert(0, ".")
+
+# Setup Django settings
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "settings.dev")
+
+django.setup()
+
+
+API_KEY = os.environ.get("CHECKO_API_KEY") or settings.CHECKO_API_KEY
+if not API_KEY:
+    print("ERROR: CHECKO_API_KEY not configured")
+    print("Set it in .env or as environment variable")
+    sys.exit(1)
+
+TEST_INN = "7727060950"  # АО "ЭКОС"
+
+
+def main():
+    client = CheckoClient(api_key=API_KEY)
+
+    print("=" * 60)
+    print("E2E TEST: Get Company by INN")
+    print("=" * 60)
+    response = client.get_company(CompanyRequest(inn=TEST_INN))
+    print(f"Status: {response.meta.status}")
+    print(f"Balance: {response.meta.balance}")
+    print(f"Requests today: {response.meta.today_request_count}")
+    print(f"Company: {response.data.short_name}")
+    print(f"Full name: {response.data.full_name}")
+    print(f"INN: {response.data.inn}")
+    print(f"OGRN: {response.data.ogrn}")
+    print(f"Status: {response.data.status.name if response.data.status else None}")
+    print(
+        f"Address: {response.data.legal_address.full_address if response.data.legal_address else None}"
+    )
+
+    print()
+    print("=" * 60)
+    print("E2E TEST: Search by name")
+    print("=" * 60)
+    response = client.search(
+        SearchRequest(
+            by=SearchType.NAME, obj=ObjectType.ORGANIZATION, query="Ростелеком", limit=5
+        )
+    )
+    print(f"Found: {len(response.data.organizations)} organizations")
+    for org in response.data.organizations[:3]:
+        print(f"  - {org.inn}: {org.short_name}")
+
+    print()
+    print("=" * 60)
+    print("E2E TEST: Get Finances")
+    print("=" * 60)
+    response = client.get_finances(FinancesRequest(inn=TEST_INN))
+    print(f"Reports count: {len(response.data.reports)}")
+    if response.data.reports:
+        for r in response.data.reports[:2]:
+            print(f"  - Year {r.year}: {len(r.balance)} balance lines")
+
+    print()
+    print("=" * 60)
+    print("E2E TEST: Get Contracts (44-ФЗ)")
+    print("=" * 60)
+    response = client.get_contracts(
+        ContractsRequest(inn=TEST_INN, law=ContractLaw.FZ44, limit=5)
+    )
+    print(f"Contracts: {len(response.data.contracts)}")
+    if response.data.pagination:
+        print(f"Total: {response.data.pagination.total_records}")
+    if response.data.contracts:
+        c = response.data.contracts[0]
+        print(f"First: {c.registry_number}, price={c.price}")
+
+    print()
+    print("=" * 60)
+    print("E2E TEST: Get Legal Cases")
+    print("=" * 60)
+    response = client.get_legal_cases(LegalCasesRequest(inn=TEST_INN, limit=5))
+    print(f"Cases: {len(response.data.cases)}")
+    if response.data.pagination:
+        print(f"Total: {response.data.pagination.total_records}")
+    if response.data.cases:
+        c = response.data.cases[0]
+        print(f"First: {c.case_number}, claim={c.claim_amount}")
+
+    client.close()
+    print()
+    print("=" * 60)
+    print("ALL E2E TESTS PASSED!")
+    print("=" * 60)
+
+
+if __name__ == "__main__":
+    main()