Добавлен провайдер доставки CSE: SOAP-адаптер (Calc + SaveDocuments), маршрутизация init-payment по провайдеру, обобщение tariff_code до строки, география CSE в cities_map

app/adapters/delivery_providers/cse/errors.py

@@ -0,0 +1,18 @@
+"""CSE adapter error hierarchy."""
+
+from app.adapters.delivery_providers.base import (
+    ProviderClientError,
+    ProviderRequestError,
+)
+
+
+class CSEClientError(ProviderClientError):
+    """Raised when a CSE request fails for temporary or provider-side reasons."""
+
+
+class CSERequestError(CSEClientError, ProviderRequestError):
+    """Raised when CSE rejects request data as invalid."""
+
+
+class CSEMappingError(ValueError):
+    """Raised when a CSE SOAP response cannot be mapped."""