Structural changes

src/pyrmv/errors/int_errors.py

@@ -0,0 +1,29 @@
+class IntError(Exception):
+    """
+    Internal RMV server error.
+    """
+    def __init__(self):
+        super().__init__(self.__doc__)
+
+    def __str__(self):
+        return self.__doc__
+
+class IntGatewayError(Exception):
+    """
+    Communication error with RMV backend systems.
+    """
+    def __init__(self):
+        super().__init__(self.__doc__)
+
+    def __str__(self):
+        return self.__doc__
+
+class IntTimeoutError(Exception):
+    """
+    Timeout during service processing.
+    """
+    def __init__(self):
+        super().__init__(self.__doc__)
+
+    def __str__(self):
+        return self.__doc__