move app to gatehouse-app

gatehouse_app/exceptions/base.py

@@ -0,0 +1,31 @@
+"""Base exception classes."""
+
+
+class BaseAPIException(Exception):
+    """Base exception for all API errors."""
+
+    status_code = 500
+    error_type = "INTERNAL_ERROR"
+    message = "An unexpected error occurred"
+
+    def __init__(self, message=None, error_details=None):
+        """
+        Initialize exception.
+
+        Args:
+            message: Custom error message
+            error_details: Additional error details dictionary
+        """
+        super().__init__()
+        if message:
+            self.message = message
+        self.error_details = error_details or {}
+
+    def to_dict(self):
+        """Convert exception to dictionary for API response."""
+        return {
+            "error_type": self.error_type,
+            "message": self.message,
+            "details": self.error_details,
+            "status_code": self.status_code,
+        }