fix: enterprise API error handling and license enforcement (#33044)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

api/services/errors/__init__.py

@@ -7,6 +7,7 @@ from . import (
     conversation,
     dataset,
     document,
+    enterprise,
     file,
     index,
     message,
@@ -21,6 +22,7 @@ __all__ = [
     "conversation",
     "dataset",
     "document",
+    "enterprise",
     "file",
     "index",
     "message",

api/services/errors/enterprise.py

@@ -0,0 +1,45 @@
+"""Enterprise service errors."""
+
+from services.errors.base import BaseServiceError
+
+
+class EnterpriseServiceError(BaseServiceError):
+    """Base exception for enterprise service errors."""
+
+    def __init__(self, description: str | None = None, status_code: int | None = None):
+        super().__init__(description)
+        self.status_code = status_code
+
+
+class EnterpriseAPIError(EnterpriseServiceError):
+    """Generic enterprise API error (non-2xx response)."""
+
+    pass
+
+
+class EnterpriseAPINotFoundError(EnterpriseServiceError):
+    """Enterprise API returned 404 Not Found."""
+
+    def __init__(self, description: str | None = None):
+        super().__init__(description, status_code=404)
+
+
+class EnterpriseAPIForbiddenError(EnterpriseServiceError):
+    """Enterprise API returned 403 Forbidden."""
+
+    def __init__(self, description: str | None = None):
+        super().__init__(description, status_code=403)
+
+
+class EnterpriseAPIUnauthorizedError(EnterpriseServiceError):
+    """Enterprise API returned 401 Unauthorized."""
+
+    def __init__(self, description: str | None = None):
+        super().__init__(description, status_code=401)
+
+
+class EnterpriseAPIBadRequestError(EnterpriseServiceError):
+    """Enterprise API returned 400 Bad Request."""
+
+    def __init__(self, description: str | None = None):
+        super().__init__(description, status_code=400)