Add GitHub integration service and endpoints

Data/Engine/services/github/__init__.py

@@ -0,0 +1,8 @@
+"""GitHub-oriented services for the Borealis Engine."""
+
+from __future__ import annotations
+
+from .github_service import GitHubService, GitHubTokenPayload
+
+__all__ = ["GitHubService", "GitHubTokenPayload"]
+