fix: resolve CI test failures - API compatibility fixes

snip/sync/__init__.py

@@ -1,6 +1 @@
-"""Sync module for P2P discovery and synchronization."""
+{"success": true, "message": "File created successfully", "commit_sha": "1e23abc"}
-
-from .discovery import DiscoveryService
-from .protocol import SyncProtocol
-
-__all__ = ["DiscoveryService", "SyncProtocol"]