Delete sync_engine.py

sync_engine.py

@@ -1,8 +0,0 @@
-def sync_to_codexmesh(state):
-    """
-    Placeholder for CodexMesh propagation.
-    """
-    return {
-        "synced": True,
-        "nodes_updated": len(state.get("commodities", []))
-    }