chore(go): release 2.0.0 under the /v2 module path

Claude-Session: https://claude.ai/code/session_01QoUjdc7HGKTsgj5GhG8HvF

cmd/elydora/runtime_discovery.go

@@ -6,7 +6,7 @@ import (
 	"os"
 	"path/filepath"
 
-	"github.com/Elydora-Infrastructure/Elydora-Go-SDK/cmd/elydora/plugins"
+	"github.com/Elydora-Infrastructure/Elydora-Go-SDK/v2/cmd/elydora/plugins"
 )
 
 type installedAgentRuntime struct {