internal/rosa: read-only access to built-ins

This removes potential footguns caused by mutable builtins without requiring unnecessary clones.

Signed-off-by: Ophestra <cat@gensokyo.uk>

cmd/mbf/main_test.go

@@ -8,11 +8,6 @@ import (
 	"hakurei.app/internal/rosa"
 )
 
-func TestMain(m *testing.M) {
-	rosa.Native().DropCaches("", rosa.OptLLVMNoLTO)
-	os.Exit(m.Run())
-}
-
 func TestCureAll(t *testing.T) {
 	t.Parallel()
 	const env = "ROSA_TEST_DAEMON"
@@ -35,8 +30,8 @@ func TestCureAll(t *testing.T) {
 		}
 	})
 
-	for _, handle := range rosa.Native().Collect() {
-		_, a := rosa.Native().Std().MustLoad(handle)
+	for _, handle := range rosa.Collect() {
+		_, a := rosa.MustLoad(handle)
 		t.Run(handle.String(), func(t *testing.T) {
 			_, err := cureRemote(t.Context(), &addr, a, 0)
 			if err != nil {