BLD3, BLD4: the joined step test carries no names list, the lint's fixed-name rule being taken out

Builds: design 47 G §7, §328, §329

Claude-Session: https://claude.ai/code/session_01JG73KEq4zoDfM9WtYpcQgZ

modules/mesh-build-go/buildstep/askrun_test.go

@@ -379,8 +379,7 @@ func TestRunAskRunsAPipelineStepAndSaysItsEnd(t *testing.T) {
 	stepOf := func(step string, kept ...sdkstep.KeptResult) sdkstep.StepAsk {
 		return sdkstep.StepAsk{ID: sdkstep.NewID(), Kind: sdkstep.AskStep, Language: sdkstep.AskGo, Asker: "mesh-delivery-pipeline", At: time.Now(),
 			Step: &sdkstep.StepRun{Pipeline: "main.12.m", Step: step, Module: "m", Artifact: "m:program", Commit: runCommit, Fingerprint: "fp-1",
-				Fetch: sdkstep.Fetch{Repository: "novox/x", Commit: runCommit, Dir: "modules/m"}, Kept: kept,
-				Names: sdkstep.StepNames{Modules: []string{"m"}, Repositories: []string{"novox/x"}, Branches: []string{"main"}}}}
+				Fetch: sdkstep.Fetch{Repository: "novox/x", Commit: runCommit, Dir: "modules/m"}, Kept: kept}}
 	}
 	for _, row := range []struct {
 		name     string