feat: release v0.28 generic Go project scaffolding and lifecycle entry

examples/program/internal/run/run.go

@@ -0,0 +1,19 @@
+package run
+
+import (
+	"context"
+	"example.com/program/internal/svc"
+)
+
+// Run is project-owned. Return nil for normal completion, or an error to fail.
+// The starter waits for shutdown; a one-shot program can simply return when done.
+// Register background stop/drain hooks in svc.Init, not concurrently here.
+// Accepted background work uses deps.WorkContext(), not the early-stop ctx.
+func Run(ctx context.Context, deps *svc.ServiceContext) error {
+	if deps.Config.Once {
+		deps.Logger.InfoContext(ctx, "program.completed")
+		return nil
+	}
+	<-ctx.Done()
+	return nil
+}