chore: store ServiceContainer (includes service spec) instead of Container in Corrosion store

internal/machine/docker/controller_darwin.go

@@ -0,0 +1,19 @@
+//go:build darwin
+
+package docker
+
+import (
+	"context"
+	"fmt"
+	"net/netip"
+)
+
+// EnsureUncloudNetwork is a stub for Darwin.
+func (c *Controller) EnsureUncloudNetwork(ctx context.Context, subnet netip.Prefix, dnsServer netip.Addr) error {
+	return fmt.Errorf("not supported on Darwin")
+}
+
+// Cleanup is a stub for Darwin.
+func (c *Controller) Cleanup() error {
+	return fmt.Errorf("not supported on Darwin")
+}