fix: improved offline support

Closes coop-cloud/organising#471.

cli/app/check.go

@@ -8,6 +8,7 @@ import (
 	"coopcloud.tech/abra/cli/internal"
 	"coopcloud.tech/abra/pkg/autocomplete"
 	"coopcloud.tech/abra/pkg/config"
+	"coopcloud.tech/abra/pkg/runtime"
 	"github.com/sirupsen/logrus"
 	"github.com/urfave/cli"
 )
@@ -19,10 +20,12 @@ var appCheckCommand = cli.Command{
 	ArgsUsage: "<domain>",
 	Flags: []cli.Flag{
 		internal.DebugFlag,
+		internal.OfflineFlag,
 	},
 	Before: internal.SubCommandBefore,
 	Action: func(c *cli.Context) error {
-		app := internal.ValidateApp(c)
+		conf := runtime.New(runtime.WithOffline(internal.Offline))
+		app := internal.ValidateApp(c, conf)
 
 		envSamplePath := path.Join(config.RECIPES_DIR, app.Recipe, ".env.sample")
 		if _, err := os.Stat(envSamplePath); err != nil {