refactor: move act under internal

The runner is an application, not a library. `act/model` and
`act/exprparser` were the last packages anything outside this repository
consumed and they now live in actionslib, so nothing needs the rest of
`act` to be importable, and keeping it importable invites the coupling
that was just removed.

Import paths only, the files are unchanged.

Assisted-by: Codet:GPT-5.1-Codex

internal/act/container/docker_volume.go

@@ -0,0 +1,59 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// Copyright 2020 The nektos/act Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+//go:build !(WITHOUT_DOCKER || !(linux || darwin || windows || netbsd))
+
+package container
+
+import (
+	"context"
+
+	"gitea.com/gitea/runner/internal/act/common"
+
+	"github.com/moby/moby/client"
+)
+
+func NewDockerVolumeRemoveExecutor(volumeName string, force bool) common.Executor {
+	return func(ctx context.Context) error {
+		cli, err := GetDockerClient(ctx)
+		if err != nil {
+			return err
+		}
+		defer cli.Close()
+
+		list, err := cli.VolumeList(ctx, client.VolumeListOptions{})
+		if err != nil {
+			return err
+		}
+
+		for _, vol := range list.Items {
+			if vol.Name == volumeName {
+				return removeExecutor(volumeName, force)(ctx)
+			}
+		}
+
+		// Volume not found - do nothing
+		return nil
+	}
+}
+
+func removeExecutor(volume string, force bool) common.Executor {
+	return func(ctx context.Context) error {
+		logger := common.Logger(ctx)
+		logger.Debugf("docker volume rm %s", volume)
+
+		if common.Dryrun(ctx) {
+			return nil
+		}
+
+		cli, err := GetDockerClient(ctx)
+		if err != nil {
+			return err
+		}
+		defer cli.Close()
+
+		_, err = cli.VolumeRemove(ctx, volume, client.VolumeRemoveOptions{Force: force})
+		return err
+	}
+}