feat: publish standalone worker

Separate worker packaging and service lifecycle from the control plane.

internal/util/format_duration_test.go

@@ -0,0 +1,15 @@
+package util
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestFormatDuration(t *testing.T) {
+	assert.Equal(t, "1 минуту", FormatDuration(60), "")
+	assert.Equal(t, "2 минуты", FormatDuration(120), "")
+	assert.Equal(t, "5 минут", FormatDuration(300), "")
+	assert.Equal(t, "1 час, 5 минут", FormatDuration(3600+300), "")
+	assert.Equal(t, "1 час, 0 минут", FormatDuration(3600), "")
+}