feat: migrate all alpha config booleans to pointers

Signed-off-by: Jan Larwig <jan@larwig.com>

pkg/util/ptr/ptr.go

@@ -0,0 +1,14 @@
+package ptr
+
+// Ptr generically returns a pointer to the given value.
+func Ptr[T any](v T) *T {
+	return &v
+}
+
+// Deref returns the value of the pointer or def(ault) if nil.
+func Deref[T any](p *T, def T) T {
+	if p == nil {
+		return def
+	}
+	return *p
+}

pkg/util/ptr/ptr_test.go

@@ -0,0 +1,38 @@
+package ptr
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestPtr(t *testing.T) {
+	p := Ptr(42)
+	assert.NotNil(t, p)
+	assert.Equal(t, 42, *p)
+
+	s := Ptr("hello")
+	assert.NotNil(t, s)
+	assert.Equal(t, "hello", *s)
+
+	b := Ptr(true)
+	assert.NotNil(t, b)
+	assert.True(t, *b)
+}
+
+func TestDeref(t *testing.T) {
+	v := Deref(Ptr(99), 0)
+	assert.Equal(t, 99, v)
+
+	v = Deref[int](nil, 123)
+	assert.Equal(t, 123, v)
+
+	s := Deref[string](nil, "default")
+	assert.Equal(t, "default", s)
+
+	b := Deref(Ptr(true), false)
+	assert.True(t, b)
+
+	b = Deref[bool](nil, false)
+	assert.False(t, b)
+}