feat v1.39.0: pure light sources toggle on click by default

- resolveTapAction: no explicit action + domain light -> toggle (kettle
  et al. keep info via their non-light primary); explicit choice wins
- device dialog shows the effective default (defaultTap)
- unit tests updated (+1, 106); smoke_light_default_tap.mjs; docs
  same-commit

test/logic.test.mjs

@@ -175,8 +175,9 @@ test('icon rules: device_class fallback', () => {
   assert.equal(iconFromDeviceClasses([]), null);
 });
 
-test('tap action: defaults to info', () => {
-  assert.equal(resolveTapAction(undefined, undefined, 'light'), 'info');
+test('tap action: defaults — info everywhere except pure lights (v1.39.0)', () => {
+  assert.equal(resolveTapAction(undefined, undefined, 'light'), 'toggle'); // лампы кликабельны из коробки
+  assert.equal(resolveTapAction(undefined, undefined, 'switch'), 'info');
   assert.equal(resolveTapAction(null, 'info', 'switch'), 'info');
   assert.equal(resolveTapAction(null, 'more-info', 'sensor'), 'more-info');
 });
@@ -721,3 +722,15 @@ test('outlineWithout: removes the cut stretch, keeps the rest', () => {
   // без вырезов — весь периметр
   assert.ok(Math.abs(outlineWithout(sq, []).reduce((a, s) => a + len(s), 0) - 40) < 1e-6);
 });
+
+test('resolveTapAction: pure lights toggle by default (v1.39.0)', () => {
+  assert.equal(resolveTapAction(null, null, 'light'), 'toggle');
+  assert.equal(resolveTapAction('', undefined, 'light'), 'toggle');
+  // явный выбор пользователя сильнее дефолта
+  assert.equal(resolveTapAction('info', null, 'light'), 'info');
+  // не-световые домены не трогаем
+  assert.equal(resolveTapAction(null, null, 'switch'), 'info');
+  assert.equal(resolveTapAction(null, null, 'sensor'), 'info');
+  // замок никогда
+  assert.equal(resolveTapAction('toggle', null, 'lock'), 'info');
+});