feat v1.30.0: explicit Unlock/Lock action in the opening info card

- View-mode door/window info card gets an Unlock (red) / Lock button when a
  lock entity is bound and available; disabled while locking/unlocking,
  hidden when unavailable
- plan-icon taps still never toggle locks (hard block untouched);
  smoke_lock_action.mjs covers the full matrix incl. the block
- TESTING.md, CHANGELOG, UX-MODES same-commit

src/i18n/en.json

@@ -245,5 +245,8 @@
   "mode.devices": "Devices",
   "display.value": "Value instead of an icon",
   "marker.subarea": "no area, manual",
-  "device.new": "New device — open its editor to dismiss"
+  "device.new": "New device — open its editor to dismiss",
+  "opening.unlock_action": "Unlock",
+  "opening.lock_action": "Lock",
+  "opening.lock_pending": "Working…"
 }