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

docs/TESTING.md

@@ -140,6 +140,10 @@ Run the *core flows* (marked ★ below) in each environment at least once per mi
       (explicit ripple color still wins); off/white lights unchanged [auto]
 - [ ] Alarm pulse (v1.27.0): leak/smoke/gas/CO/siren in 'on' pulse a red ring over any
       display mode; clears on 'off'; unavailable never alarms [auto]; reduced-motion static
+- [ ] Lock action (v1.30.0): opening info card (View) shows Unlock (red) when
+      locked / Lock when unlocked; button calls the lock service; disabled while
+      locking/unlocking; hidden when unavailable; plan-icon tap still never
+      toggles a lock [auto]
 - [ ] New-device flag (v1.29.0): a device added to HA after install gets a big red
       dot top-right of its icon (all clients); opening its editor clears it
       everywhere; upgrade/first-run seeds the baseline silently — no dot flood [auto]