feat(scene): refactor scene automation into modular trigger-action system

- Support manual one-tap commands and automatic condition-based rules
- Add modular triggers (time, temperature, humidity, device state)
- Add modular conditions (environment thresholds, socket state, time range)
- Upgrade actions to support virtual remotes, sockets, delays, and notifications
- Support sequential/parallel concurrency mode and error execution strategies
- Refactor SceneListScreen with filter tabs, quick execution, and enable switches
- Refactor SceneEditorScreen with modular builders and preset pickers
- Enhance SceneExecutionScreen with step timing, skips, and rerun capability
- Add comprehensive domain and UI ViewModel unit tests

testing/fakes/src/main/kotlin/com/flagship/abox/manager/testing/fakes/FakeSceneRepository.kt

@@ -181,12 +181,6 @@ class FakeSceneRepository : SceneRepository {
 
 /**
  * Fake [SceneExecutor] that drives the existing [SocketGateway] and [InfraredGateway] fakes.
- *
- * Behaviour matches the project_plan.md §4.7 contract:
- * - actions run sequentially in [Scene.actions] order;
- * - a single action failure does not abort subsequent actions;
- * - the returned [SceneExecutionResult] contains one entry per action;
- * - re-entering execute() while a scene is running returns [DomainError.OperationFailed].
  */
 class FakeSceneExecutor(
     private val socketGateway: SocketGateway,
@@ -203,9 +197,23 @@ class FakeSceneExecutor(
                 ),
             )
         }
+        val startTime = System.currentTimeMillis()
+        val results = mutableListOf<SceneActionExecutionResult>()
         return try {
-            val results = scene.actions.map { action -> executeAction(scene.profileId, action) }
-            DomainResult.Success(SceneExecutionResult(scene = scene, results = results))
+            for (action in scene.actions) {
+                val actionStart = System.currentTimeMillis()
+                val execResult = executeAction(scene.profileId, action)
+                val duration = System.currentTimeMillis() - actionStart
+                results.add(execResult.copy(executionDurationMillis = duration))
+            }
+            val totalDuration = System.currentTimeMillis() - startTime
+            DomainResult.Success(
+                SceneExecutionResult(
+                    scene = scene,
+                    results = results,
+                    totalDurationMillis = totalDuration,
+                ),
+            )
         } finally {
             running.remove(scene.id)
         }
@@ -227,6 +235,10 @@ class FakeSceneExecutor(
                 deviceName = action.deviceName,
                 key = action.key,
             )
+
+            is SceneAction.VirtualRemoteButton,
+            is SceneAction.Delay,
+            is SceneAction.Notification -> DomainResult.Success(Unit)
         }
         return when (result) {
             is DomainResult.Success -> SceneActionExecutionResult(