Initial commit: COPILOT D6 Flutter keyboard controller

Flutter web app replacing legacy WPF CCTV surveillance keyboard controller.
Includes wall overview, section view with monitor grid, camera input,
PTZ control, alarm/lock/sequence BLoCs, and legacy-matching UI styling.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

copilot_keyboard/lib/presentation/blocs/wall/wall_event.dart

@@ -0,0 +1,131 @@
+import 'package:equatable/equatable.dart';
+
+import '../../../domain/entities/wall_config.dart';
+
+abstract class WallEvent extends Equatable {
+  const WallEvent();
+
+  @override
+  List<Object?> get props => [];
+}
+
+/// Load wall configuration
+class LoadWallConfig extends WallEvent {
+  final WallConfig? config;
+
+  const LoadWallConfig([this.config]);
+
+  @override
+  List<Object?> get props => [config];
+}
+
+/// Select a viewer by tapping on it
+class SelectViewer extends WallEvent {
+  final int viewerId;
+
+  const SelectViewer(this.viewerId);
+
+  @override
+  List<Object?> get props => [viewerId];
+}
+
+/// Deselect current viewer
+class DeselectViewer extends WallEvent {
+  const DeselectViewer();
+}
+
+/// Update camera prefix for input
+class SetCameraPrefix extends WallEvent {
+  final int prefix; // 500, 501, 502
+
+  const SetCameraPrefix(this.prefix);
+
+  @override
+  List<Object?> get props => [prefix];
+}
+
+/// Add digit to camera number input
+class AddCameraDigit extends WallEvent {
+  final int digit;
+
+  const AddCameraDigit(this.digit);
+
+  @override
+  List<Object?> get props => [digit];
+}
+
+/// Remove last digit from camera input (Backspace)
+class BackspaceCameraDigit extends WallEvent {
+  const BackspaceCameraDigit();
+}
+
+/// Cancel camera edit (Escape or timeout)
+class CancelCameraEdit extends WallEvent {
+  const CancelCameraEdit();
+}
+
+/// Cycle to next camera prefix (Prefix key)
+class CycleCameraPrefix extends WallEvent {
+  const CycleCameraPrefix();
+}
+
+/// Execute CrossSwitch with current camera input
+class ExecuteCrossSwitch extends WallEvent {
+  const ExecuteCrossSwitch();
+}
+
+/// Update viewer state (from WebSocket events)
+class UpdateViewerCamera extends WallEvent {
+  final int viewerId;
+  final int cameraId;
+  final bool isLive;
+
+  const UpdateViewerCamera({
+    required this.viewerId,
+    required this.cameraId,
+    this.isLive = true,
+  });
+
+  @override
+  List<Object?> get props => [viewerId, cameraId, isLive];
+}
+
+/// Set alarm state on a viewer
+class SetViewerAlarm extends WallEvent {
+  final int viewerId;
+  final bool hasAlarm;
+
+  const SetViewerAlarm({
+    required this.viewerId,
+    required this.hasAlarm,
+  });
+
+  @override
+  List<Object?> get props => [viewerId, hasAlarm];
+}
+
+/// Set lock state on a viewer's camera
+class SetViewerLock extends WallEvent {
+  final int viewerId;
+  final bool isLocked;
+  final String? lockedBy;
+
+  const SetViewerLock({
+    required this.viewerId,
+    required this.isLocked,
+    this.lockedBy,
+  });
+
+  @override
+  List<Object?> get props => [viewerId, isLocked, lockedBy];
+}
+
+/// Toggle expanded section
+class ToggleSectionExpanded extends WallEvent {
+  final String sectionId;
+
+  const ToggleSectionExpanded(this.sectionId);
+
+  @override
+  List<Object?> get props => [sectionId];
+}