feat(control): таймер сессии поверх сцены

Отдельное окно countdown с «Показать игрокам»; на превью — move/resize/rotate, на презентации тот же layout.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/shared/ipc/contracts.ts

@@ -55,6 +55,8 @@ import type {
   SceneTrapsState,
   SceneViewEvent,
   SceneViewState,
+  SessionTimerEvent,
+  SessionTimerState,
   TokenId,
   TokenPathSessionEvent,
   TokenPathSessionState,
@@ -163,6 +165,8 @@ export const ipcChannels = {
     closeMaterials: 'windows.closeMaterials',
     openPlaylists: 'windows.openPlaylists',
     closePlaylists: 'windows.closePlaylists',
+    openTimer: 'windows.openTimer',
+    closeTimer: 'windows.closeTimer',
     openNpcsEditor: 'windows.openNpcsEditor',
     closeNpcsEditor: 'windows.closeNpcsEditor',
     openNpcs: 'windows.openNpcs',
@@ -200,6 +204,11 @@ export const ipcChannels = {
     dispatch: 'npcsOverlay.dispatch',
     stateChanged: 'npcsOverlay.stateChanged',
   },
+  sessionTimer: {
+    getState: 'sessionTimer.getState',
+    dispatch: 'sessionTimer.dispatch',
+    stateChanged: 'sessionTimer.stateChanged',
+  },
   sceneDarkness: {
     getState: 'sceneDarkness.getState',
     dispatch: 'sceneDarkness.dispatch',
@@ -357,6 +366,7 @@ export type IpcEventMap = {
   [ipcChannels.effects.stateChanged]: { state: EffectsState };
   [ipcChannels.materialsOverlay.stateChanged]: { state: MaterialsOverlayState };
   [ipcChannels.npcsOverlay.stateChanged]: { state: NpcsOverlayState };
+  [ipcChannels.sessionTimer.stateChanged]: { state: SessionTimerState };
   [ipcChannels.sceneDarkness.stateChanged]: { state: SceneDarknessState };
   [ipcChannels.sceneMarker.stateChanged]: { state: SceneMarkerState };
   [ipcChannels.sceneTraps.stateChanged]: { state: SceneTrapsState };
@@ -786,6 +796,14 @@ export type IpcInvokeMap = {
     req: Record<string, never>;
     res: { ok: true };
   };
+  [ipcChannels.windows.openTimer]: {
+    req: Record<string, never>;
+    res: { ok: true };
+  };
+  [ipcChannels.windows.closeTimer]: {
+    req: Record<string, never>;
+    res: { ok: true };
+  };
   [ipcChannels.windows.openNpcsEditor]: {
     req: Record<string, never>;
     res: { ok: true };
@@ -842,6 +860,14 @@ export type IpcInvokeMap = {
     req: { event: NpcsOverlayEvent };
     res: { ok: true };
   };
+  [ipcChannels.sessionTimer.getState]: {
+    req: Record<string, never>;
+    res: { state: SessionTimerState };
+  };
+  [ipcChannels.sessionTimer.dispatch]: {
+    req: { event: SessionTimerEvent };
+    res: { state: SessionTimerState };
+  };
   [ipcChannels.effects.getState]: {
     req: Record<string, never>;
     res: { state: EffectsState };
@@ -1094,6 +1120,7 @@ export type LegacyIpcEventMap = {
   [ipcChannels.effects.stateChanged]: { state: EffectsState };
   [ipcChannels.materialsOverlay.stateChanged]: { state: MaterialsOverlayState };
   [ipcChannels.npcsOverlay.stateChanged]: { state: NpcsOverlayState };
+  [ipcChannels.sessionTimer.stateChanged]: { state: SessionTimerState };
   [ipcChannels.sceneDarkness.stateChanged]: { state: SceneDarknessState };
   [ipcChannels.sceneMarker.stateChanged]: { state: SceneMarkerState };
   [ipcChannels.sceneTraps.stateChanged]: { state: SceneTrapsState };