fix: control UX — no default tool, launch loader, NPC layout

Deselect effect tools by default and on re-click, block the editor during session launch, and fix NPC overlay/window empty-state layout.

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

app/main/effects/effectsStore.test.ts

@@ -3,6 +3,11 @@ import test from 'node:test';
 
 import { EffectsStore } from './effectsStore';
 
+void test('defaultTool: при старте инструмент не выбран', () => {
+  const store = new EffectsStore();
+  assert.equal(store.getState().tool.tool, 'none');
+});
+
 void test('pruneExpired: лёд не удаляется по времени', () => {
   const store = new EffectsStore();
   const createdAtMs = Date.now() - 365 * 24 * 60 * 60 * 1000;

app/main/effects/effectsStore.ts

@@ -8,7 +8,12 @@ function nowMs(): number {
 }
 
 function defaultTool(): EffectToolState {
-  return { tool: 'fog', radiusN: 0.08, intensity: 0.6 };
+  return { tool: 'none', radiusN: 0.08, intensity: 0.6 };
+}
+
+/** Сброс выбранного инструмента (при старте сессии). */
+export function effectsDefaultTool(): EffectToolState {
+  return defaultTool();
 }
 
 export class EffectsStore {

app/main/index.ts

@@ -19,7 +19,7 @@ import {
 } from '../shared/project/projectZipExtension';
 import type { Project } from '../shared/types';
 
-import { EffectsStore } from './effects/effectsStore';
+import { EffectsStore, effectsDefaultTool } from './effects/effectsStore';
 import { SceneDarknessStore } from './effects/sceneDarknessStore';
 import { SceneTrapsStore } from './sceneTraps/sceneTrapsStore';
 import { installIpcRouter, registerHandler, setLicenseAssert } from './ipc/router';
@@ -378,6 +378,7 @@ async function main() {
   registerHandler(ipcChannels.windows.openMultiWindow, () => {
     sceneDarknessStore.resetSession();
     sceneTrapsStore.resetSession();
+    effectsStore.dispatch({ kind: 'tool.set', tool: effectsDefaultTool() });
     openMultiWindow();
     const project = projectStore.getOpenProject();
     if (project) {
@@ -386,6 +387,7 @@ async function main() {
     }
     emitSceneDarknessState();
     emitSceneTrapsState();
+    emitEffectsState();
     return { ok: true };
   });
   registerHandler(ipcChannels.windows.closeMultiWindow, () => {