fix: resolve macos bun interop

Use Bun-safe Electron and child_process import patterns for macOS GitHub Actions tests.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

src/main/AryxAppService.ts

@@ -2,7 +2,7 @@ import { EventEmitter } from 'node:events';
 import { rm } from 'node:fs/promises';
 import { basename, dirname } from 'node:path';
 
-import { dialog, shell } from 'electron';
+import electron from 'electron';
 
 import type {
   AgentActivityEvent,
@@ -107,6 +107,8 @@ import {
   validateSessionToolingSelectionIds,
 } from '@main/sessionToolingConfig';
 
+const { dialog, shell } = electron;
+
 type AppServiceEvents = {
   'workspace-updated': [WorkspaceState];
   'session-event': [SessionEventRecord];

src/main/git/gitService.ts

@@ -1,11 +1,9 @@
-import * as childProcess from 'node:child_process';
+import childProcess, { type ExecFileException } from 'node:child_process';
 import { promisify } from 'node:util';
 
 import type { ProjectGitChangeSummary, ProjectGitCommitSummary, ProjectGitContext } from '@shared/domain/project';
 import { nowIso } from '@shared/utils/ids';
 
-type ExecFileException = childProcess.ExecFileException;
-
 const execFileAsync = promisify(childProcess.execFile);
 const GIT_TIMEOUT_MS = 5_000;
 

src/main/index.ts

@@ -1,11 +1,14 @@
-import { app, BrowserWindow } from 'electron';
+import electron from 'electron';
+import type { BrowserWindow as BrowserWindowType } from 'electron';
 
 import { registerIpcHandlers } from '@main/ipc/registerIpcHandlers';
 import { AryxAppService } from '@main/AryxAppService';
 import { createMainWindow } from '@main/windows/createMainWindow';
 import { applyTitleBarTheme } from '@main/windows/titleBarTheme';
 
-let mainWindow: BrowserWindow | undefined;
+const { app, BrowserWindow } = electron;
+
+let mainWindow: BrowserWindowType | undefined;
 let appService: AryxAppService | undefined;
 
 async function bootstrap(): Promise<void> {

src/main/ipc/registerIpcHandlers.ts

@@ -1,4 +1,5 @@
-import { BrowserWindow, ipcMain } from 'electron';
+import electron from 'electron';
+import type { BrowserWindow } from 'electron';
 
 import { ipcChannels } from '@shared/contracts/channels';
 import type {
@@ -27,6 +28,8 @@ import type { AppearanceTheme } from '@shared/domain/tooling';
 import { AryxAppService } from '@main/AryxAppService';
 import { applyTitleBarTheme } from '@main/windows/titleBarTheme';
 
+const { ipcMain } = electron;
+
 export function registerIpcHandlers(window: BrowserWindow, service: AryxAppService): void {
   ipcMain.handle(ipcChannels.describeSidecarCapabilities, () => service.describeSidecarCapabilities());
   ipcMain.handle(ipcChannels.refreshSidecarCapabilities, () => service.refreshSidecarCapabilities());

src/main/persistence/appPaths.ts

@@ -1,6 +1,8 @@
-import { app } from 'electron';
+import electron from 'electron';
 import { join } from 'node:path';
 
+const { app } = electron;
+
 export function getWorkspaceFilePath(): string {
   return join(app.getPath('userData'), 'workspace.json');
 }

src/main/sidecar/sidecarProcess.ts

@@ -1,4 +1,4 @@
-import { app } from 'electron';
+import electron from 'electron';
 import { spawn, type ChildProcessWithoutNullStreams } from 'node:child_process';
 
 import type {
@@ -23,6 +23,8 @@ import {
 import { TurnCancelledError } from '@main/sidecar/turnCancelledError';
 import { resolveSidecarProcess } from '@main/sidecar/sidecarRuntime';
 
+const { app } = electron;
+
 type PendingCommand =
   | ({
       processId: number;

src/main/windows/createMainWindow.ts

@@ -1,9 +1,12 @@
-import { app, BrowserWindow, Menu, shell } from 'electron';
+import electron from 'electron';
+import type { BrowserWindow as BrowserWindowType } from 'electron';
 import { join } from 'node:path';
 
 import { resolveWindowIconPath } from '@main/windows/appIcon';
 
-export function createMainWindow(): BrowserWindow {
+const { app, BrowserWindow, Menu, shell } = electron;
+
+export function createMainWindow(): BrowserWindowType {
   Menu.setApplicationMenu(null);
 
   const window = new BrowserWindow({

src/main/windows/titleBarTheme.ts

@@ -1,7 +1,10 @@
-import { nativeTheme, type BrowserWindow } from 'electron';
+import electron from 'electron';
+import type { BrowserWindow } from 'electron';
 
 import type { AppearanceTheme } from '@shared/domain/tooling';
 
+const { nativeTheme } = electron;
+
 interface TitleBarColors {
   backgroundColor: string;
   overlay: { color: string; symbolColor: string };