Fix multi-window merge test expectations

Co-authored-by: Orca <help@stably.ai>

src/main/ipc/ssh.test.ts

@@ -482,7 +482,7 @@ describe('SSH IPC handlers', () => {
       reconnectAttempt: 0,
       remotePlatform: 'win32'
     })
-    expect(mockWindow.webContents.send).toHaveBeenCalledWith('ssh:state-changed', {
+    expect(broadcastToMainWindowsMock).toHaveBeenCalledWith('ssh:state-changed', {
       targetId: 'ssh-1',
       state: {
         targetId: 'ssh-1',

src/main/runtime/orca-runtime.test.ts

@@ -14302,6 +14302,7 @@ describe('OrcaRuntimeService', () => {
       terminalFitOverrideChanged: vi.fn(),
       terminalDriverChanged: vi.fn()
     })
+    const webContents = { send: vi.fn() }
     const send = vi.fn((_channel: string, payload: { requestId: string }) => {
       runtime.syncWindowGraph(1, {
         tabs: [],
@@ -14329,7 +14330,7 @@ describe('OrcaRuntimeService', () => {
       })
       ipcMain.emit(
         'terminal:tabCreateReply',
-        {},
+        { sender: webContents },
         { requestId: payload.requestId, tabId: 'tab-renderer', title: 'Terminal' }
       )
     })
@@ -14337,8 +14338,9 @@ describe('OrcaRuntimeService', () => {
     runtime.syncWindowGraph(1, { tabs: [], leaves: [] })
     electronMocks.BrowserWindow.fromId.mockReturnValue({
       isDestroyed: () => false,
-      webContents: { send }
+      webContents
     })
+    webContents.send = send
 
     const [first, second] = await Promise.all([
       runtime.createMobileSessionTerminal(`id:${TEST_WORKTREE_ID}`, {
@@ -14394,12 +14396,13 @@ describe('OrcaRuntimeService', () => {
       terminalFitOverrideChanged: vi.fn(),
       terminalDriverChanged: vi.fn()
     })
+    const webContents = { send: vi.fn() }
     const send = vi.fn((_channel: string, payload: { requestId: string; worktreeId: string }) => {
       const parentTabId =
         payload.worktreeId === TEST_WORKTREE_ID ? 'tab-renderer-a' : 'tab-renderer-b'
       ipcMain.emit(
         'terminal:tabCreateReply',
-        {},
+        { sender: webContents },
         { requestId: payload.requestId, tabId: parentTabId, title: 'Terminal' }
       )
     })
@@ -14407,8 +14410,9 @@ describe('OrcaRuntimeService', () => {
     runtime.syncWindowGraph(1, { tabs: [], leaves: [] })
     electronMocks.BrowserWindow.fromId.mockReturnValue({
       isDestroyed: () => false,
-      webContents: { send }
+      webContents
     })
+    webContents.send = send
 
     const firstCreate = runtime.createMobileSessionTerminal(`id:${TEST_WORKTREE_ID}`, {
       activate: false,
@@ -14498,10 +14502,11 @@ describe('OrcaRuntimeService', () => {
       })
       // Why: reply with a tabId but never sync a matching surface graph, so
       // waitForMobileTerminalSurface times out and the rollback path runs.
+      const webContents = { send: vi.fn() }
       const send = vi.fn((_channel: string, payload: { requestId: string }) => {
         ipcMain.emit(
           'terminal:tabCreateReply',
-          {},
+          { sender: webContents },
           { requestId: payload.requestId, tabId: 'tab-ghost', title: 'Terminal' }
         )
       })
@@ -14509,8 +14514,9 @@ describe('OrcaRuntimeService', () => {
       runtime.syncWindowGraph(1, { tabs: [], leaves: [] })
       electronMocks.BrowserWindow.fromId.mockReturnValue({
         isDestroyed: () => false,
-        webContents: { send }
+        webContents
       })
+      webContents.send = send
 
       const pending = runtime.createMobileSessionTerminal(`id:${TEST_WORKTREE_ID}`, {
         activate: false