🤖 fix: send terminal IPC events to correct window

The TERMINAL_CREATE handler was hardcoded to send events to mainWindow,
but terminal windows are separate BrowserWindows that call terminal.create().
This caused terminal output to be sent to the main app window instead of
the terminal window, resulting in a blank/blinking cursor with no prompt.

Fix: Use BrowserWindow.fromWebContents(event.sender) to get the actual
window that made the IPC call, so events are routed correctly.

Generated with `mux`

Author: sreya

src/services/ipcMain.ts

@@ -1479,8 +1479,7 @@ export class IpcMain {
     ipcMain.handle(IPC_CHANNELS.TERMINAL_CREATE, async (event, params: TerminalCreateParams) => {
       try {
         // Get the window that requested this terminal
-        // For now, all terminals use the main window (pop-out windows not yet implemented)
-        const senderWindow = mainWindow;
+        const senderWindow = BrowserWindow.fromWebContents(event.sender);
         if (!senderWindow) {
           throw new Error("Could not find sender window for terminal creation");
         }