Feature Request: Add maximize, minimize, fullscreen, and setRect actions to the window tool

[mikejohnstonPremierinc]

Problem

The window tool currently supports list, switch, switch_latest, and close actions, but has no way to maximize, minimize, fullscreen, or resize/reposition the browser window. This is important because many web applications use responsive design — elements render differently depending on window size, and automation tests typically run maximized.

Current workarounds

• Chrome/Edge: Pass --start-maximized as a browser argument to start_browser
• Firefox: --start-maximized doesn't work. Must use -width/-height args with screen dimensions (requires a two-pass approach: launch → measure screen.availWidth/screen.availHeight → close → relaunch with measured values)
• Safari: No workaround available
• JavaScript approaches (window.resizeTo(), requestFullscreen(), F11 key press) all fail — they are silently ignored or rejected by browsers on main windows

These workarounds are browser-specific, fragile, and cannot achieve a true OS-level maximize on all browsers.

Proposed solution

Add new actions to the existing window tool:

Action	W3C WebDriver Endpoint	Selenium API
maximize	POST /session/{id}/window/maximize	driver.manage().window().maximize()
minimize	POST /session/{id}/window/minimize	driver.manage().window().minimize()
fullscreen	POST /session/{id}/window/fullscreen	driver.manage().window().fullscreen()
setRect	POST /session/{id}/window/rect	driver.manage().window().setRect({x, y, width, height})

All four are standard W3C WebDriver commands supported cross-browser. The server already has access to the driver object (e.g., cookie tools use driver.manage()), so the implementation would be straightforward — just map the new action values to the corresponding driver.manage().window() calls.

maximize alone would solve the most common need, but setRect would cover arbitrary resize/reposition, and minimize/fullscreen would round out the full W3C window management API.