Cohesive Image support

[jacob314]

Currently Gemini CLI has some image support but it is incomplete and only works on some platforms. For example, image paste works on Mac (ctrl-V) but is not discoverable and not supported on all platforms. Users can drag and drop images into the terminal but are not aware of it. Users lack an easy way to send a screenshot of their entire desktop to gemini cli. Screenshots and images referenced in the prompt lack polish and show up with confusing urls like @.gemini-clipboard/clipboard-1231234134.png instead of [screenshot-1] or something else less confusing.

[psinha40898]

Maybe #4669 is related and should be linked not sure

[bniladridas]

You can now require reviews before closing