Add Support for pasting images directly into prompt

[umairshahid-1]

Is your feature request related to a problem? Please describe.
Add support for directly pasting images from the clipboard into Letta Code, via a dedicated shortcut Alt + V command. This should work similarly to existing implementations in tools like Codex CLI and Claude Code, where clipboard images can be inserted without requiring manual file handling or Ctrl + V, which just doesn't work now.

Why is this needed?
Currently, the Available workaround is to manually save the image to disk and then reference the file in the command. This interrupts the workflow, adds unnecessary steps, and becomes especially inefficient during rapid iterations or frequent image-based interactions.

[cpacker]

@umairshahid-1 what terminal are you using, and what platform?

We have image support but it doesn't seem to work on all terminals yet. For example, in Cursor's embedded terminal, hitting CMD+V on a MacBook gives me this:

But I know on some terms like Ghostty, it doesn't seem to work yet (we can fix this!)

[umairshahid-1]

I am using Windows PowerShell and also try to attach image on Windows Command Prompt.It just not support attaching images.