[Feature Request] Add window title indicator for Claude Code prompt state (green/red/yellow LED)

Bug Description
it would be most excellent if, when I was prommpted to hit enter (several hundred times per day) the Title of the claude window would have an indicator LED green (normal) red (error) yellow (waiting for homer simpson to hit the enter button). the context is say I have a few claude contexts rolling and i dont know which one is holding the prompt.

Environment Info

• Platform: darwin
• Terminal: iTerm.app
• Version: 2.1.158
• Feedback ID: 8d4508fa-157e-49f3-a4f5-7dc413c3976e

Errors

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