[Feature Request] Sticky/floating input prompt at terminal bottom

FEAtURE_REQUEST
Feature request: sticky/floating input prompt

Currently input box scrolls with conversation history. On long agent runs (tool calls, plan output, big diffs), when Claude asks mid-run question, input jumps far down. Must scroll to find it, answer, scroll back. Breaks flow.

Ask: pin input as floating overlay at bottom of terminal — like ChatGPT/Claude.ai web UI. Always visible, fixed position, conversation scrolls behind it.

Config idea:
{
"ui": {
"promptPosition": "sticky-bottom" // or "sticky-top" | "inline" (default)
}
}

Why matters:

• Long multi-step agent sessions hide input off-screen
• Mid-run clarification questions miss — user not notice prompt waiting
• Mobile/small terminal windows hit worst
• Matches web UI expectation — parity across CLI/IDE/web

Nice-to-have: visual indicator (pulse/color) when Claude waiting on input.

Environment Info

• Platform: darwin
• Terminal: vscode
• Version: 2.1.111
• Feedback ID: c57bd2d7-7661-4ea3-83b5-d9e22bf48198