research: compare GitUI vs lazygit

[tctibbs]

Investigate GitUI as a potential alternative or complement to lazygit.

GitUI

• https://github.com/gitui-org/gitui
• Fastest git TUI, benchmarked against repos with 900k+ commits
• Rust-based
• Five main tabs: Status, Logs, Files, Stashing, Stashes
• Supports staging by files, hunks, or individual lines

Current Setup

• Using lazygit via tmux popup (prefix + g)

Tasks

• Install and test GitUI
• Compare performance with lazygit
• Compare UX/features
• Decide: replace, add alongside, or skip