feat(tui): store/restore shell commands in message history

[yihuikhuu]

fixes #2006

before:

noshellhistory.mov

after:

withshellhistory.mov

[adamdotdevin]

this was actually intentional on my end; do you think they belong in history? i went back and forth on it

[yihuikhuu]

Ah fair enough. Thinking about it a bit more, it might pollute the history to add them in there.

It initially felt a bit odd - muscle memory kicked in and I pressed up to replay the command and ended up sending my previous message instead.

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For reference, I just checked the behaviour on Claude Code/Gemini:

• Claude Code has it in the history
• Gemini splits the history between the normal and bash mode which is interesting (though its a bit buggy - bash command history appears in normal mode when you start a new session)

[yihuikhuu]

Happy to close this since this was an intentional decision though, maybe can revisit if there is similar feedback by others

[adamdotdevin]

yeah, i'm inclined to leave the behavior as is until convinced otherwise by lots of requests

[yihuikhuu]

No worries, lets close this off