fzf Reload, Event Bindings, and Dynamic Sources/Update preview label dynamically

Show context-sensitive labels as focus moves.

Section: Transform actions

Update preview label dynamically

bash
bash
printf '%s\n' a b c | fzf --preview 'echo {}' --bind 'focus:transform-preview-label:echo Preview'
Explanation

Small UX improvement for custom UIs and dashboards.

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Compare similar commands or jump into common fixes when this command is part of a bigger troubleshooting path.

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