fzf's completion.bash rewraps the completions of ~76 commands on every
interactive shell start, costing ~25ms once bash-completion is loaded. Keep
only the key bindings (Ctrl-R, Ctrl-T, Alt-C); **<Tab> fuzzy completion goes.
`starship init bash` only prints a line that runs starship again with
--print-full-init, so call that directly and start the binary once.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
