shellrc: moved ai plugin to dotfiles-private #89

Job	Run time
linux/fedora:40/dev_single / bootstrap	33m 24s
linux/fedora:40/admin / bootstrap	32m 35s
linux/archlinux:latest/dev_single / bootstrap	14s
linux/fedora:39/admin / bootstrap	34m 6s
linux/fedora:39/dev_single / bootstrap	33m 59s
macos/macos-14/admin / bootstrap	12m 20s
linux/archlinux:latest/admin / bootstrap	11s
macos/macos-14/dev_single / bootstrap	11m 58s
macos/macos-13/admin / bootstrap	24m 1s
macos/macos-13/dev_single / bootstrap	23m 10s
	3h 25m 58s

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