refactor!: make fat `meta-cli` the default #2520

Job	Run time
test-pre-commit	10m 19s
changes	6s
test-lsp	51s
test-website	1m 48s
test-docker (linux/amd64, ubuntu-latest)	35m 25s
test-meta-cli-compat (macos-14, source .venv/bin/activate)	29m 36s
test-full	45m 4s
	2h 3m 9s

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