refactor: add [Restriction] module #29706

Job	Run time
Nix (macos-latest)	1m 54s
Build (macos-latest, 5.1.x)	14m 9s
Nix (ubuntu-latest)	55s
Build (ubuntu-latest, 5.1.x)	8m 28s
Build (ocaml-variants.5.4.0+trunk, ubuntu-latest, true)	1m 26s
Coq 8.16.1	7m 6s
Format	1m 5s
Build (4.14.x, ubuntu-latest, true)	1m 28s
Documentation	54s
Build (4.14.x, macos-latest, true)	2m 33s
Build (5.1.x, macos-13, true)	4m 3s
Wasm_of_ocaml	12m 54s
Build microbenchmarks	2m 31s
Build (ocaml-base-compiler.4.14.2,system-msvc, windows-latest)	14m 42s
Create local opam switch (macos-latest, 5)	5m 11s
Build monorepo benchmark docker image	3m 41s
Create local opam switch (macos-latest, 4.14)	8m 0s
Build (ocaml-base-compiler.5.1.1,system-mingw, windows-latest)	8m 22s
Create local opam switch (ubuntu-latest, 5)	4m 59s
Build (4.08.x, ubuntu-latest, true)	1m 35s
Create local opam switch (ubuntu-latest, 4.14)	5m 2s
Build (4.04.x, ubuntu-latest, true, true)	4m 36s
Build (4.02.x, ubuntu-latest, true)	3m 57s
	1h 59m 31s

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