feat: add system tests support

fix: search-patches is a macro, work with that.

fix: module moves to ruthless subfolder

fix: ruhless utils module name

chore: add utils for searching patches.

chore: move channel to ruthless-guix

feat: add codex-acp

feat: add lspce, slint viewer and lsp

feat: add claude-code cli and codex

feat: add ldd

changes I lost track of...

fix: remove nonexistent variable references

feat: add c wrapper replacement for sh wrappers

Replace a sh wrapper by a binary wrapper.
Call the original shell script.

fix: make sure the environment package gets grafted inputs

fix: shebang in environment wrapper files

ruther: Remove vhdl-ls.

Now it's in guix channel.

ruther: Remove ripgrep-all.

Now it's in guix channel.

feat(environment): add package->application-environment for single-app environments

fix(environment): actually support rename-=unction for renaming binaries

fix(environment): check directory exists before copying files