Feat/depcheck

[cedric07]

Voir ici : https://www.notion.so/beapi/Test-Depcheck-C-dric-Avril-2026-3500865393b9809da840dcdb6fe429eb

---

Note

Medium Risk
Touches the build toolchain (Webpack sass-loader resolution, SCSS imports, and devDependencies), which could break styling/builds if resolution differs between environments. No runtime/application logic changes beyond asset pipeline behavior.

Overview
Adds depcheck tooling via a new .depcheckrc ignore list and a yarn depcheck script to better validate dependency usage in this Webpack/Stylelint-based setup.

Updates the SCSS pipeline to support package-style Sass imports by adding sass-loader loadPaths and switching Fontsource @use statements to module paths; also removes style-loader from devDependencies and simplifies webpack-theme-json-plugin logging by dropping chalk.

^{Reviewed by Cursor Bugbot for commit f90784f. Bugbot is set up for automated code reviews on this repo. Configure here.}