Remove framework plugins from dependencies

[connor-baer]

Purpose

Over the years, Foundry has included more and more ESLint plugins for popular libraries. This has significantly increased its install size and led to several other issues:

• Dependency resolution: Occasionally, Foundry/ESLint wouldn't be able to resolve plugins. I was never able to determine why, but it usually required explicitly installing the plugin in the host project.
• Version lock-in: ESLint plugins usually follow the version of the corresponding library. This could block developers from upgrading the library if Foundry hadn't been upgraded to the latest version of the ESLint plugin. For example, the latest version of Next.js and its ESLint plugin is 14.x; however, Foundry still ships with v13.4 of the plugin.
• Framework detection: Foundry would only enable a plugin if it detected the corresponding framework in the package.json file. This doesn't work well in monorepos.

Plugins:

Approach and changes

• Remove the ESLint plugins for frameworks (Cypress, Emotion, Jest, Next, Playwright, Storybook, Testing Library) from the dependencies and ask developers to install them explicitly
• Detect the installed ESLint plugins instead of frameworks to enable the shared configs
• Log warnings if a recommended ESLint plugin is not installed or if an untested version is installed

Definition of done

• Development completed
• Reviewers assigned
• Unit and integration tests

[changeset-bot]

🦋 Changeset detected

Latest commit: 26d390a

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@sumup/foundry	Major

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[codecov]

Codecov Report

Attention: 53 lines in your changes are missing coverage. Please review.

Comparison is base (c721ad6) 63.50% compared to head (26d390a) 64.30%.

Files	Patch %	Lines
src/cli/debug.ts	0.00%	26 Missing and 1 partial ⚠️
src/cli/index.ts	0.00%	15 Missing ⚠️
src/configs/eslint/config.ts	83.33%	7 Missing ⚠️
src/lib/options.ts	96.49%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             next     #923      +/-   ##
==========================================
+ Coverage   63.50%   64.30%   +0.79%     
==========================================
  Files          26       27       +1     
  Lines        1973     2132     +159     
  Branches       95      113      +18     
==========================================
+ Hits         1253     1371     +118     
- Misses        712      752      +40     
- Partials        8        9       +1     

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