Migrate Jest tooling to SWC

[Copilot]

Migrated test transpilation from ts-jest to SWC to align with the repo’s ESNext setup and speed up builds.

• Tooling: Replaced ts-jest preset with @swc/jest transform and added shared .swcrc tuned for TS/React with ESM defaults and Jest CJS output.
• Dependencies: Added @swc/core/@swc/jest, removed ts-jest, refreshed lockfile.

Example transform configuration:

// jest.config.js
module.exports = {
  testEnvironment: 'jsdom',
  transform: {
    '^.+\\.(t|j)sx?$': [
      '@swc/jest',
      {
        module: { type: 'commonjs' }
      }
    ]
  }
};

Original prompt

Migrate to SWC

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[leecalcote]

Builds should speed up just a little.

This brings the ecosystem's build tooling in alignment.

[Copilot]

Pull request overview

This pull request migrates the Jest test transpilation infrastructure from ts-jest to SWC, aligning with the repository's ESNext build setup and improving build performance. The migration replaces ts-jest with @swc/jest and introduces a shared .swcrc configuration file.

Changes:

• Replaced ts-jest with @swc/core and @swc/jest in dependencies
• Updated jest.config.js to use @swc/jest transformer with CommonJS module output
• Added .swcrc configuration file with TypeScript/React support and ESM defaults

Reviewed changes

Copilot reviewed 2 out of 4 changed files in this pull request and generated 1 comment.

File	Description
package.json	Replaced ts-jest with @swc/core (^1.10.12) and @swc/jest (^0.2.37)
package-lock.json	Updated dependency tree with SWC packages and removed ts-jest related dependencies (bs-logger, handlebars, make-error, etc.)
jest.config.js	Replaced ts-jest preset with @swc/jest transform configuration targeting CommonJS modules
.swcrc	Added SWC configuration with ES2021 target, TypeScript/React support, and ES6 module type

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