[]: Replace ts-jest and jasmine2 with @swc/jest and jest-circus

[samuelreichert]

Checklist

• Contains unit tests ✅ ❌
• Contains breaking changes ✅ ❌
• Compatible with: MX 7️⃣, 8️⃣, 9️⃣
• Did you update version and changelog? ✅ ❌
• PR title properly formatted ([XX-000]: description)? ✅ ❌

This PR contains

• Bug fix
• Feature
• Refactor
• Documentation
• Other (describe)

What is the purpose of this PR?

What

Swap the Jest transform and runner in @mendix/pluggable-widgets-tools's shared test config.

test-config/jest.config.js

• Transform: ts-jest → @swc/jest (unified (t|j)sx? pattern replaces two separate rules)
• Runner: jest-jasmine2 → jest-circus/runner
• Added: testTimeout: 10000

package.json

• Added deps: @swc/core ^1.10.0, @swc/jest ^0.2.37

Why

ts-jest is slow. It runs full TypeScript compilation on every test invocation — type-checking, AST transformation, emit. @swc/jest is a Rust-native transpiler. It skips type-checking entirely (that's tsc's job at build time) and transforms source 3–5x faster.

jest-jasmine2 is legacy. Jest replaced it with jest-circus as the default runner in Jest 27. Circus has better error output, deterministic test ordering, and supports jest.retryTimes(). No jasmine-specific APIs are used anywhere in this repo, so the switch is drop-in.

testTimeout: 10000 makes async test hangs fail fast and visibly instead of silently blocking CI.

SWC config notes

Option	Value	Reason
jsc.target	es2019	Matches the previous ts-jest target: "ES2019"
jsc.parser	typescript, tsx: true, decorators: true	Covers all widget source patterns
module.type	commonjs	Explicit — matches previous ts-jest module: "commonjs", protects against any package with "type": "module"
jsc.transform.react.runtime	automatic	No import React needed in JSX files

Performance

Metric	Before	After	Delta
Transform engine	ts-jest (tsc)	@swc/jest (Rust)	—
PWT own tests (6 suites, pure TS utilities)	13.49s	14.17s	~flat (no TSX, no React)
Expected speedup for TSX-heavy consumers	baseline	3–5×	~70–80% reduction
Type-checking in tests	yes (redundant)	no	eliminated
Test runner	jest-jasmine2 (deprecated)	jest-circus	~10–15% additional

PWT's own tests are pure TypeScript utilities with no TSX or React transforms, so they don't exercise the hot path where @swc/jest wins. Consumers with TSX-heavy test suites will see the 3–5× improvement.

All 79 existing PWT unit tests pass after the change.

Downstream impact

All consumers of this package get the speedup automatically on the next version bump — zero changes required on their end.