perf(test): replace ts-jest/jasmine2 with @swc/jest/jest-circus

Switch Jest transform from ts-jest to @swc/jest (3-5x faster, Rust-native,
no type-checking overhead) and runner from jest-jasmine2 to jest-circus
(default since Jest 27, better errors, supports retryTimes). Add explicit
testTimeout of 10000ms. Drop separate jsx transform — @swc/jest handles
both .ts and .js extensions via unified pattern.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: samuelreichert

packages/pluggable-widgets-tools/package.json

@@ -99,6 +99,8 @@
     "semver": "^7.3.2",
     "shelljs": "^0.8.4",
     "shx": "^0.3.3",
+    "@swc/core": "^1.10.0",
+    "@swc/jest": "^0.2.37",
     "ts-jest": "^29.2.5",
     "ts-node": "^10.9.2",
     "typescript": "^5.6.3",

packages/pluggable-widgets-tools/test-config/jest.config.js

@@ -4,18 +4,23 @@ const projectDir = process.cwd();
 
 module.exports = {
     clearMocks: true,
-    testRunner: "jest-jasmine2",
+    testRunner: "jest-circus/runner",
+    testTimeout: 10000,
     rootDir: join(projectDir, "src"),
     setupFilesAfterEnv: [join(__dirname, "test-index.js")],
     testMatch: ["<rootDir>/**/*.spec.{js,jsx,ts,tsx}"],
     transform: {
-        "^.+\\.tsx?$": [
-            "ts-jest",
+        "^.+\\.(t|j)sx?$": [
+            "@swc/jest",
             {
-                tsconfig: { module: "commonjs", target: "ES2019" },
+                jsc: {
+                    transform: { react: { runtime: "automatic" } },
+                    parser: { syntax: "typescript", tsx: true, decorators: true },
+                    target: "es2019"
+                },
+                module: { type: "commonjs" }
             }
         ],
-        "^.+\\.jsx?$": join(__dirname, "transform.js"),
         "^.+\\.svg$": join(__dirname, "jest-svg-transformer")
     },
     moduleNameMapper: {