move to vitest (#18)

* feat: move to vitest

* fix: lock file

* fix: tests running sequentially on same port

* fix lock file

---------

Co-authored-by: Paul Carleton <paulcarletonjr@gmail.com>

package.json

@@ -12,7 +12,8 @@
   },
   "scripts": {
     "start": "tsx src/index.ts",
-    "test": "jest",
+    "test": "vitest run",
+    "test:watch": "vitest",
     "build": "tsdown src/index.ts --minify --clean --target node20",
     "lint": "eslint src/ examples/ && prettier --check .",
     "lint:fix": "eslint src/ examples/ --fix && prettier --write .",
@@ -29,19 +30,17 @@
   },
   "devDependencies": {
     "@eslint/js": "^9.8.0",
-    "@jest/globals": "^29.7.0",
     "@types/express": "^5.0.3",
-    "@types/jest": "^29.5.8",
+    "@types/node": "^22.10.2",
     "@typescript/native-preview": "^7.0.0-dev.20251111.1",
     "eslint": "^9.8.0",
     "eslint-config-prettier": "^10.1.8",
-    "jest": "^29.7.0",
     "prettier": "3.6.2",
-    "ts-jest": "^29.1.1",
     "tsdown": "^0.16.2",
     "tsx": "^4.7.0",
     "typescript": "^5.5.4",
-    "typescript-eslint": "^8.0.0"
+    "typescript-eslint": "^8.0.0",
+    "vitest": "^2.1.8"
   },
   "dependencies": {
     "@modelcontextprotocol/sdk": "^1.20.1",