refactor: migrate testing framework from Karma/Jasmine to Vitest with Angular support

tsconfig.spec.json

@@ -1,10 +1,10 @@
-/* To learn more about Typescript configuration file: https://www.typescriptlang.org/docs/handbook/tsconfig-json.html. */
-/* To learn more about Angular compiler options: https://angular.dev/reference/configs/angular-compiler-options. */
 {
 	"extends": "./tsconfig.json",
 	"compilerOptions": {
 		"outDir": "./out-tsc/spec",
-		"types": ["jasmine"]
+		"types": ["jasmine", "vitest/globals"],
+		"target": "es2022"
 	},
-	"include": ["src/**/*.ts"]
+	"include": ["src/**/*.ts"],
+	"files": ["src/test-setup.ts"]
 }