chore: add tm-core package with tag and tasks.json

packages/tm-core/tests/setup.ts

@@ -0,0 +1,22 @@
+/**
+ * Jest setup file for tm-core package
+ * This file is executed before running tests and can be used to configure
+ * testing utilities, global mocks, and test environment setup.
+ */
+
+// Configure test environment
+process.env.NODE_ENV = 'test';
+
+// Global test utilities can be added here
+// Custom matchers and global types can be defined here in the future
+
+// Set up any global mocks or configurations here
+beforeEach(() => {
+	// Reset any global state before each test
+	jest.clearAllMocks();
+});
+
+afterEach(() => {
+	// Clean up after each test
+	jest.restoreAllMocks();
+});