test: add component test for UUIDTag

src/components/common/UUIDTag.cy.js

@@ -0,0 +1,24 @@
+import UUIDTag from './UUIDTag';
+
+describe('UUIDTag', () => {
+  beforeEach(() => {
+    cy.viewport(500, 500);
+  });
+
+  it('renders correctly with a valid UUID string', () => {
+    const testId = '12345678';
+    cy.mount(<UUIDTag uuid={testId} />);
+    cy.contains('1234...5678').should('exist');
+  });
+
+  it('handles non-string UUID values gracefully', () => {
+    const testIdNonString = 12345678;
+    cy.mount(<UUIDTag uuid={testIdNonString} />);
+    cy.contains('1234...5678').should('exist');
+  });
+
+  it('displays a fallback for undefined UUID', () => {
+    cy.mount(<UUIDTag uuid={undefined} />);
+    cy.contains('...').should('exist');
+  });
+});