Translate Cypress support comments and add command JSDoc

Co-Authored-By: Codex <codex@openai.com>

cypress/support/commands.js

@@ -16,15 +16,25 @@
 // -- This is a parent command --
 import '@4tw/cypress-drag-drop'
 
+/**
+ * Sets authentication cookies to simulate a logged-in user.
+ *
+ * @returns {void}
+ */
 Cypress.Commands.add('login', () => {
   cy.setCookie('luciaToken', 'fake-access-token-for-testing');
   cy.setCookie('isLuciaLoggedIn', 'true');
 });
-// 呼叫方式: cy.login()
+// Usage: cy.login()
 // -- This is a child command --
-// 點擊空白區關閉 Modal，cy.closePopup()
+// Click a blank area to close an opened modal: cy.closePopup()
+/**
+ * Closes the active popup by clicking the top-left area of the page.
+ *
+ * @returns {void}
+ */
 Cypress.Commands.add('closePopup', () => {
-  // 點擊 body 以外的區域，使用 force: true 強制觸發點擊
+  // Trigger a forced click to close modal overlays consistently.
   cy.get('body').click({ position: 'topLeft'});
   cy.wait(1000);
 })

cypress/support/e2e.js

@@ -27,4 +27,4 @@ Cypress.on('uncaught:exception', (err, runnable) => {
 
 // Alternatively you can use CommonJS syntax:
 // require('./commands')
-require('cypress-xpath') // 順利執行.trigger('mouseup')
+require('cypress-xpath') // Enables xpath helpers used in pointer event checks.