chore(playwright-migration): remove legacy Cypress files and imports in migrated projects

- Remove *.cy.ts and cypress.env from nextjs-ssr and federated-css-react-ssr
- Switch specs to playwright fixtures/constants/selectors
- Inline TypeScript app test data; drop CommonTestData and cypress-e2e deps
- Add playwright-e2e/types/cssAttr to replace Cypress cssAttr

Author: ScriptedAlchemy

federated-css-react-ssr/e2e/common-checks.spec.ts

@@ -1,7 +1,7 @@
 import { expect, test } from '@playwright/test';
 import type { Page } from '@playwright/test';
 import { selectors } from '../../playwright-e2e/common/selectors';
-import { CssAttr } from '../../cypress-e2e/types/cssAttr';
+import { CssAttr } from '../../playwright-e2e/types/cssAttr';
 import { Constants } from '../../playwright-e2e/fixtures/constants';
 
 const {

federated-css-react-ssr/e2e/commonChecks.cy.ts

@@ -1,6 +1,6 @@
 import { test, expect } from '@playwright/test';
 import { selectors } from '../../playwright-e2e/common/selectors';
-import { CssAttr } from '../../cypress-e2e/types/cssAttr';
+import { CssAttr } from '../../playwright-e2e/types/cssAttr';
 import { Constants } from '../../playwright-e2e/fixtures/constants';
 
 type ButtonConfig = {