feat: Update CLAUDE.md and add playwright-cli skills

CLAUDE.md

@@ -131,9 +131,10 @@ See subproject CLAUDE.md files for component-specific key files.
 - Order functions top-down by abstraction (public API first, helpers below)
 - Keep `CLAUDE.md` files updated when introducing architectural changes
 
-### Playwright MCP
-- When using the Playwright MCP, an authentication is needed
+### Playwright CLI
+- When using the Playwright CLI, an authentication is needed
 - Use the following credentials for testing:
   - Username: denis
   - Password: 123
 - The login is 2-step: first submit the username, then the password on the next screen
+- Prefer the playwright-cli always over the Playwright MCP