fix: Update playwright after tool name changes

[echarrod]

Pull Request Checklist

• I have read and followed the CONTRIBUTING.md guidelines.
• My contribution adds a new instruction, prompt, or chat mode file in the correct directory.
• The file follows the required naming convention.
• The content is clearly structured and follows the example format.
• I have tested my instructions, prompt, or chat mode with GitHub Copilot.
• I have run node update-readme.js and verified that README.md is up to date.

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Description

Update tool names after VSCode updates, screenshots:

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Type of Contribution

• New instruction file.
• New prompt file.
• New chat mode file.
• Other (please specify):
  • Tool name update

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Additional Notes

Can look at other prompts, if this one is accepted

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By submitting this pull request, I confirm that my contribution abides by the Code of Conduct and will be licensed under the MIT License.

[Copilot]

Pull Request Overview

This PR updates the Playwright test generation prompt file to reflect recent tool name changes in VSCode. The changes ensure the prompt continues to function correctly with the updated tool naming conventions.

Key Changes

• Updated tool references to use the new namespaced naming convention (e.g., codebase → search/codebase, searchResults → search/searchResults)
• Removed deprecated tool names (findTestFiles)
• Updated model version from 'Claude Sonnet 4' to 'Claude Sonnet 4.5'
• Changed Playwright tool reference to use wildcard pattern (playwright/*)