* initial implementation of test documentation in spec file with AI-assisted prompt from Claude and linter script
* update snapshots
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Co-authored-by: Mattermost Build <build@mattermost.com>
* move "e2e-tests/playwright/test" to "e2e-tests/playwright/test" and expose "ensurePluginsLoaded"
* add test setup, and expose ensurePluginsLoaded and ensureServerDeployment to pw