Clarify outputDir behavior for explicit relative --filename paths

[zwrong]

Summary

PLAYWRIGHT_MCP_OUTPUT_DIR redirects automatically named artifacts, but explicit relative --filename values are currently saved relative to the current working directory. It would be useful to clarify whether that is the intended long-term behavior.

Current observed behavior

PLAYWRIGHT_MCP_OUTPUT_DIR=.playwright-cli playwright-cli screenshot
# writes .playwright-cli/page-...png

PLAYWRIGHT_MCP_OUTPUT_DIR=.playwright-cli playwright-cli screenshot --filename=page.png
# writes ./page.png

Options

• Keep the current behavior: --filename is a fully user-controlled explicit path.
• Add a CLI option such as --output-dir=.playwright-cli for users who want an explicit output directory.
• Add a clearer CLI-specific environment variable such as PLAYWRIGHT_CLI_OUTPUT_DIR.
• Change how relative --filename values are resolved, though that could break existing scripts and is probably not the best default.

[pavelfeldman]

Could you re-formulate it in a form of an issue or a feature request? What you expected to see, what went wrong, etc. Unclear why you are using the env variables at the first place.