chore(deps): upgrade Rslint to v0.8.1

[chenjiahan]

Summary

• Upgrade @rslint/core to v0.8.1 and refresh the lockfile where applicable.
• Use Rslint's built-in globals.rstest and environment globals instead of broadly disabling no-undef for tests.
• Preserve the existing recommended-rule coverage under Rslint 0.8.
• Resolve newly surfaced lint diagnostics where needed.
• Verify the relevant lint checks pass.

Related Links

• https://github.com/web-infra-dev/rslint/releases/tag/v0.8.1

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[chatgpt-codex-connector]

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