[SandObserver]

Summary

• Add @axe-core/playwright 4.14.0 as a dev dependency.
• Add e2e/accessibility.spec.js: scans the dashboard, each Settings section and the app editor in the light and dark themes against WCAG 2.2 A and AA, and fails on serious or critical findings.
• Ignore three rules on nodes inside widget frames (no main landmark, no heading, contrast against an assumed white backdrop), and the label-in-name rule on tiles that draw a fallback letter in place of an icon.

Testing
All green, including the new spec in Chromium and WebKit (24 tests, 57 s).

Changelog

Checklist

• Stays within the project constraints: one container, no runtime dependencies, no build step (see CONTRIBUTING.md).
• Tests added or updated for new logic, and the full suite, lint, and typechecks pass.
• Docs updated if behavior or configuration changed.