feat(accessibility): Enhance accessibility features and validation scripts - Added semantic IDs to nodes in the web semantics DOM manager for better accessibility tracking. - Introduced a new script validate-accessibility-foundation.mjs for validating accessibility manifests and work packages. - Created web-accessibility-probe.sh to run accessibility probes in a headless Chrome environment. - Updated smoke tests to include new accessibility validation gates for screen-reader evidence and native accessibility client evidence. - Adjusted budgets in various MBT files to accommodate new accessibility features and ensure compliance with updated requirements. - Updated submodule reference for the window project. | 