Accessibility implementation gaps

[harperreed]

Problem

While some accessibility features are present, there are critical gaps:

• Missing accessibilityLabel and other a11y props on many interactive elements
• Contrast issues with some color combinations in the theme definitions
• Missing focus management for modals and dialogs
• Inconsistent use of semantic roles and states

Impact

The app may not be usable by users with disabilities, failing WCAG guidelines.

Acceptance Criteria

• Add proper accessibilityLabel and a11y props to all interactive elements
• Fix contrast issues in theme definitions
• Implement proper focus management for modals and dialogs
• Ensure consistent use of semantic roles and states
• Test with screen readers

Priority

High - accessibility is a fundamental requirement