- Created lib/validation.ts with validation utilities for all form inputs
- Added validation for list titles, item titles, colors, dates, tags, descriptions, and notes
- Implemented inline validation with real-time error feedback in ListForm
- Enhanced ItemForm with comprehensive validation for all fields
- Updated InlineItemCreate with validation
- Added input sanitization to prevent XSS attacks
- Updated server actions to use validation utilities
- Added maxLength attributes to prevent excessive input
- Improved accessibility with aria-invalid and aria-describedby attributes
- Added visual feedback for validation errors with red borders
- Validates Requirements 1.1 and 2.1
Paul Bailey
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