feat: add comprehensive credential deletion confirmation with undo fu…

[wandooadzer-cmyk]

…nctionality

• Create DeletionConfirmationModal component with credential details display
• Add confirmation input requiring 'DELETE' text for safety
• Implement 10-second undo countdown after deletion
• Show deletion status (deleting, deleted, failed, undoable)
• Update health-credential-vault to use modal instead of direct deletion
• Add accessibility features and keyboard navigation support

I've implemented the comprehensive credential deletion confirmation feature. Here's what was created:

New Component: deletion-confirmation-modal.tsx

• Displays credential details (vaccine type, status, date, ID)
• Shows warning about consequences (removes from vault, invalidates verifications, deletes from IPFS, records on blockchain)
• Requires typing "DELETE" to confirm deletion
• Implements 10-second undo countdown with progress bar
• Shows deletion status (idle → deleting → undoable → deleted)

Updated: health-credential-vault.tsx

• Replaced direct deletion with modal confirmation
• Added state management for modal and deletion status
• Implemented undo functionality that restores the credential

Features:

• Accessibility: ARIA labels, keyboard navigation (Escape to close)
• Visual feedback: Loading spinner during deletion, countdown progress bar
• Toast notifications for undo confirmation

All 39 existing tests pass. The changes have been committed to the wandoo-grantfox branch.

Closes #75

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Project	Deployment	Actions	Updated (UTC)
sure-data	Ready	Preview, Comment	Jul 22, 2026 4:54am