[S3-5] Bulk/Issues UI component bUnit tests — AttachmentCard, BulkConfirmationModal + 2 more

[mpaulosky]

Summary

Write bUnit tests for 4 bulk operations and issues UI components.

Components to test

• AttachmentCard.razor — renders attachment details, delete callback
• BulkConfirmationModal.razor — confirm/cancel, shows affected issue count
• BulkProgressIndicator.razor — renders progress bar with correct percentage
• UndoToast.razor — renders undo button, triggers undo callback on click

Context

These components are used in the bulk operations workflow (src/Web/Components/Issues/). No bUnit tests exist for any of them.

Sprint 3 — Bulk UI Components
Part of milestone: Code Coverage Improvement

[github-actions]

📋 Assigned to Legolas (Frontend Dev)

Issue: #208 — [S3-5] Bulk/Issues UI component bUnit tests — AttachmentCard, BulkConfirmationModal + 2 more

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