User Story 3 (Audio) - Issue 4

[dkhalifa25]

Issue 4: Add “Attach Audio” Button in Composer (Professor UI)

Effort: 2–3h
Dependencies: Issue 2 (upload API)
Milestone: Sprint 1
Assignee: to be decided
Description:

• Add “Attach Audio” button in announcement composer.
• Provide file picker for upload.
• Show upload progress indicator.

Acceptance Criteria:

• Button visible only for professor/admin roles.
• Audio upload integrates with API.
• Progress bar or status message shown during upload.