Description:
Allow signed-in users to securely sign out from the header.
Acceptance Criteria:
- Sign Out option available in user menu
- Styled as a destructive action (red)
- Confirmation dialog before sign out
- Clears authentication state
- Stops active radio playback
- Returns user to guest mode
- Success toast notification shown
Description:
Allow signed-in users to securely sign out from the header.
Acceptance Criteria: