feat(identity-wallet): add RecoveryOverrideScreen component
Create the recovery override screen following patterns from ReviewOperationScreen
and AlertDetailScreen. The screen displays:
- The counter-operation diff (keys being restored, services being restored)
- Recovery deadline countdown with urgency coloring
- Confirm and Cancel buttons
- Loading state during operation building
- Error display on failure
The component calls buildRecoveryOverride on mount to fetch and display the
pending recovery operation, then submitRecoveryOverride on confirmation to
submit it to plc.directory.
Fixes: plc-key-management.AC7.6