Duplicate Code: Identical EmptyCard and InitialCard Widgets

*Analysis of commit eaf30eabe62f9b178466629c6d3a4c4390e17311*

## Summary

Two widget classes (`EmptyCard` and `InitialCard`) have identical implementations with only different class names. Both render empty centered columns with no content, representing code duplication that reduces maintainability.

## Duplication Details

### Pattern: Identical Widget Structure
- **Severity**: High
- **Occurrences**: 2 instances
- **Locations**:
- `lib/ui/widgets/empty_card.dart` (lines 1-17)
- `lib/ui/widgets/initial_card.dart` (lines 1-17)
- **Code Sample**:
``````dart
class EmptyCard extends StatelessWidget {
const EmptyCard({
Key? key,
}) : super(key: key);

`@override`
Widget build(BuildContext context) {
return Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: const [],
),
);
}
}
``````

## Impact Analysis

- **Maintainability**: Any changes to the widget structure must be duplicated across both files, increasing the risk of inconsistent behavior
- **Bug Risk**: If one widget is updated but the other isn't, it creates inconsistent UI states that could confuse users
- **Code Bloat**: Unnecessary duplication adds to codebase size and complexity

## Refactoring Recommendations

1. **Consolidate into Single Widget**
- Create a single `EmptyStateCard` widget that replaces both
- Update all references in `lib/ui/pages/home.dart` to use the consolidated widget
- Estimated effort: 1-2 hours
- Benefits: Single source of truth, easier to extend with custom messages or icons in the future

2. **Alternative: Add Distinguishing Content**
- If these widgets are meant to represent different states (empty results vs initial loading), add distinctive content (icons, messages) to justify their separation
- Benefits: Makes the UI more informative to users

## Implementation Checklist

- [ ] Review duplication findings
- [ ] Prioritize refactoring tasks
- [ ] Create refactoring plan
- [ ] Implement changes
- [ ] Update tests
- [ ] Verify no functionality broken

## Analysis Metadata

- **Analyzed Files**: 27
- **Detection Method**: Semantic code analysis (manual review)
- **Commit**: eaf30eabe62f9b178466629c6d3a4c4390e17311
- **Analysis Date**: 2026-02-16

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