バグ修正とパフォーマンスの向上

This update includes bug fixes and performance improvements.

This update brings a major expansion of Inventarium’s features, making inventory tracking more powerful while staying simple and fully offline.

- Item photos (up to 10 per item)
- Purchase information (date, price, store, warranty)
- Serial and model numbers
- Manufacturer details
- Item location tracking
- Condition assessment
- Current value tracking with purchase price comparison
- Enhanced statistics across all these dimensions
- Quick increase/decrease buttons directly in the item list
- Person tracking for each transaction (to whom items are given or from whom received)
- Transaction types (received, given, adjustment)
- Person filter in the movement tab to search all transactions by name
- Enhanced movement display with visual indicators

Thanks for helping make Inventarium better with your feedback!