Improved Favors Ledger: decoupled from bill ledgers; manage multiple ledgers independently

- Added Favors Ledger module with contact and record management - Added contact list with alphabetical sections and quick index - Added automatic summary for balanced/unbalanced exchange amounts - Added detailed record view with add/edit/delete support - Improved iPad interactions and overall usability consistency

- Improved overall performance and user experience

- Added the ability to select specific accounts when importing or exporting - Improved overall performance and user experience

What’s New - Ledgers can now be renamed for easier management - Statistics now supports merged ledgers with drill‑down details - Bug fixes and stability improvements

What’s New - Ledgers can now be renamed for easier management - Statistics now supports merged ledgers with drill‑down details - Bug fixes and stability improvements

This is a simple yet practical expense tracker designed to remove unnecessary complexity and focus on the essentials: recording and understanding your daily cash flow. In this release, we’ve added several key improvements: • Easier interface experience A refreshed layout that makes navigation and interaction more intuitive and smooth. • Import/Export Ledgers Easily export your ledger data for backup, or import existing data from elsewhere — perfect for data migration and backup. • Merge Ledgers Combine multiple ledgers into one, giving you a unified view of all your records. • Enhanced Statistics Improved statistics tools provide clearer breakdowns and trend displays, making your financial overview easier to understand. This update makes it even simpler to track and analyze expenses — all in a straightforward, efficient tool.

一些样式更改和bug修复

修复账单条目过多而无法显示的bug

新增多账本功能，现在开始可以同时管理多个账本了