MooVocab AI

Fix bugs: Optimize the word detail page

**Key Features** Smart Learning System - **Flashcard Review**: Flip-card style learning—word on the front, definition, part of speech, pronunciation, and example sentence on the back. - **Ebbinghaus Forgetting Curve**: Intelligent review scheduling based on scientific memory principles, prompting you to review at the optimal time. - **Multiple Review Modes**: Supports three modes—"Recommended Review," "Review All," and "Resume Where You Left Off." AI‑Powered Assistance - **AI Auto‑Fill**: Automatically generates definitions, parts of speech, pronunciation, and example sentences when you enter a word. - **AI‑Generated Examples**: Generate fresh example sentences with one tap during review to deepen understanding. - **Daily Motivation**: AI‑generated daily encouragement to keep you motivated. Easy Word Entry - **Camera Recognition**: Snap a photo to recognize words, with area cropping and batch adding support. - **Wordbook Management**: Automatically grouped by date; also supports custom wordbooks. Pronunciation Support - Built‑in TTS voice朗读 to help you master correct pronunciation. Data Sync - iCloud sync support for seamless data across multiple devices. Multilingual Interface - Supports both English, Spanish, French, Japanese, Korean & Chinese UI.

### 主要新增与优化 - **AI 调用次数体系** - 新装或升级用户可获得 **20 次** 免费 AI 调用额度 - 首次启动时展示「免费额度欢迎页」，引导用户了解额度用途 - 支持按次购买 AI 调用（每次购买 100 次，永久有效） - 设置中展示「已使用 / 剩余次数」，用量透明 - **更新词库（词库补充）** - 在「设置 → 数据」中新增 **更新词库** 功能 - 一键为单词补充或更新：词根、近义词、反义词、例句 - 仅更新「缺少内容」或「内容与当前学习语言不一致」的单词，节省 API 调用 - 支持进度显示与取消，完成后可继续学习 - **付费与 Pro 体验优化** - 付费墙聚焦「AI 调用次数」购买与说明 - 明确展示哪些操作会消耗调用次数（如 AI 补充单词、AI 更新例句） - 支持恢复购买、当前订阅状态与到期时间展示 - **数据与导出** - 导出 CSV 时支持 **选择要导出的单词本**，不再仅能导出全部 - 通过「选择单词本」界面勾选需要导出的词库 - **多语言学习扩展** - 应用界面新增：**西班牙语、法语、日语、韩语、繁体中文** - 与现有简体中文、英语一起，共 7 种界面语言可选 - **激励动画** - 在学习与复习场景中新增激励动画，完成目标或取得进展时给予视觉反馈，提升学习动力与成就感

修复数据导入问题

修复AI调用问题，添加了AI计数、计费功能