更新内容:

• 新增 RikkaHub 免费 AI 和搜索服务
• 新增工具调用审批功能（人在回路），MCP 工具支持设置"需要审批"
• 新增 MCP 连接自动重连机制，增加请求超时时间，提升稳定性
• 新增 Groq TTS 语音合成支持
• 新增助手预填充功能
• 修复对话过大导致应用崩溃的问题
• 修复滑动删除对话后撤销无法恢复聊天记录的问题
• 修复导出图片对 Mermaid 图表的支持
• 修复占位符在世界书和提示注入中不生效的问题

Updates:

• Added RikkaHub free AI and search services
• Added tool call approval feature (human-in-the-loop), MCP tools can now be set to "require approval"
• Added MCP connection auto-reconnect mechanism with increased request timeout for better stability
• Added Groq TTS voice synthesis support
• Added assistant prefill feature
• Fixed app crash caused by oversized conversations
• Fixed issue where undo after swipe-to-delete couldn't restore chat history
• Fixed Mermaid diagram support when exporting images
• Fixed placeholders not working in World Book and prompt injection