Build 59

• Improved: Added support for a new title generation mode "prompt": automatically generate a title using user prompt - no LLM involved.

• Fixed: Improved reliability for Claude and Anthropic chats that use Search, so older conversations are less likely to fail when you continue the thread later.

• Fixed: Resolved an issue where some Claude and Anthropic chats with tool use could get stuck with tool-history errors instead of continuing normally.

• Improved: Better Cloud Sync reliability for attachments in some edge cases.