- Remove unused `path` property from Conversation class and its test
- Initialize `items` and `conversations` arrays in ConversationHistoryModal
- Use `Exception.messageFrom()` for safer error serialization in StreamingMarkdownService
- Fix redundant type cast in obsidian mock's Events.on()
- Bump @anthropic-ai/sdk, @google/genai, openai, esbuild, svelte, typescript, vitest, and other minor deps