v0.9.1.1

• LLM API base URL field fix

v0.9.1 - LiteLLM, UI improvements

• Langchain replaced with LiteLLM
  • Support for reasoning models streaming
  • Support for more providers
  • Openrouter set as default instead of OpenAI
• UI improvements
  • New message grouping system
  • Communication smoother and more efficient
  • Collapsible messages by type
  • Code execution tool output improved
  • Tables and code blocks scrollable
  • More space efficient on mobile
• Streamable HTTP MCP servers support
• LLM API URL added to models config for Azure, local and custom providers