llm-anthropic 0.26

The llm-anthropic version 0.26 update adds three new Claude AI models (Fable 5, Sonnet 5, and Opus 5) and introduces server-side tools for web search, web fetching, and code execution through a command-line interface (-T). The update also changes how the AI's internal reasoning process works, now displaying it as typed events (individual data chunks sent one at a time) and simplifying reasoning controls with a new thinking_effort parameter.