Function create_tools_from_config 

pub fn create_tools_from_config(
    config: &RobitConfig,
    skill_registry: Arc<SkillRegistry>,
) -> ToolRegistry

Create a ToolRegistry with tools filtered by config.enabled_tools.

• If enabled_tools is not specified: all tools are registered
• If enabled_tools is specified: only register tools in the list
• read, load_skill, and memory tools are always registered (required for basic functionality)