from pydantic import BaseModel from typing import Optional class AppSettings(BaseModel): default_system_prompt: Optional[str] = None default_folder: Optional[str] = None default_model: str = "sonnet" default_mode: str = "agent" default_max_turns: Optional[int] = None zoom_sensitivity: float = 50.0 theme: str = "dark" new_agent_shortcut: str = "Meta+l" anthropic_api_key: Optional[str] = None browser_homepage: str = "https://www.google.com"