from __future__ import annotations
from pathlib import Path
from pydantic import Field
from pydantic_settings import BaseSettings, SettingsConfigDict
class Settings(BaseSettings):
"""Application settings validated via pydantic."""
environment: str = Field(..., description="Runtime environment, e.g. dev/test/prod")
data_dir: Path = Field(..., description="Base directory for local data")
default_symbol: str = Field(..., description="Default market symbol")
model_config = SettingsConfigDict(
env_prefix="TRADING_MCP_",
env_file=".env",
env_file_encoding="utf-8",
extra="ignore",
)
def load_settings(**overrides: object) -> Settings:
"""Load settings with optional overrides (env vars still apply)."""
return Settings(**overrides)
