pub fn load_dotenv()Expand description
Load <appdata>/.env (~/.<service>/.env on bare metal, /data/.env in a
container) into the process environment if present.
Best-effort: a missing file is ignored, and existing env vars are NOT
overridden — values injected by docker-compose/systemd or the plugin hook’s
CLAUDE_PLUGIN_OPTION_* mapping still take precedence. This lets the binary
find its credentials directly from ~/.<service>/.env without relying on a
process manager to inject them. Call once at startup before Config::load.