Return whether auto-update is enabled.
Opt-out via DEEPAGENTS_CODE_AUTO_UPDATE=0 env var or
[update].auto_update = false in config.toml.
Defaults to True.
Unrecognized env values (neither truthy nor falsy) are ignored with a warning and fall through to the config read below.
If config.toml exists but cannot be parsed, returns False (fail-closed):
a corrupt file may hold an explicit opt-out, so it is not treated as the
permissive default. A genuinely absent config falls through to True.
Always disabled for editable installs.
