Defense-in-depth: cap readline() so a malformed or maliciously-large single-line file cannot blow up memory before the value is sanitized.
Adds tests-unit/deploy_environment_test.py covering: missing file fallback, basic read, whitespace strip, multi-line (only first line used), empty + whitespace-only files, control-char stripping (header-injection protection), non-ASCII stripping, 128-byte read cap, cache stickiness, and OSError fallback.
Amp-Thread-ID: https://ampcode.com/threads/T-019df26e-96f4-7518-94da-0e4263680e3c
Co-authored-by: Amp <amp@ampcode.com>
Read a .comfy_environment file from the ComfyUI base directory to
determine the deployment environment (e.g. standalone, portable, desktop).
Defaults to 'local_git' when the file is absent.
The value is sent as an X-Comfy-Deploy-Env header on all requests to
api.comfy.org, allowing the API to differentiate between environment types.
The .comfy_environment file is gitignored so launchers/installers can
write it without affecting the repository.
Co-authored-by: Amp <amp@ampcode.com>
Amp-Thread-ID: https://ampcode.com/threads/T-019d939e-6b4d-738b-8d1a-ac7cbf6736a4
