* fix(config): forward Google OAuth env vars into Docker container and document setup
GOOGLE_OAUTH_CLIENT_ID, GOOGLE_OAUTH_CLIENT_SECRET, and GOOGLE_OAUTH_REDIRECT_URI
were read by the app but never forwarded through docker-compose.yml's explicit
environment allowlist, causing the "not set" error even when the vars existed in .env.
Also adds a documented section to .env.example with step-by-step GCP setup instructions
so users know where to get the credentials.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix(config): cover OAuth in standalone compose files
* test(config): parse OAuth compose service env
* test(config): keep checkout skip wording neutral
---------
Co-authored-by: TNTBA <trynottobreakanything@gmail.com>
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
