social-federation rollout step 12.2 — inbound soak. Persistent staging
gets FEDERATION_ENABLED=true; PR previews keep the flag empty so
preview journals never emit federation traffic.
- docker-compose.staging.yml: journal accepts FEDERATION_ENABLED +
FEDERATION_KEY_ENCRYPTION_KEY (both default empty).
- cd-staging.yml: persistent staging env sets FEDERATION_ENABLED=true;
the encryption key arrives via the existing SOPS decryption.
- secrets.app.env: new FEDERATION_KEY_ENCRYPTION_KEY (SOPS-encrypted,
generated with openssl rand -hex 32).
Production is unaffected: the flagship compose doesn't pass these vars
and the flag defaults off in code.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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