docs: record 0.1.67 acceptance

[Minorli]

Summary

• record the 0.1.67 database-storage incident and readiness fix
• capture CI, independent review, image digests, backup evidence, and the exact production Compose diff
• record the 355-second production observation without a paid generation call

Verification

• documentation-only diff
• git diff --check
• all operational values re-read from GitHub, Docker Hub, and fnfarm after deployment