Captures the deploy hazard found during #27 rollout (cfaun): the
nsecbunkerd<->LNbits pairing is split across both systems, so a full
nsecbunker.db wipe orphans LNbits's signer_config and forces an
identity-changing re-provision. Documents the targeted
'DELETE FROM SigningCondition' procedure, the keys-live-in-json fact,
and the migrate-on-boot no-op (#31).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>