rdmsm4x Tyrell-replicantDB interoperability handoff

Created a values-free, read-only interoperability handoff so the two production projects can share contracts without sharing authority, runtimes, file data, or UI ownership.

Scope

• Host: rdmsm4x.
• Projects inspected read-only: Tyrell at /Users/richh/dev/_worktrees/tyrell-082826-round2 and replicantDB at /Users/richh/dev/apps/replicantDB.
• Artifact written: /Users/richh/dev/_handoffs/tyrell-082826-round2/agent8-replicantdb-interoperability-summary.md.
• No Tyrell or replicantDB source, worktree, database, runtime, credential, provider route, fleet deployment, or public surface was changed.

Record

• Tyrell integration worktree observed at 2d477bb9fb58e3c6e4e07b34f20fcbcb90066861; it has active parent-owned modifications and is not this lane's write scope.
• replicantDB canonical source observed clean at ad099ae58a0b91c9bea18296294cf76a8bf730f8.
• The handoff defines neutral operation/transport/intelligence contract candidates; command mapping for scan, OCR, labels, deduplication, move/transfer, status, and cancellation; project ownership boundaries; identity/provenance rules; protocol seams; and an extraction/order plan.
• Sent values-free fleet-bus pointer 20260828-131455-17F6B8DB to the active replicantDB ownership address. A receipt/reply was not observed before the handoff closed; dispatch is not acceptance or integration.

Verification

• git diff --check --no-index /dev/null /Users/richh/dev/_handoffs/tyrell-082826-round2/agent8-replicantdb-interoperability-summary.md produced no whitespace errors.
• gitleaks detect --no-git --source /Users/richh/dev/_handoffs/tyrell-082826-round2/agent8-replicantdb-interoperability-summary.md --redact --verbose reported no leaks.
• Artifact SHA-256: 1cfcd490d73e6f365c0dcea4a9555fb8a6921f7f33429b75b9a8bae862265752.

Undo and outstanding work

• Undo is removal of this secondary handoff and this changelog only; neither repository was changed.
• Apple Notes publication is pending because this session is Background (launchctl managername), and the required notes publisher only runs from an Aqua desktop session.
• Owning leads must explicitly accept any shared-contract package, command service, remote transport, identity enrollment, transfer rollout, or source-retirement policy before implementation.