[Codename-11]

Summary

• atomically normalize all historical AgentConnection ac_* ids to CUID-shaped primary keys while cascading relational references
• preserve immutable legacyId aliases and rewrite typed conflict payloads plus dedupe keys
• accept connection ids as opaque bounded identifiers during rolling deployment
• keep delivery ownership fail-closed and isolate decision-materialization failures to one candidate run

Root cause

AXI-129's Victor mention runs reached the managed-runtime ownership gate, but the runtime connection still used its historical ac_* key. The typed DELIVERY_CONNECTION_CONFLICT payload required a Prisma CUID, so validation rolled back parking and failed the recurring dispatch sweep until the watchdog stalled the run.

Validation

• rollbacked local SQL migration fixture across connection aliases, runs, run events, Delivery sessions, participants, action payloads, and dedupe keys
• pnpm prisma validate
• pnpm lint (pre-existing warnings only)
• pnpm typecheck
• focused Vitest: 34/34
• full serial Vitest: 1,480 passed, 12 skipped

Forge issue: AXI-134