refactor(core): migrate to Bun and converge acquisition policies and Agent boundaries

packages/contracts/src/events.ts

@@ -184,6 +184,7 @@ export const ReleaseResolvedPayload = z.object({
 });
 
 export const DecisionCreatedPayload = z.object({
+  dedupeKey: z.string().optional(),
   decisionId: Id,
   kind: DecisionKind,
   severity: Severity,