feat(owner): land owner-controlled packet sharing (rescued VPS WIP) (#101)

* feat(owner): add owner-controlled packet sharing

* docs: record B3 packet-sharing handoff

* docs(api): regenerate openapi for packet-sharing routes

* test(db): extend migration registry expectation to 052-054

---------

Co-authored-by: gadgethd <111318106+gadgethd@users.noreply.github.com>

backend/src/db/dataLifecycle.ts

@@ -106,6 +106,13 @@ export const DATA_LIFECYCLE_POLICIES: readonly DataLifecyclePolicy[] = Object.fr
     kind: 'row-table',
     featureImpact: ['delivered owner-alert audit rows older than 90 days are removed'],
   },
+  {
+    table: 'owner_packet_share_deliveries',
+    timestampColumn: 'created_at',
+    retention: '30 days',
+    kind: 'row-table',
+    featureImpact: ['terminal owner packet-sharing queue and audit rows older than 30 days are removed'],
+  },
   {
     table: 'observer_registration_requests',
     timestampColumn: 'updated_at',