Task T3.1: ActorResolver gains findScope (no-create) + assertOwns(principal,
resourceScopeId) → ForbiddenException on mismatch (KG-02). RouteService.approve/
deny now assertOwns on the decision's binding scope before mutating; listDecisions
is scoped to the caller. Fixes the critical cross-tenant mutation (tenant A could
approve tenant B's route). Also adds IiosScope.cellId + IiosOutboundCommand.scopeId
columns (migration tenant-isolation) + cell assignment on scope create. Test:
another tenant approving → Forbidden, decision unchanged, no scope created, empty list.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
