Añade Execution, Assertion, AssertionResult al paquete fn_operations.
Motor de evaluación de assertions con reescritura SQL automática.
Bucle reactivo: ExecuteAndReact evalúa assertions y cambia status de
entities (corrupted/stale) + auto-crea proposals en registry.
CLI fn ops: assertion (add/list/show/delete/eval) y execution (add/list/show).
Migración 002_executions_assertions.sql con FTS para assertions.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
