fix(validator): add structured exec results and strict patchability outcomes

Remove hardcoded fallbacks, add snapshot-driven service lifecycle

Add episode CLI, synthetic data pipeline, NPC generalization, service manifest

Implement canonical base graph and mutation policy

Tighten manifest-grounded live admission

Production all-in-one container with real service execution

Add snapshot lineage and parent-based mutation runtime (#49)

Implement all remaining features: 17 issues resolved

Add task engine, exposure policy, auth scenario, pivot mechanics, curriculum wiring

Full OpenRange implementation: environment, builder, validator, agents, tests