RogueGrid Backend Sandbox Hardening

Backend Sandbox Route Contract Hardening V1

Hardens the running dry-run/mock-only sandbox API with central route contracts, blocked capability constants, allowed action families, response assertions, unsupported action rejection, and service smoke verification.

StatusContract Hardened

Backend route contract added.

ModeMock Only

Only blocked dry-run output.

ProductionBlocked

No production action can execute.

Next LayerTyped Packet IDs

Dry-run packet identity and trace contract can come next.