I Dropped Multi-Agent Coordination for a 5-Layer Falsification Battery

Swarm Orchestrator temporarily drops its multi-agent swarm layer and runs a single agent instead.

Patch approval now depends on a five-layer falsification battery, led by hard differential and mutation-testing gates.

Three more checks look for shortcut behavior, verify property-based behavior, and confirm attestations.

The change is an experiment for now, with multi-agent swarming expected to return in v8.