feat(qemu): ADR-062 QEMU swarm configurator for multi-ESP32 testing
YAML-driven orchestrator for testing multiple ESP32-S3 QEMU instances
with configurable topologies (star/mesh/line/ring), role-based nodes
(sensor/coordinator/gateway), and swarm-level health assertions.
New files:
- ADR-062: architecture decision record
- qemu_swarm.py: main orchestrator (1097 lines)
- YAML config parsing with schema validation
- 4 topology implementations with TAP/SLIRP fallback
- Per-node NVS provisioning via provision.py --dry-run
- Signal-safe cleanup, dry-run mode, JSON results output
- swarm_health.py: 9-assertion health oracle (653 lines)
- 7 preset configs: smoke (2n/15s), standard (3n/60s),
large-mesh (6n/90s), line-relay (4n/60s), ring-fault (4n/75s),
heterogeneous (5n/90s), ci-matrix (3n/30s)
- CI: swarm-test job in firmware-qemu.yml
Co-Authored-By: claude-flow <ruv@ruv.net>
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