pi-routing-suite is a pi port of the dsh-routing-suite reasoning-mode router.

Upstream (MIT):
- yjh051108/dsh-routing-suite — injector × reasoning-mode routing suite
- yjh051108/dsh-router-standard — router-standard / router-spec presets,
  router-core.mjs (classifier, personas, band quantization), router-bootstrap
  (near-field guidance, dev_router_status / dev_router_mode)

Port lineage:
- cuddly-guacamole/opencode-routing-suite — opencode port (MIT); session state
  model, chat detection, circuit-breaker, and fail-open patterns were adapted
  from its plugins/routing-suite.ts

Acknowledgments (per upstream):
- xiaobright/modeltest — Project2 / V4.1b evaluation methodology
- xiaobright/dsh-anchored-standard — two-phase anchoring mechanism

The original copyright and MIT notice of the upstream projects are retained.