Why: I1 WP3 - chat routing and the HITL free-text pivot now share one
router consuming the library's command list, and both intent hosts
fold compatibility-equivalent input.
Evidence: go vet clean; go test ./... 30 packages ok, including the
existing workflow-route and server e2e suites unchanged (behavior
parity) and the new route package tests.
Impact: new internal/route package (unique router with explicit
priority rules); intentgate carries Commands and folds NFKC;
server.go and runmgr.go route through it; nested pins at intent
2554b50 and squad 6b7a991. Blueprint actions resolve to a squad
decision at the router level; per-run squad entry stays a recorded
follow-up (no silent misrouting).
Refs: Documents proposal 2026-10-07-agent-stack-n1q1i1-plans.md I1 WP3/WP4
weichen