One observation about the compiled graph, surfaced through
compile_dry_run for operator visibility. Currently used by the
ACME inject pass to mark synthesised :80 challenge routes and
any operator-defined rule whose path overlaps the injected one.
Per-listener dispatch posture. Derived by the lower pass from
the listener’s entry subgraph — not user-configured. See
spec/crates/core.md § Listener kind derivation for the
derivation rule and spec/crates/engine.md § Dispatch table for the runtime
behavior the listener picks based on this value.