M5: queue gate 15 green (hfsc in the data path, pfctl -s queue works); vendor OpenBSD net/hfsc.h + net/fq_codel.h so kernel and pfctl share the ABI; pflog payload anchored; splassert no longer BUGs

docs/en/pf-guide.md

@@ -63,7 +63,7 @@ treat them as load-and-pray until the matrix moves them.
 | `nat-to`, `rdr-to`, `binat-to` | — | **Verified in the lab** (gates `05-nat`, `06-rdr`, the latter pulls 2 MB through a redirect and compares it byte for byte). `nat-to (egress)` expands the OpenBSD interface *group*; on a multi-NIC host prefer the explicit `nat-to (<iface>)` form. `binat-to` is expanded by pfctl into a `nat-to … static-port` + `rdr-to` pair (gate `07-binat`). |
 | `scrub (min-ttl, max-mss, df, random-id)`, `set reassemble` | — | **Verified in the lab** (gate `09-scrub.sh`): `min-ttl` and `max-mss` measurably rewrite transit packets. || `divert-to`, `divert` tag | — | **Verified in the lab** (gate `11-divert`): the packet is delivered to an `AF_DIVERT` socket (`PF_DIVERT=32`) served by `tools/pdivert`; with no listener it is dropped, exactly like BSD's `divs_noport`. |
 | `route-to`, `dup-to`, `reply-to` | — | **Verified in the lab** (gates `08-routeto.sh`, `13-replyto.sh`): the forced gateway is used instead of the normal egress, `dup-to` copies while keeping the flow, and `reply-to` pushes a flow's answers out through the gateway link. `fail-to` is not a keyword in OpenBSD 8.0 (removed upstream). |
-| `queue` / `queue on` / `pfctl -s queue` | M5 | Parse and load. Queuing falls back to the priq-shaped compat `ifq` layer; **no bandwidth enforcement happens until the `pfq` qdisc lands**. |
+| `queue` / `queue on` / `pfctl -s queue` | — | **Verified in the lab** (gate `15-queue.sh`): queues load, hfsc attaches, `pfctl -s queue -v` reports class statistics and a queued 2 MB flow is counted by the class. `bandwidth` is a *guarantee under contention*, not a cap - 8.0's pf.conf has no upperlimit keyword. |
 | `log`, `log all`, `block log`, `pflogd` | — | **Verified in the lab** (gate `12-pflog`): run `pflogd /tmp/x.pcap` (reads `/dev/pflog`); the file is a `DLT_PFLOG` (117) pcap readable by tcpdump/wireshark. |
 | `route-label …` | never (non-goal) | Rejected at the ioctl layer. |
 | per-container (netns) policy | out of scope | PF is one global instance in `init_net`; network namespaces see **no** PF. |