feat(dist): Phase B production-readiness — SWIM indirect probes, hint-queue retry, wire compression, and queueHint race fix #1

	---
	name: cluster

	# Cross-process cluster smoke. Boots the 5-node docker-compose
	# stack defined at docker-compose.cluster.yml, waits for every
	# node's /healthz to flip to 200, then runs the assertion script
	# under scripts/tests/. Catches the class of bugs that unit
	# tests miss because they only exercise in-process behavior:
	# * config not flowing from HyperCache wrapper to DistMemory
	# * seed lists with empty node IDs producing broken rings
	# * wire-encoding asymmetries between writer and replica
	#
	# Container logs are dumped on failure so a CI failure is
	# debuggable without re-running locally.

	on:
	pull_request:
	push:
	branches: [main]

	permissions:
	contents: read

	jobs:
	smoke:
	name: 5-node smoke
	runs-on: ubuntu-latest
	timeout-minutes: 10

	steps:
	- uses: actions/checkout@v6

	- name: Build cluster image
	run: \|
	docker compose -f docker-compose.cluster.yml build

	- name: Bring cluster up
	run: \|
	docker compose -f docker-compose.cluster.yml up -d

	- name: Wait for cluster /healthz
	run: bash scripts/tests/wait-for-cluster.sh

	- name: Run cross-node smoke
	run: bash scripts/tests/10-test-cluster-api.sh

	- name: Dump container logs (on failure)
	if: failure()
	run: \|
	for c in hypercache-1 hypercache-2 hypercache-3 hypercache-4 hypercache-5; do
	echo "::group::$c"
	docker logs --tail 200 "$c" \|\| true
	echo "::endgroup::"
	done

	- name: Tear down
	if: always()
	run: \|
	docker compose -f docker-compose.cluster.yml down -v --remove-orphans

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