test: add haproxy smoke test

Assisted-by: GLM 5 via Claude Code
Signed-off-by: Xe Iaso <me@xeiaso.net>

test/haproxy-simple/test.sh

@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+
+source ../lib/lib.sh
+
+export KO_DOCKER_REPO=ko.local
+
+set -euo pipefail
+
+# Step 1: Config validation
+mint_cert haproxy-simple.test
+
+# Combine cert and key for HAProxy SSL directory format
+cat pki/haproxy-simple.test/cert.pem pki/haproxy-simple.test/key.pem >pki/haproxy-simple.test/haproxy.pem
+
+docker run --rm \
+	-v $PWD/conf/haproxy:/usr/local/etc/haproxy:ro \
+	-v $PWD/pki:/etc/techaro/pki:ro \
+	haproxytech/haproxy-alpine:3.0 \
+	haproxy -c -f /usr/local/etc/haproxy/haproxy.cfg
+
+# Step 2: Runtime testing
+echo "Starting services..."
+docker compose up -d
+
+sleep 5
+
+echo "Services are healthy. Starting runtime tests..."
+export NODE_TLS_REJECT_UNAUTHORIZED=0
+node test.mjs
+
+# Cleanup happens automatically via trap in lib.sh