feat: community workshop for custom widgets and CSS (#5984)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>

apps/workshop/scripts/smoke-test.sh

@@ -0,0 +1,30 @@
+#!/bin/sh
+set -eu
+
+image="${1:-homarr/workshop:ci}"
+container="homarr-workshop-smoke-${$}"
+port="${WORKSHOP_SMOKE_PORT:-18090}"
+
+cleanup() {
+  docker rm --force "$container" >/dev/null 2>&1 || true
+}
+trap cleanup EXIT INT TERM
+
+docker run --detach --name "$container" --publish "127.0.0.1:${port}:8090" "$image" >/dev/null
+
+attempt=0
+until curl --fail --silent "http://127.0.0.1:${port}/api/health" >/dev/null; do
+  attempt=$((attempt + 1))
+  if [ "$attempt" -ge 30 ]; then
+    docker logs "$container"
+    exit 1
+  fi
+  sleep 1
+done
+
+curl --fail --silent "http://127.0.0.1:${port}/" | grep --quiet "Homarr"
+curl --fail --silent "http://127.0.0.1:${port}/workshop/" | grep --quiet "Workshop"
+curl --fail --silent "http://127.0.0.1:${port}/api/collections/marketplace/records?page=1&perPage=1" >/dev/null
+curl --fail --silent "http://127.0.0.1:${port}/api/health" | grep --quiet '"code":200'
+
+echo "Workshop image serves Docusaurus and PocketBase successfully"