chore(release): v0.2.1

Bump package + Helm chart to 0.2.1.

Fixes since v0.2.0:
- Redirects (setup/login) now resolve from LAUNCHPAD_BASE_URL, and HSTS is only
  sent on HTTPS deployments — fixes the "redirected to https://localhost/setup"
  trap on plain-HTTP localhost deploys.
- Retention policy dialog lists the actual measurement names (was showing the
  database name for every option).
- MQTT subscription live stats (messages/bytes) now refresh every second.
- Add deploy-with-arc/docker-compose.yml (Arc + Launchpad in one stack).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: Ignacio Van Droogenbroeck

helm/launchpad/Chart.yaml

@@ -3,8 +3,8 @@ name: launchpad
 description: Self-hosted web UI for Arc, the high-performance columnar analytical database.
 type: application
 # version (chart) and appVersion are overridden at release time by the workflow.
-version: 0.2.0
-appVersion: "0.2.0"
+version: 0.2.1
+appVersion: "0.2.1"
 keywords:
   - arc
   - analytics

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "arc-launchpad",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "description": "Self-hosted web UI for Arc, the high-performance columnar analytical database.",
   "license": "Apache-2.0",
   "type": "module",