chore: upgrade to ghcr.io/plausible/community-edition:v3.2.1

- Switch app image from plausible/analytics:v2.0.0 to
  ghcr.io/plausible/community-edition:v3.2.1 (image registry changed at v3.x)
- Bump ClickHouse from 23.4.2.11-alpine to 24.12-alpine (required for CE v3.x)
- Add CLICKHOUSE_SKIP_USER_SETUP=1 env var to ClickHouse service (required for v3.0.0+)
- Add ClickHouse healthcheck
- Update clickhouse-user-config.xml: replace deprecated <yandex> root with
  <clickhouse> root; adopt CE low-resource profile settings for < 16 GB RAM hosts

compose.yml

@@ -3,7 +3,7 @@ version: "3.8"
 
 services:
   app:
-    image: plausible/analytics:v2.0.0
+    image: ghcr.io/plausible/community-edition:v3.2.1
     command: sh -c "sleep 10 && /entrypoint.sh db createdb && /entrypoint.sh db migrate && /entrypoint.sh run"
     depends_on:
       - db
@@ -67,10 +67,17 @@ services:
         backupbot.restore.post-hook: "/pg_backup.sh restore"
 
   plausible_events_db:
-    image: clickhouse/clickhouse-server:23.4.2.11-alpine
+    image: clickhouse/clickhouse-server:24.12-alpine
     volumes:
       - event-data:/var/lib/clickhouse
     entrypoint: /custom-entrypoint.sh
+    environment:
+      - CLICKHOUSE_SKIP_USER_SETUP=1
+    healthcheck:
+      test: ["CMD-SHELL", "clickhouse-client --query='SELECT 1'"]
+      interval: 5s
+      timeout: 5s
+      retries: 60
     configs:
       - source: clickhouse-config
         target: /etc/clickhouse-server/config.d/logging.xml