Update N8N_IMAGE (docker.n8n.io/n8nio/n8n) to v2.45.3

versions.env

@@ -14,7 +14,7 @@ OPENCODE_IMAGE=ghcr.io/anomalyco/opencode:1.19.4
 
 # --- oswald_runner (Flatcar) ---
 GITEA_RUNNER_IMAGE=docker.io/gitea/runner:3.5.0
-N8N_IMAGE=docker.n8n.io/n8nio/n8n:2.47.1
+N8N_IMAGE=docker.n8n.io/n8nio/n8n:2.45.3
 CISA_KEV_RSS_IMAGE=ghcr.io/xsaveopt/cisa-kev-rss:0.0.5
 DOMAIN_WATCHDOG_IMAGE=maelgangloff/domain-watchdog:v1.4.6
 # Major must match POSTGRES_VERSION in domain-watchdog's .env (used in DATABASE_URL).
@@ -25,13 +25,3 @@ DOMAIN_WATCHDOG_VALKEY_IMAGE=valkey/valkey:9.1.2
 
 # --- oswl_connector (Flatcar) ---
 TAILSCALE_IMAGE=docker.io/tailscale/tailscale:v1.104.2
-
-# --- utility (Flatcar) ---
-# cturra/ntp only publishes "latest", so it is pinned by digest (2025-11-30 build).
-NTP_IMAGE=cturra/ntp@sha256:7224d4e7c7833aabbcb7dd70c46c8a8dcccda365314c6db047b9b10403ace3bc
-APT_CACHER_NG_IMAGE=mbentley/apt-cacher-ng:trixie-20261026
-REGISTRY_CACHE_IMAGE=registry:3.1.2
-
-# --- phpipam (Flatcar) ---
-PHPIPAM_WWW_IMAGE=phpipam/phpipam-www:v1.8.3
-PHPIPAM_CRON_IMAGE=phpipam/phpipam-cron:v1.8.3