fix: add profile flags to all docker compose commands and complete env vars

All services in docker-compose.yml are behind profiles (dev/ops), but the
maintenance scripts called docker compose without --profile, so no services
were detected or built. Added --profile dev --profile ops to BuildAll.sh,
StatusCheck.sh, and all relevant maintenance.sh commands.

Also:
- Added missing env vars for 8 newer servers to .env.example (beszel, gitea,
  grafana, ha, limesurvey, linkwarden, superset)
- Fixed maintenance.sh validate to use validate-all.sh instead of nonexistent
  validate-mcp.sh

scripts/StatusCheck.sh

@@ -18,8 +18,8 @@ echo ""
 # Change to project root (parent of scripts/)
 cd "$(dirname "${BASH_SOURCE[0]}")/.."
 
-# Get list of all services from docker-compose.yml
-SERVICES=$(docker compose config --services | sort)
+# Get list of all services from docker-compose.yml (include all profiles)
+SERVICES=$(docker compose --profile dev --profile ops config --services | sort)
 
 # Counters
 TOTAL=0