unRAID_Essentials echo/log audit pass + exit traps

Exit traps: resource_watchdog registers/clears trap for stopped containers;
server_reboot registers trap to restart Docker service on abort; system_watchdog
records containers before bulk stop and registers trap to restart if reboot aborts.

echo/log audit: status conclusions, nothing-to-do, and clean-cycle confirmations
→ echo across clear_logs, docker_syslog_filter, mover_stop, php_fpm_max_children,
rsync_stop, user_scripts_stop. resource_watchdog: disabled flag, restore-level
messages, pressure status → echo. system_watchdog: clean-cycle summary → echo.
Manual-Unraid_Essentials.md: added Output Tiers section.

unRAID_Essentials/mover_stop.sh

@@ -127,7 +127,7 @@ fi
 START=$(date +%s)
 
 if ! pgrep -f "emhttp.*Mover" >/dev/null 2>&1; then
-    log "Mover is not running — nothing to do"
+    echo "Mover is not running — nothing to do"
     exit 0
 fi
 
@@ -137,7 +137,7 @@ warn "Mover is running (PID $MOVER_PID) — stopping in ${MOVER_STOP_TIMEOUT}s"
 # ── Warn users via wall ───────────────────────────────────────────────────────────────────────
 if [[ "$DRY_RUN" == false ]]; then
     wall "$ICON_WARN $MY_ID ($LOCAL_SERVER_NAME) — unRAID Mover stopping in ${MOVER_STOP_TIMEOUT}s"
-    log "Wall message sent — waiting ${MOVER_STOP_TIMEOUT}s..."
+    echo "Wall message sent — waiting ${MOVER_STOP_TIMEOUT}s..."
     sleep "$MOVER_STOP_TIMEOUT"
 else
     warn "DRY RUN — would send wall warning and wait ${MOVER_STOP_TIMEOUT}s"
@@ -187,6 +187,6 @@ echo ""
 if [[ "$DRY_RUN" == true ]]; then
     warn "DRY RUN — no changes made"
 else
-    log "$ICON_DONE Status: done — mover stopped ✅"
+    echo "$ICON_DONE Status: done — mover stopped ✅"
 fi
 echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"