Structural reorganization: watchdog taxonomy + server_reboot integration

Watchdog renames and moves:
  system_watchdog.sh → stability_watchdog.sh (last line of defense — reboots)
  storage_watchdog.sh → Watchdogs/System/storage_watchdog.sh
  webgui_restart.sh → Watchdogs/System/webgui_watchdog.sh (renamed to match folder convention)

New thin orchestrator:
  Watchdogs/system_watchdog.sh — runs SYSTEM_WATCHDOG_SCRIPTS from master.conf
  Sits between docker_watchdog and stability_watchdog in the orchestrator tier chain
  System/ subfolder is the growth seam for future system component watchdogs

master.conf:
  WATCHDOG_ORCHESTRATOR_SCRIPTS updated — storage removed, system_watchdog added as tier
  SYSTEM_WATCHDOG_SCRIPTS array added — storage + webgui

server_reboot.sh:
  Calls array_stopping.sh before VM shutdown for guaranteed safe array stop
  Removed raw rc.docker stop and exit trap — orchestrator owns container shutdown

unRAID_Essentials/server_reboot.sh

@@ -19,9 +19,9 @@
 #   2. Wall message to all logged-in terminal users
 #   3. unRAID dashboard notification
 #   4. Wait REBOOT_SLEEP seconds — users time to save work
-#   5. Graceful VM shutdown via virsh — ACPI signal, then wait REBOOT_VM_WAIT
-#   6. Stop libvirt (VM Manager)
-#   7. Stop Docker service
+#   5. array_stopping.sh — user scripts, rsync, mover, containers (verified stop)
+#   6. Graceful VM shutdown via virsh — ACPI signal, then wait REBOOT_VM_WAIT
+#   7. Stop libvirt (VM Manager)
 #   8. sync — filesystem buffers flushed to disk
 #   9. /sbin/reboot
 #
@@ -121,15 +121,6 @@ acquire_lock
 
 detect_hosts
 
-# ── Exit Trap — restart Docker service if reboot sequence aborts after stopping it ────────────
-_REBOOT_DOCKER_STOPPED=false
-_trap_restart_docker_service() {
-    [[ "$_REBOOT_DOCKER_STOPPED" == true ]] || return
-    warn "Exit trap: restarting Docker service after aborted reboot sequence"
-    /etc/rc.d/rc.docker start >/dev/null 2>&1 || true
-}
-trap _trap_restart_docker_service EXIT
-
 [[ "$DRY_RUN" == true ]] && warn "DRY RUN — no changes will be made, no reboot will occur"
 
 # ==============================================================================================
@@ -239,6 +230,25 @@ if [[ "$REBOOT_SLEEP" -gt 0 ]]; then
     fi
 fi
 
+# ==============================================================================================
+# ━━━ Array Stop Orchestrator ━━━
+# ==============================================================================================
+echo ""
+echo "━━━ $ICON_STOP Array Stop Orchestrator ━━━"
+ARRAY_STOP_SCRIPT="$SCRIPT_DIR/../Orchestrators/array_stopping.sh"
+
+if [[ ! -f "$ARRAY_STOP_SCRIPT" ]]; then
+    warn "array_stopping.sh not found — skipping orchestrated stop"
+elif [[ "$DRY_RUN" == true ]]; then
+    bash "$ARRAY_STOP_SCRIPT" --dry-run
+else
+    if bash "$ARRAY_STOP_SCRIPT"; then
+        log "Array stop complete ✅"
+    else
+        warn "array_stopping.sh reported failures — proceeding with reboot"
+    fi
+fi
+
 # ==============================================================================================
 # ━━━ Graceful VM Shutdown ━━━
 # ==============================================================================================
@@ -280,22 +290,6 @@ else
     fi
 fi
 
-# ==============================================================================================
-# ━━━ Stop Docker ━━━
-# ==============================================================================================
-echo ""
-echo "━━━ $ICON_CONTAINERS Stop Docker ━━━"
-if [[ "$DRY_RUN" == true ]]; then
-    warn "DRY RUN — would stop Docker service"
-else
-    if /etc/rc.d/rc.docker stop >/dev/null 2>&1; then
-        _REBOOT_DOCKER_STOPPED=true
-        warn "Docker stopped ✅"
-    else
-        warn "Docker stop returned non-zero — may already be stopped"
-    fi
-fi
-
 # ==============================================================================================
 # ━━━ Sync Disks ━━━
 # ==============================================================================================
@@ -327,6 +321,5 @@ if [[ "$DRY_RUN" == true ]]; then
 else
     warn "$ICON_REBOOT Rebooting $MY_ID now..."
     echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
-    trap - EXIT  # committed to reboot — Docker should stay down
     /sbin/reboot
 fi