Update all docs to reflect watchdog restructure

README-Watchdogs.md: new tier diagram, updated script table, execution flow,
  state file table, and folder relationship diagram
Manual-Watchdogs.md: added system_watchdog (thin), System/storage_watchdog,
  System/webgui_watchdog, and stability_watchdog sections; updated TOC and troubleshooting
README.md: updated schedule listing, folder description, daily cycle examples
README-User_Script_Plug-in.md: stability_watchdog references throughout
unRAID_Essentials/README + Manual: stability_watchdog, updated storage path
Monitors/README, Rsync/Manual, Tools/Manual: lock name list updates

README-User_Script_Plug-in.md

@@ -111,14 +111,14 @@ docker_syslog_filter.sh  — suppresses Docker veth noise before containers crea
 php_fpm_max_children.sh  — sets PHP-FPM workers to 250 before WebGUI serves requests
 ramdisk_setup.sh         — creates /mnt/ramdisk_transcodes and symlink before Emby starts
 docker_network_connect.sh— ensures custom networks exist + containers connected
-system_watchdog.sh       ← continuous — three-tier server stability watchdog
+stability_watchdog.sh   ← last-resort — three-tier server stability watchdog
 docker_watchdog.sh       ← continuous — two-tier container healing watchdog
 failover.sh              ← continuous — mutual failover state machine
 ```
 
 **After running:**
 One-shot scripts exit cleanly. Three continuous processes run in the background until
-the array stops. Check with: `pgrep -f "system_watchdog\|docker_watchdog\|failover"`
+the array stops. Check with: `pgrep -f "stability_watchdog\|docker_watchdog\|failover"`
 
 ---
 
@@ -899,7 +899,7 @@ Background: NO
 **What it shows:**
 Strike counts for all monitored containers. Current skip list with running/stopped state.
 Whether startup grace period is active and how long remains. Whether RAM emergency
-deferral is active (mem_shutdown_active from system_watchdog). Last cycle timing.
+deferral is active (mem_shutdown_active from stability_watchdog). Last cycle timing.
 
 ---
 
@@ -1200,7 +1200,7 @@ flip count, session split ramdisk vs SSD).
 ## 🖥️  UNRAID_ESSENTIALS
 ## ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
-> **system_watchdog.sh is started by array_start.sh — not scheduled separately.**
+> **stability_watchdog.sh is called by watchdog_orchestrator.sh — not scheduled separately.**
 > **webgui_watchdog.sh, system_tuning_monitor.sh, clear_logs.sh are scheduled below.**
 > **inotify_tuning.sh, php_fpm_max_children.sh, docker_syslog_filter.sh run via array_start.sh.**
 
@@ -1264,11 +1264,11 @@ Active containers like Emby and SABnzbd grow fastest. Truncation not rotation
 
 ---
 
-### ── system_watchdog_status ──────────────────────────────────────────────────
+### ── stability_watchdog_status ──────────────────────────────────────────────────
 
 ```
 Category:   unRAID_Essentials
-Name:       system_watchdog_status
+Name:       stability_watchdog_status
 Schedule:   None — run manually
 Background: NO
 ```
@@ -1632,7 +1632,7 @@ Correct startup setup:
 Wrong startup setup (old approach):
   ramdisk_setup        — At Startup of Array
   docker_syslog_filter — At Startup of Array
-  system_watchdog      — At Startup of Array
+  stability_watchdog     — Every Minute via watchdog_orchestrator
   docker_watchdog      — At Startup of Array
   failover             — At Startup of Array
   (unpredictable order, no coordination)
@@ -1707,5 +1707,5 @@ critical_sync_maintenance      verify Critical-Data sync completes to HOST2
 daily_sync_maintenance --dry-run  verify remote connectivity and share list
 failover_status                confirm NORMAL state on both servers
 docker_watchdog_status         confirm required containers all running
-system_watchdog_status         confirm no threshold alerts on first check
+stability_watchdog_status         confirm no threshold alerts on first check
 ```