fix stale doc references across four files

README.md:
  - folder tree: conf files at root → Configurations/ subfolder
  - folder tree: Failover/ → Fallback/, wrong README name corrected
  - folder tree: add Kernel/ entry (was missing)
  - CONFIGURATION section: note Configurations/ path + sparse checkout

README-User_Script_Plug-in.md:
  - mem_shutdown_active attributed to stability_watchdog → resource_watchdog

unRAID_Essentials/README-Unraid_Essentials.md:
  - webgui_watchdog schedule: "Every 10 min via User Scripts" →
    "Every minute via watchdog_orchestrator → system_watchdog"
  - HOW THE SCRIPTS RELATE: arrow diagram corrected — system_watchdog.sh
    calls storage/webgui/network watchdogs, not the reverse; added
    network_watchdog.sh and stability_watchdog.sh to the flow

Orchestrators/README-Orchestrators.md:
  - continuous daemon example: system_watchdog.sh → fallback.sh
    (system_watchdog is now single-pass, not a daemon)
  - scripts table: add watchdog_orchestrator.sh and monthly_maintenance.sh
    (both were missing)

Orchestrators/README-Orchestrators.md

@@ -167,10 +167,12 @@ without `--log`.
 | Script | What It Orchestrates | Schedule |
 |--------|---------------------|----------|
 | `array_start.sh` | All array startup scripts in order | At Startup of Array |
+| `watchdog_orchestrator.sh` | resource → docker → system → stability watchdogs | Every minute |
 | `transcode_management.sh` | Cleanup then manager — order critical | Every 3 minutes |
 | `arrs_failed_stalled_recovery.sh` | Failed import + stalled download recovery | Every 6 hours |
 | `daily_sync_maintenance.sh` | git pull → sync → media maintenance → restarts | 1am daily |
 | `weekly_sync_maintenance.sh` | Stop → update → clean sync → start → weekly restarts | 2:30am Sunday |
+| `monthly_maintenance.sh` | Uptime-triggered heavy tasks — ZFS scrub, SMART tests | Daily check, fires when uptime ≥ 30d |
 | `media_management.sh` | Permissions → cleaners → arr cleanup | Via daily_sync (or manual) |
 
 ---
@@ -233,7 +235,7 @@ ARRAY_START_SCRIPTS=(
 # Each script is launched with `bash script.sh &` — background process.
 # After 1 second:
 #   PID still alive → continuous script (running in background)
-#                     logged as: "system_watchdog.sh — running (PID 12345)"
+#                     logged as: "fallback.sh — running (PID 12345)"
 #   PID dead + exit 0 → one-shot completed successfully
 #                        logged as: "inotify_tuning.sh — completed (one-shot)"
 #   PID dead + exit N → failure