fix widespread naming errors across all docs — array_started, fallback, FALLBACK_

array_start.sh → array_started.sh (bulk rename — actual file has always been
array_started.sh; docs consistently used the wrong name across 9 files)

failover.sh → fallback.sh (bulk rename — script is Fallback/fallback.sh;
docs used the old name throughout)

FAILOVER_HOST2_RUNS_FOR_HOST1_TIER1 → FALLBACK_HOST2_COVERS_HOST1_TIER1
(README.md — wrong variable name, actual vars use FALLBACK_ prefix and
COVERS_ not RUNS_FOR_)

docker_watchdog.sh attribution: "started by array_started.sh" → "called every
minute by watchdog_orchestrator.sh" (docker_watchdog is not in ARRAY_START_SCRIPTS)

server_reboot.sh shutdown sequence: step 7 "rc.docker stop" → calls
array_stopping.sh (user_scripts, fallback, rsync, mover, docker_container_stop)

Rsync manual ARRAY_START_SCRIPTS list: removed stability_watchdog and
docker_watchdog (now in watchdog_orchestrator); failover → fallback

Rsync/Manual-Rsync.md

@@ -404,7 +404,7 @@ zfs change-key \
     -o keyformat=raw \
     poolname/Gmer4Lfe-Personal
 
-# Add to array_start.sh or ramdisk_setup.sh:
+# Add to array_started.sh or ramdisk_setup.sh:
 zfs load-key poolname/Gmer4Lfe-Personal
 zfs mount poolname/Gmer4Lfe-Personal
 
@@ -432,14 +432,15 @@ Individual scripts are never scheduled directly except the 30-minute Emby sync.
 
 ```bash
 #!/bin/bash
-bash /mnt/user/appdata/unraid_scripts/Orchestrators/array_start.sh
+bash /mnt/user/appdata/unraid_scripts/Orchestrators/array_started.sh
 # Schedule: At Startup of Array
 # Run as: Background Task
 ```
 
 This single entry launches everything defined in ARRAY_START_SCRIPTS from master.conf:
 inotify_tuning, docker_syslog_filter, php_fpm_max_children, ramdisk_setup,
-docker_network_connect, stability_watchdog, docker_watchdog, failover.
+docker_network_connect, fallback.
+Watchdogs (resource, docker, system, stability) run separately via watchdog_orchestrator.
 
 ### Cron Schedule