feat: rename array orchestrators, add docker_update remainder mode

- Rename array_start.sh → array_started.sh, array_stop.sh → array_stopping.sh
  to clarify these are event-driven (array has started/is stopping), not imperative
- Update all references across 9 files (master.conf, user_script_plug-in.sh,
  watchdogs, continuous_scripts_status.sh, claude_startup.sh)
- Add --remainder mode to docker_update.sh: updates all running containers
  excluding daily containers, weekly sync-window containers (emby + critical-data),
  and fallback coverage containers (FALLBACK_${MY_ID}_COVERS_${REMOTE_ID}_TIER*)
  Fallback containers excluded because the remote server owns their version —
  independent updates risk writeback incompatibility on handback
- weekly_sync_maintenance.sh calls docker_update.sh --remainder as final step
- git_pull_execute.sh: add safe.directory config to fix dubious ownership error
  when running as root on a directory owned by uid 1000

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

master.conf

@@ -36,7 +36,7 @@
 #   GIT / REPO                      Gitea repository and SSH settings
 #
 #   ── ORCHESTRATORS ──────────────────────────────────────────────────────────────────────────
-#   ARRAY START                     Scripts launched at array start (array_start.sh)
+#   ARRAY START                     Scripts launched at array start (array_started.sh)
 #   DAILY SYNC MAINTENANCE          Job list + media shares (daily_sync_maintenance.sh)
 #   WEEKLY SYNC MAINTENANCE         Job list + sync shares + update toggles (weekly_sync_maintenance.sh)
 #   CRITICAL SYNC MAINTENANCE       15-minute jobs + sync shares + partnership check (critical_sync_maintenance.sh)
@@ -264,7 +264,7 @@
 # No changes to orchestrator scripts needed when adding or removing jobs.
 
 # ━━━ Array Stop ━━━
-# Scripts run by array_stop.sh for a planned shutdown — stops everything cleanly in order.
+# Scripts run by array_stopping.sh for a planned shutdown — stops everything cleanly in order.
 # Run sequentially (foreground) — each must complete before the next starts.
 # Order matters: user scripts first (prevents new ops), then data movement, then containers.
     ARRAY_STOP_SCRIPTS=(
@@ -275,7 +275,7 @@
     )
 
 # ━━━ Array Start ━━━
-# Scripts launched by array_start.sh when the array comes online.
+# Scripts launched by array_started.sh when the array comes online.
 # Launched in order — each as a background process.
 # One-shot scripts (ramdisk, syslog, fpm, inotify, network) run and exit naturally.
 # Continuous scripts (watchdogs, failover) run until array stops.
@@ -561,7 +561,7 @@
 # ── FALLBACK ──────────────────────────────────────────────────────────────────────────────────
 # ==============================================================================================
 # Mutual container failover between two unRAID servers.
-# Each server runs Fallback/fallback.sh independently via array_start.sh.
+# Each server runs Fallback/fallback.sh independently via array_started.sh.
 # All decisions based on two pings: remote reachable + internet reachable.
 #
 # States: NORMAL | FALLBACK | NO_INTERNET | DARK
@@ -617,7 +617,7 @@
 
 # ━━━ Docker Watchdog ━━━
 # Continuous two-tier self-healing container monitoring.
-# Started by array_start.sh — runs until array stops.
+# Started by array_started.sh — runs until array stops.
 # Re-sources all three conf files each cycle — add/remove containers without restarting watchdog.
 #
 # Tier 1 — strict monitoring of explicitly configured containers:
@@ -1118,7 +1118,7 @@
 # ── SYSTEM WATCHDOG ───────────────────────────────────────────────────────────────────────────
 # ==============================================================================================
 # Continuous system health monitoring — last line of defense before a crash.
-# Started by array_start.sh — runs until array stops.
+# Started by array_started.sh — runs until array stops.
 # Re-sources all three conf files each cycle — config changes take effect on next cycle.
 #
 # ── THREE-TIER RESPONSE SYSTEM ────────────────────────────────────────────────────────────────