Wire up unused config vars found in follow-up audit pass

TRANSCODE_LOG_RETENTION was documented as trimming the daily transcode log
but never referenced — log grew unbounded. TRANSCODE_ORPHAN_AGE was shown in
--status but never used, so empty session folders were deleted immediately
instead of after the documented grace period, risking a race against ffmpeg
creating a folder just before writing its first segment.

docker_watchdog.sh's daemon-health thresholds were only hardcoded fallbacks
despite comments claiming they were master.conf-configurable, and it
referenced a heartbeat feature that was never implemented (that's owned by
watchdog_orchestrator.sh, its caller) — added the three thresholds to
master.conf for real and removed the stale heartbeat claim.

Also added the missing HOSTN_PARTNERSHIP_SERVICES_STACK block to
host.conf.template (containers.sh already read it via detect_hosts, just
never had a template entry) and corrected play_state_sync.sh's doc comment
for PLAY_SYNC_TYPES' actual default.

Configurations/master.conf

@@ -813,6 +813,11 @@
 # Notification batching — one summary per cycle instead of one ping per event
     WATCHDOG_BATCH_NOTIFY=true
 
+# Docker daemon health check — hung daemon detection at the start of each cycle
+    WATCHDOG_DAEMON_TIMEOUT=20            # seconds — timeout for all docker commands
+    WATCHDOG_DAEMON_STRIKE_LIMIT=3        # consecutive failed checks before restart attempt
+    WATCHDOG_DAEMON_RESTART_WAIT=900      # seconds to wait after restart before verifying
+
 # Appdata size monitoring — two-part catch-all for runaway growth and oversized log files.
 #
 # Part 1 — Growth rate (zero-config):

Deployment/host.conf.template

@@ -151,6 +151,11 @@
         # "my-Radarr.xml"
     )
 
+# XML templates pushed to mirror during onboard — other services (not auth, not arr).
+    HOSTN_PARTNERSHIP_SERVICES_STACK=(
+        # "my-Lidarr.xml"
+    )
+
 # Paths the partner should collect during the grace window after offboard.
     HOSTN_PARTNERSHIP_MIRROR_BACKUPS=(
         # "/mnt/user/appdata-Fallback/Partner-Emby"

Deployment/master.conf.template

@@ -808,6 +808,11 @@
 # Notification batching — one summary per cycle instead of one ping per event
     WATCHDOG_BATCH_NOTIFY=true
 
+# Docker daemon health check — hung daemon detection at the start of each cycle
+    WATCHDOG_DAEMON_TIMEOUT=20            # seconds — timeout for all docker commands
+    WATCHDOG_DAEMON_STRIKE_LIMIT=3        # consecutive failed checks before restart attempt
+    WATCHDOG_DAEMON_RESTART_WAIT=900      # seconds to wait after restart before verifying
+
 # Appdata size monitoring — two-part catch-all for runaway growth and oversized log files.
 #
 # Part 1 — Growth rate (zero-config):

Media/play_state_sync.sh

@@ -79,7 +79,8 @@
 #                            false = local servers only (this host's Emby + Jellyfin)
 #   PLAY_SYNC_DAYS           How many days back to check for played items (default: 90)
 #                            Use 0 to sync all played items (slow on large libraries).
-#   PLAY_SYNC_TYPES          Comma-separated item types to sync (default: Movie,Episode,Audio)
+#   PLAY_SYNC_TYPES          Comma-separated item types to sync (default: Movie,Episode —
+#                            Audio excluded, music library too large; favorites handled separately)
 #
 # ==============================================================================================
 # RUNTIME MODES

Transcodes/transcode_cleanup.sh

@@ -230,10 +230,11 @@ cleanup_location() {
 
     done < <(find "$location" -type f -mmin +"$max_age" 2>/dev/null)
 
-    # Remove empty directories — but NEVER remove transcoding-temp
+    # Remove empty directories older than TRANSCODE_ORPHAN_AGE — but NEVER remove
-    # transcoding-temp must always exist on ramdisk so Emby finds it there first
+    # transcoding-temp. Age gate avoids deleting a session folder ffmpeg just
+    # created but hasn't written its first segment into yet.
     if [[ "$DRY_RUN" == false ]]; then
-        find "$location" -mindepth 1 -type d -empty \
+        find "$location" -mindepth 1 -type d -empty -mmin +"${TRANSCODE_ORPHAN_AGE:-30}" \
             ! -name "transcoding-temp" -delete 2>/dev/null
     fi
 

Transcodes/transcode_manager.sh

@@ -647,6 +647,14 @@ if [[ "$DRY_RUN" == false && "$NO_LOG" == false && -n "${TRANSCODE_DAILY_LOG:-}"
     echo "${TODAY}|${RAMDISK_USED_GB}|${FLIP_COUNT}|${RAM_SESSION_COUNT}|${SSD_SESSION_COUNT}" \
         >> "$TRANSCODE_DAILY_LOG" 2>/dev/null || true
     log "Daily log written: $TRANSCODE_DAILY_LOG"
+
+    # Trim entries older than TRANSCODE_LOG_RETENTION days
+    LOG_CUTOFF=$(date -d "${TRANSCODE_LOG_RETENTION:-90} days ago" '+%Y-%m-%d' 2>/dev/null)
+    if [[ -n "$LOG_CUTOFF" ]]; then
+        awk -F'|' -v cutoff="$LOG_CUTOFF" '$1 >= cutoff' "$TRANSCODE_DAILY_LOG" \
+            > "${TRANSCODE_DAILY_LOG}.tmp" 2>/dev/null && \
+            mv "${TRANSCODE_DAILY_LOG}.tmp" "$TRANSCODE_DAILY_LOG"
+    fi
 fi
 
 # ==============================================================================================

Watchdogs/docker_watchdog.sh

@@ -82,7 +82,8 @@
 #
 # Silent When Healthy
 #   Runs 96 times per day. Producing output on every clean cycle would make
-#   logs useless. Output only when something needs attention or a heartbeat fires.
+#   logs useless. Output only when something needs attention — alive heartbeat
+#   is handled by watchdog_orchestrator.sh, the caller, not this script.
 #
 # ==============================================================================================
 # OPERATIONAL SAFEGUARDS
@@ -196,8 +197,9 @@
 #   WATCHDOG_BATCH_NOTIFY
 #       Collect cycle events and send as one notification (default: true)
 #
-#   DOCKER_WATCHDOG_HEARTBEAT_HOURS
+#   WATCHDOG_DAEMON_TIMEOUT / WATCHDOG_DAEMON_STRIKE_LIMIT / WATCHDOG_DAEMON_RESTART_WAIT
-#       Hours between alive heartbeat log entries
+#       Docker daemon health check: command timeout, strikes before restart attempt,
+#       seconds to wait after restart before verifying
 #
 #   DOCKER_WATCHDOG_INTENTIONAL_FILE
 #       Path to intentional stops state file (STATE_DIR). Containers in this file