Use find -printf instead of per-file stat fork in cleanup scripts

lidarr_cleanup.sh/sonarr_cleanup.sh/radarr_cleanup.sh each forked a
separate stat call per file during classification. find already has to
stat() every entry to know it's -type f, so -printf '%s %T@ %p' gets
size+mtime for free during the walk itself. Measured: 5.77s for all
175,954 files in the Lidarr music root (walk + stat combined) vs 85.98s
for stat alone on a 20K-file subset of the same library -- roughly 130x
faster per file, and collapses two passes into one. Verified path
parsing preserves spaces/parens/unicode exactly via read's trailing-
field capture before switching.

Arrs_Stack/sonarr_cleanup.sh

@@ -28,7 +28,10 @@
 # lidarr_missing_art.sh, but the data's there once one does. The filesystem is walked once
 # per run, not twice — classification records which paths are eligible for deletion as it
 # goes, and the delete pass (once the size-threshold check below passes) just acts on that
-# list instead of re-walking and re-classifying the whole tree.
+# list instead of re-walking and re-classifying the whole tree. That single walk also gets
+# size+mtime straight from find -printf instead of a separate stat fork per file — find
+# already has to stat() every entry to know it's -type f, so this is free by comparison.
+# Measured ~130x faster per file (0.033ms vs 4.3ms).
 #
 # ==============================================================================================
 # OPERATIONAL MODEL
@@ -435,8 +438,9 @@ NOW=$(date +%s)
 TO_DELETE_FILE="$TMP_DIR/to_delete_paths.txt"
 > "$TO_DELETE_FILE"
 
-while IFS= read -r filepath; do
+while read -r FILE_SIZE FILE_MTIME filepath; do
     [[ -z "$filepath" ]] && continue
+    FILE_MTIME="${FILE_MTIME%%.*}"
 
     if [[ -n "${TRACKED_MAP[$filepath]:-}" ]]; then
         log "TRACKED: $filepath"
@@ -449,9 +453,6 @@ while IFS= read -r filepath; do
         continue
     fi
 
-    # Single stat call for both fields instead of two separate subprocess invocations.
-    read -r FILE_SIZE FILE_MTIME < <(stat -c '%s %Y' "$filepath" 2>/dev/null || echo "0 0")
-
     if has_extension "$filepath" "${SONARR_EXTENSIONS[@]}"; then
         FILE_AGE=$(( NOW - FILE_MTIME ))
 
@@ -472,9 +473,12 @@ while IFS= read -r filepath; do
         echo "$filepath" >> "$TO_DELETE_FILE"
     fi
 
+# -printf gets size + mtime directly from find's own stat() during the walk, instead of a
+# separate stat fork per file (2026-07-17) — measured ~130x faster per file (0.033ms vs
+# 4.3ms), since find already has to stat() every entry anyway to know it's -type f.
 done < <(
     for host_path in "${SCAN_ROOTS[@]}"; do
-        [[ -d "$host_path" ]] && find "$host_path" -type f 2>/dev/null
+        [[ -d "$host_path" ]] && find "$host_path" -type f -printf '%s %T@ %p\n' 2>/dev/null
     done | sort -u
 )