Update sync helper script

- Should fix partial files during uploads sometimes not copying fully

.helpers/listen.sh

@@ -1,8 +1,35 @@
-#!/bin/sh
-# Initial sync on startup to ensure /app is up to date with /blueprint_extensions
-rsync -av --exclude=".blueprint" --include="*.blueprint*" --exclude="*" --delete /blueprint_extensions/ /app/
+#!/bin/bash
+set -euo pipefail
 
-# Continuously watch for file changes in /blueprint_extensions
-while inotifywait -r -e create,delete,modify,move --include=".*\\.blueprint$" /blueprint_extensions; do
-    rsync -av --exclude=".blueprint" --include="*.blueprint*" --exclude="*" --delete /blueprint_extensions/ /app/
-done
+trap 'echo "Interrupted"; exit 1' INT TERM
+
+# Initial sync
+rsync -av --exclude=".blueprint" --include="*.blueprint*" --exclude="*" --delete "/blueprint_extensions/" "/app/"
+
+# Continuous monitor task
+inotifywait -m -q \
+  -e close_write,delete,moved_to,moved_from \
+  --format '%e %w%f' \
+  "/blueprint_extensions/" |
+while read -r event filepath; do
+    case "$filepath" in
+        *.blueprint)
+            case "$event" in
+                CLOSE_WRITE,CLOSE|MOVED_TO)
+                    if ! cp "$filepath" "/app/$(basename "$filepath")"; then
+                        echo "Error copying: $filepath" >&2
+                    else
+                        echo "Updated: $filepath"
+                    fi
+                    ;;
+                DELETE|MOVED_FROM)
+                    if ! rm -f "/app/$(basename "$filepath")"; then
+                        echo "Error removing: $filepath" >&2
+                    else
+                        echo "Removed: $filepath"
+                    fi
+                    ;;
+            esac
+            ;;
+    esac
+done