Refactor web_scan.py for improved readability and maintainability; add cron job script for npm log backups; update start.ps1 for consistent formatting.

copy_npm_logs.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+# Shell script to be run as cron job to copy npm logs to backup location.
+
+# Stop npm service to ensure logs are not being written to while copying.
+systemctl stop npm
+
+# Only copy new/changed log files to avoid re-copying existing backups.
+# --ignore-existing: never overwrite files already present in the destination.
+# -c: compare files by checksum so matching files are not re-written.
+# -P: preserve permissions + show progress.
+rsync -qcP --ignore-existing /data/logs/*access* /data/logs/*error* /mnt/backups/npm/
+
+# Start npm service again after copying logs.
+systemctl start npm