Improve backup scripts with logging and remove duplicate rotation

db-backup-standalone.sh:
- Add logging with timestamps to backups/db-backup-standalone.log
- Add SCRIPT_DIR to make all paths relative to script location
- Add detailed logging for each backup step (stop, backup, rotate, start)
- Log rotation status and which old backups are removed

db-scheduled-backup.sh:
- Remove duplicate backup rotation logic (now handled in standalone script)
- Comment out cleanup code to avoid redundant operations

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

db-scheduled-backup.sh

@@ -33,14 +33,15 @@ fi
 log "Starting database backup..."
 "$BACKUP_SCRIPT"
 
-# Delete backups older than 7 days
-BACKUP_DIR="${BACKUP_DIR:-backups}"
-if [ -d "$BACKUP_DIR" ]; then
-  log "Cleaning up backups older than 7 days in $BACKUP_DIR..."
-  find "$BACKUP_DIR" -name "mongo-volume-backup-*.tar.gz" -type f -mtime +7 -delete
-  log "Cleanup completed."
-else
-  log "Warning: Backup directory $BACKUP_DIR not found, skipping cleanup."
-fi
+# Rotation is already handled in db-backup-standalone.sh, so no need to repeat it here.
+# # Delete backups older than 7 days
+# BACKUP_DIR="${BACKUP_DIR:-backups}"
+# if [ -d "$BACKUP_DIR" ]; then
+#   log "Cleaning up backups older than 7 days in $BACKUP_DIR..."
+#   find "$BACKUP_DIR" -name "mongo-volume-backup-*.tar.gz" -type f -mtime +7 -delete
+#   log "Cleanup completed."
+# else
+#   log "Warning: Backup directory $BACKUP_DIR not found, skipping cleanup."
+# fi
 
 log "Scheduled backup completed successfully."