fix: restore dropped log() calls in shared rollback helpers

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

scripts/setup/mysql_common.sh

@@ -509,6 +509,7 @@ backup_alt_database_for_rollback() {
         return 0
     fi
 
+    log "creating rollback dump: $db"
     if mysqldump_exec \
         --single-transaction \
         --quick \
@@ -532,9 +533,11 @@ restore_alt_database_from_rollback() {
         return 0
     fi
 
+    log "restoring rollback dump: $db"
     mysql_exec mysql -e "DROP DATABASE IF EXISTS $(mysql_quote_identifier "$db");" >> "${LOG_FILE:-/dev/null}" 2>&1 || true
     mysql_exec mysql -e "CREATE DATABASE $(mysql_quote_identifier "$db") CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;" >> "${LOG_FILE:-/dev/null}" 2>&1 || true
     mysql_exec "$db" < "$RESTORE_ROLLBACK_FILE" >> "${LOG_FILE:-/dev/null}" 2>&1 || {
+        log "ERROR: rollback restore failed for $db"
         return 1
     }
 }