feat: add hourly rolling logs

backend/scripts/extract_logs.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+# Extract gzipped logs from the last three days into a target directory.
+# Usage: ./extract_logs.sh [output_dir]
+set -e
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+LOG_DIR="${SCRIPT_DIR}/../logs"
+OUTPUT_DIR="${1:-${SCRIPT_DIR}/extracted}"
+
+mkdir -p "$OUTPUT_DIR"
+find "$LOG_DIR" -name 'application-*.log.gz' -mtime -3 -print \
+  -exec sh -c 'gzip -dc "$1" > "$2/$(basename "$1" .gz)"' _ {} "$OUTPUT_DIR" \;
+echo "Logs extracted to $OUTPUT_DIR"