Update app.py

app.py

@@ -324,7 +324,7 @@ def download_logs(admin_password):
         tmp_dir = tempfile.mkdtemp()
 
         # ✅ 変更点：DL用ファイル名を日付・時間付きにする（JST）
-        ts = (datetime.utcnow() + timedelta(hours=9)).strftime("%Y%m%d_%H%M%S")
+        ts = (datetime.utcnow() + timedelta(hours=9)).strftime("%Y%m%d_%H%M")
         out_path = os.path.join(tmp_dir, f"logs_{ts}.csv")
 
         with open(LOG_FILE, "rb") as fsrc, open(out_path, "wb") as fdst: