12-Mar-2026 — System-settings and Bookings: 2 fixes #180

build 520 — commit 807602f

• fix crash on missing groupCode
• guard missing footer.appDownloads to prevent crash on footer tab
• extract headerDefaults, externalSystemsDefaults, footerDefaults, appDownloadsDefaults for DRY config
• upgrade @annix/claude-swarm to 0.1.18 and pin version

bookings: use shared array helper in booking migration