Summary
• Centralized uptime status definition via `uptimeStatusMap`, containing color / label / text for each status.
• Generated `uptimeLegendData`, `getUptimeStatusColor`, `getUptimeStatusText` directly from the map, removing multiple switch-case blocks.
UI Improvements
1. Added statuses 2 (High Latency) & 3 (Maintenance) with dedicated colors.
2. Relocated status legend to a styled footer wrapped in a borderless sub-Card; header now only shows title + refresh button.
3. Footer (and its negative margin) renders only when `uptimeData` is present, preventing empty legend display.
4. Applied rounded, blurred badge style and always-on shadow to legend container for clearer separation.
Maintenance
• Simplified code paths, reduced duplication, and improved readability without breaking existing functionality.
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