feat(tui): multi-row color-coded sparkline chart with Y-axis

Replace ntcharts with custom multi-row sparkline. Each bar is color- coded by latency threshold (green < 200ms, yellow < 500ms, red > 500ms) and DOWN checks render in red. 3 rows tall with 24 discrete levels. Y-axis labels (max/min ms) on the left, Min/Avg/Max stats below. Zero external dependencies — removed ntcharts.
2026-06-21 17:43:50 -04:00
parent a8c43bdb8e
commit 4af800a359
5 changed files with 66 additions and 35 deletions
@@ -1,7 +1,5 @@
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