Add minWidth: 0 and overflow: hidden to ChartPanel (CSS Grid item)
and minWidth: 0 to BeszelAreaChart. Prevents ResponsiveContainer from
computing negative width/height in grid/flex layouts before first paint.
Add JSDoc comments to all Beszel PocketBase API types explaining the
cryptic short field names (cpu, mu, du, dr, ns, b, etc.), their units
(bytes, bytes/s, percentages), and the distinction between ns/nr
(all-interface traffic) vs b (public interface bandwidth).
Also documents the mapToSystemRow mapping and chart data extractors
so future readers understand the data flow without needing Beszel
source code.
In Beszel, ns/nr are all-interface traffic (loopback, docker bridges)
while b is public interface bandwidth. Use b with ns/nr fallback for
both system stats and container network charts to match what the
grid/table display via netBytes.
Create useBeszelSystemsSubscription and useBeszelFilteredSystems hooks
to eliminate duplicated subscription + cache-update + filtering logic
across grid/table/alerts. Add BeszelAreaChart wrapper and chart data
hooks (useSystemChartData, useDockerChartData) to reduce ~90 lines of
repetitive useMemo transforms in system-stats. Add portal tooltip with
mousemove listener gated on active state to prevent unnecessary
re-renders during drag-and-drop.