fix(beszel): correct unit scaling for system stats and container charts

Beszel API returns pre-scaled values, not raw bytes as the types claimed:
- Storage (du/mu/mb): GB — remove /BYTES_TO_GB division
- Disk I/O (dr/dw): MB/s — multiply by 1024² for formatters
- Container memory (m): MB — multiply by 1024² for formatters
- Container network (b/ns/nr): bytes/s — passthrough, unchanged

Also fix Recharts width(-1)/height(-1) warnings by adding w=100%
and minHeight:0 to BeszelAreaChart.

packages/integrations/src/beszel/beszel-types.ts

@@ -94,8 +94,8 @@ export interface BeszelSystemDetails {
  *
  * Units:
  * - CPU/GPU/memory/disk percentages: 0–100
- * - Memory/disk absolute values (mu, du, etc.): bytes
- * - Disk I/O (dr, dw): bytes/s
+ * - Memory/disk absolute values (mu, du, m, d, etc.): GB
+ * - Disk I/O (dr, dw): MB/s
  * - Network (ns, nr): bytes/s — all interfaces (including loopback, docker bridges)
  * - Bandwidth (b): bytes/s [sent, recv] — public interfaces only. Prefer b over ns/nr for user-facing charts
  */
@@ -110,35 +110,35 @@ export interface BeszelSystemStats {
   cpus?: number[];
   /** load average [1m, 5m, 15m] */
   la?: [number, number, number];
-  /** total memory (bytes) */
+  /** total memory (GB) */
   m: number;
-  /** memory used (bytes) */
+  /** memory used (GB) */
   mu: number;
   /** memory usage (%) */
   mp: number;
-  /** memory buffer/cache (bytes) */
+  /** memory buffer/cache (GB) */
   mb: number;
-  /** memory max used (bytes) */
+  /** memory max used (GB) */
   mm?: number;
-  /** memory zfs arc (bytes) */
+  /** memory zfs arc (GB) */
   mz?: number;
-  /** total swap (bytes) */
+  /** total swap (GB) */
   s: number;
-  /** swap used (bytes) */
+  /** swap used (GB) */
   su: number;
-  /** total disk (bytes) */
+  /** total disk (GB) */
   d: number;
-  /** disk used (bytes) */
+  /** disk used (GB) */
   du: number;
   /** disk usage (%) */
   dp: number;
-  /** disk read (bytes/s) */
+  /** disk read (MB/s) */
   dr: number;
-  /** disk write (bytes/s) */
+  /** disk write (MB/s) */
   dw: number;
-  /** disk read max (bytes/s) */
+  /** disk read max (MB/s) */
   drm?: number;
-  /** disk write max (bytes/s) */
+  /** disk write max (MB/s) */
   dwm?: number;
   /** disk IOPS [read, write] */
   dio?: [number, number];
@@ -236,13 +236,14 @@ export interface BeszelContainer {
  * One entry per container in a BeszelContainerStatsRecord.
  *
  * Network fields: b (bandwidth) is preferred when available; fall back to ns/nr.
+ * Units: m = MB, c = %, b/ns/nr = bytes/s
  */
 export interface BeszelContainerStats {
   /** container name */
   n: string;
   /** CPU usage (%) */
   c: number;
-  /** memory usage (bytes) */
+  /** memory usage (MB) */
   m: number;
   /** network sent (bytes/s) — legacy, use b when available */
   ns?: number;

packages/integrations/src/mock/data/beszel.ts

@@ -10,7 +10,6 @@ import type {
 } from "../../beszel/beszel-types";
 
 const GB = 1024 * 1024 * 1024;
-const MB = 1024 * 1024;
 const KB = 1024;
 
 interface MockSystemDef {
@@ -144,26 +143,27 @@ function generateSystemStatsSeries(count: number, sys: MockSystemDef): BeszelSys
   const netSendWalk = smoothWalk(500, 200, count, 10, 8000);
   const netRecvWalk = smoothWalk(800, 300, count, 10, 12000);
 
-  const memTotal = sys.mem;
   const diskTotal = rand(200, 2000) * GB;
 
   return cpuWalk.map((cpu, i) => {
     const memPct = memPctWalk[i] ?? sys.baseMem;
     const diskPct = diskPctWalk[i] ?? sys.baseDisk;
+    const memTotalGB = sys.mem / GB;
+    const diskTotalGB = diskTotal / GB;
     return {
       cpu,
       la: [cpu / 20 + rand(0, 0.5), cpu / 25 + rand(0, 0.3), cpu / 30 + rand(0, 0.2)] as [number, number, number],
-      m: memTotal,
-      mu: (memTotal * memPct) / 100,
+      m: memTotalGB,
+      mu: memTotalGB * memPct / 100,
       mp: memPct,
-      mb: rand(0.5, 4) * GB,
-      s: 4 * GB,
-      su: rand(0, 2) * GB,
-      d: diskTotal,
-      du: (diskTotal * diskPct) / 100,
+      mb: rand(0.5, 4),
+      s: 4,
+      su: rand(0, 2),
+      d: diskTotalGB,
+      du: diskTotalGB * diskPct / 100,
       dp: diskPct,
-      dr: (diskReadWalk[i] ?? 5) * MB,
-      dw: (diskWriteWalk[i] ?? 3) * MB,
+      dr: (diskReadWalk[i] ?? 5),
+      dw: (diskWriteWalk[i] ?? 3),
       ns: (netSendWalk[i] ?? 500) * KB,
       nr: (netRecvWalk[i] ?? 800) * KB,
       b: [(netSendWalk[i] ?? 500) * KB * 0.7, (netRecvWalk[i] ?? 800) * KB * 0.7] as [number, number],
@@ -183,7 +183,7 @@ function generateContainerStatsSeries(count: number, profiles: typeof containerP
     walks.map(({ profile, cpuWalk, memWalk, netWalk }) => ({
       n: profile.name,
       c: cpuWalk[i] ?? profile.cpuBase,
-      m: (memWalk[i] ?? profile.memMB) * MB,
+      m: memWalk[i] ?? profile.memMB,
       b: [(netWalk[i] ?? profile.netKB) * KB * 0.4, (netWalk[i] ?? profile.netKB) * KB * 0.6] as [number, number],
     })),
   );
@@ -264,13 +264,15 @@ export class BeszelMockService {
     const sys = resolveSystem(systemId);
     const intervalMinutes = typeToMinutes[type] ?? 1;
     const statsSeries = generateSystemStatsSeries(perPage, sys);
-    return buildTimeSeries(
+    const result = buildTimeSeries(
       systemId,
       perPage,
       intervalMinutes,
       type,
       statsSeries.map((stats) => ({ stats })),
     );
+
+    return result;
   }
 
   public async getContainerStatsAsync(
@@ -284,13 +286,15 @@ export class BeszelMockService {
       .map((i) => containerProfiles[i])
       .filter(Boolean) as typeof containerProfiles;
     const series = generateContainerStatsSeries(perPage, selectedProfiles);
-    return buildTimeSeries(
+    const result = buildTimeSeries(
       systemId,
       perPage,
       intervalMinutes,
       type,
       series.map((stats) => ({ stats })),
     );
+
+    return result;
   }
 
   public async getAlertsAsync(): Promise<BeszelAlert[]> {

packages/widgets/src/beszel-system-stats/component.tsx

@@ -63,23 +63,23 @@ export default function BeszelSystemStatsWidget({
     { staleTime: 30 * 1000 },
   );
 
-  // BeszelSystemStats fields are documented in beszel-types.ts.
-  // mu/du = bytes, dr/dw = bytes/s, b = public bandwidth [sent,recv] bytes/s, ns/nr = all-interface bytes/s
-  const BYTES_TO_GB = 1024 * 1024 * 1024;
+  // BeszelSystemStats fields: storage values (m, mu, mb, d, du, s, su) are already in GB.
+  // Disk I/O (dr, dw) is in MB/s — scale to bytes/s for display formatters.
+  // Network (ns, nr, b) is in bytes/s. Container memory (m) is in MB.
 
   const cpuMap = useCallback((s: { cpu: number }) => ({ [t("chart.cpu.series")]: s.cpu }), [t]);
   const memoryMap = useCallback(
     (s: { mu: number; mb: number }) => ({
-      [t("chart.memory.series")]: s.mu / BYTES_TO_GB,
-      [t("chart.memory.cache")]: (s.mb ?? 0) / BYTES_TO_GB,
+      [t("chart.memory.series")]: s.mu,
+      [t("chart.memory.cache")]: s.mb ?? 0,
     }),
     [t],
   );
-  const diskMap = useCallback((s: { du: number }) => ({ [t("chart.disk.series")]: s.du / BYTES_TO_GB }), [t]);
+  const diskMap = useCallback((s: { du: number }) => ({ [t("chart.disk.series")]: s.du }), [t]);
   const diskIOMap = useCallback(
     (s: { dr?: number; dw?: number }) => ({
-      [t("chart.diskIO.read")]: s.dr ?? 0,
-      [t("chart.diskIO.write")]: s.dw ?? 0,
+      [t("chart.diskIO.read")]: (s.dr ?? 0) * (1024 * 1024),
+      [t("chart.diskIO.write")]: (s.dw ?? 0) * (1024 * 1024),
     }),
     [t],
   );

packages/widgets/src/beszel/_shared/chart.tsx

@@ -46,7 +46,8 @@ export const BeszelAreaChart = ({ yAxisFormatter, yAxisDomain, yAxisProps, style
     withDots={false}
     withXAxis
     withYAxis
-    style={{ minWidth: 0, ...style }}
+    w="100%"
+    style={{ minWidth: 0, minHeight: 0, ...style }}
     yAxisProps={{
       ...yAxisBase,
       ...(yAxisDomain ? { domain: yAxisDomain } : {}),
@@ -83,10 +84,12 @@ export const useContainerNames = (containerStats: BeszelContainerStatsRecord[] |
 
 type ContainerExtractor = (container: BeszelContainerStatsRecord["stats"][number] | undefined) => number;
 
-// c = CPU (%), m = memory (bytes), b = bandwidth [sent,recv] (bytes/s), ns/nr = legacy net (bytes/s)
+// c = CPU (%), m = memory (MB), b = bandwidth [sent,recv] (bytes/s), ns/nr = legacy net (bytes/s)
+const MB = 1024 * 1024;
+
 const defaultContainerExtractors: Record<string, ContainerExtractor> = {
   cpu: (c) => c?.c ?? 0,
-  memory: (c) => c?.m ?? 0,
+  memory: (c) => (c?.m ?? 0) * MB,
   network: (c) => (c?.b ? c.b[0] + c.b[1] : (c?.ns ?? 0) + (c?.nr ?? 0)),
 };