feat: add GPU monitoring support via Glances integration (#5255)

* feat: add GPU monitoring support via Glances integration

- Add GPU fields to SystemHealthMonitoring interface (gpuId, name,
  memoryUtilization, processorUtilization, temperature, fanSpeed)
- Extend Glances integration to parse GPU data from /api/4/all endpoint
  (supports NVIDIA, AMD, and Intel GPUs via Glances)
- Add GPU utilization ring to Health Monitoring widget with tooltip
  showing VRAM usage, temperature, and fan speed
- Add GPU time-series chart to System Resources widget (grape color)
- Add GPU toggle option to both widgets
- Add English translations for GPU labels
- Add gpu: [] to all other integrations (dashdot, truenas, unraid,
  openmediavault) for backward compatibility
- Add GPU mock data for development/testing

Closes community request from PR #5102 for GPU monitoring support.

* fix: implement GPU monitoring for dashdot integration and clarify OMV comment

- Add GPU load fetching via dashdot /load/gpu endpoint
- Add GPU info parsing from dashdot /info endpoint
- Add gpuLoadApi and gpu field to internalServerInfoApi schemas
- Add getCurrentGpuLoadAsync method to DashDotIntegration
- Map GPU load data to SystemHealthMonitoring gpu array
- Add explanatory comment for OMV's empty gpu array

Addresses review comments from manuel-rw on PR #5255

* Delete manifest.json

packages/integrations/src/glances/glances-integration.ts

@@ -59,6 +59,14 @@ export class GlancesIntegration extends Integration implements ISystemHealthMoni
       loadAverage: null,
       smart: [],
       cpuTemp: undefined,
+      gpu: stats.gpu.map((gpu) => ({
+        gpuId: gpu.gpu_id,
+        name: gpu.name,
+        memoryUtilization: gpu.mem ?? 0,
+        processorUtilization: gpu.proc ?? 0,
+        temperature: gpu.temperature ?? null,
+        fanSpeed: gpu.fan_speed ?? null,
+      })),
     };
   }
 
@@ -150,4 +158,16 @@ const allSchema = z.object({
   quicklook: z.object({
     cpu_name: z.string(),
   }),
+  gpu: z
+    .array(
+      z.object({
+        gpu_id: z.string(),
+        name: z.string(),
+        mem: z.number().nullable().optional(),
+        proc: z.number().nullable().optional(),
+        temperature: z.number().nullable().optional(),
+        fan_speed: z.number().nullable().optional(),
+      }),
+    )
+    .default([]),
 });