Add system/hardware info to the Synology page

Beyond volume/disk health, DSM exposes hostname, CPU, RAM, IP
addresses, model/serial/firmware, and uptime -- surface those too as a
"System" card on the Synology page.

New adapter.getSystemInfo() combines three DSM Web API calls (fields
confirmed against the actively-maintained mib1185/py-synologydsm-api
client, which documents the same SYNO.Core.System / SYNO.Core.System.
Utilization / SYNO.DSM.Network endpoints this adapter already uses the
discover-then-call pattern for):
- SYNO.Core.System "info" -- model, serial, firmware_ver, cpu_cores,
  cpu_clock_speed, up_time (a raw uptime-command-style string, not a
  duration -- parsed client-side into "5d 15h 2m" with a fallback to
  the raw string if DSM ever returns an unexpected format).
- SYNO.Core.System.Utilization "get" -- live CPU load % (user+system+
  other) and real memory usage, in KB.
- SYNO.DSM.Network "list" -- hostname and interface IP addresses
  (loopback filtered out).

New GET /:id/synology/system route alongside the existing /storage
one, read-only like the rest of this integration.

Verified end-to-end against a local mock DSM server standing in for
the real API (login/session flow, all three endpoint shapes, IP
filtering, byte math) since this sandbox can't reach the user's LAN;
also unit-checked the client-side uptime regex against DSM's three
uptime-command formats (with/without days, minutes-only) plus its
unmatched-format fallback.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

web/src/api/client.ts

@@ -434,6 +434,17 @@ export interface SynologyStorageResponse {
   summary: { volumeCount: number; volumesNotNormal: number; diskCount: number; disksNotNormal: number };
 }
 
+export interface SynologySystemInfo {
+  hostname: string | null;
+  model: string | null;
+  serial: string | null;
+  firmwareVersion: string | null;
+  uptime: string | null;
+  ipAddresses: string[];
+  cpu: { cores: number | null; clockSpeedMHz: number | null; loadPercent: number | null };
+  memory: { totalBytes: number | null; usedBytes: number | null };
+}
+
 export class UnauthorizedError extends Error {}
 export class ForbiddenError extends Error {}
 
@@ -669,6 +680,7 @@ export const api = {
     },
     synology: {
       storage: (integrationId: number) => request<SynologyStorageResponse>(`/api/integrations/${integrationId}/synology/storage`),
+      system: (integrationId: number) => request<SynologySystemInfo>(`/api/integrations/${integrationId}/synology/system`),
     },
   },
   settings: {