feat(beszel): add Beszel integration with system monitoring widgets (#5900)

packages/api/src/router/widgets/index.ts

@@ -3,6 +3,7 @@ import { lazy } from "@trpc/server";
 import { createTRPCRouter } from "../../trpc";
 
 export const widgetRouter = createTRPCRouter({
+  beszel: lazy(() => import("./beszel").then((mod) => mod.beszelRouter)),
   anchorNotes: lazy(() => import("./anchor-notes").then((mod) => mod.anchorNotesRouter)),
   coolify: lazy(() => import("./coolify").then((mod) => mod.coolifyRouter)),
   immich: lazy(() => import("./immich").then((mod) => mod.immichRouter)),