feat: Add Traefik Integration with dedicated widget and Add optional Icons for Gotify/Notifcation Widget (ONLY GOTIFY) (#6206)

Co-authored-by: Thomas <thomas@ajnart.fr>

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

@@ -0,0 +1,31 @@
+import { traefikRequestHandler } from "@homarr/request-handler/traefik";
+
+import { createManyIntegrationMiddleware } from "../../middlewares/integration";
+import { settleIntegrationQueries } from "../../settle-integrations";
+import { createTRPCRouter, publicProcedure } from "../../trpc";
+
+export const traefikRouter = createTRPCRouter({
+  getDashboard: publicProcedure
+    .meta({
+      mcp: {
+        enabled: true,
+        description:
+          "Retrieve Traefik dashboard data, including routers, services, middlewares, and entry points, for the given integration IDs.",
+      },
+    })
+    .concat(createManyIntegrationMiddleware("query", "traefik"))
+    .query(async ({ ctx }) => {
+      return await settleIntegrationQueries(ctx.integrations, async (integration) => {
+        const innerHandler = traefikRequestHandler.handler(integration, {});
+        const { data, timestamp } = await innerHandler.getDataAsync();
+
+        return {
+          integrationId: integration.id,
+          integrationName: integration.name,
+          integrationUrl: integration.url,
+          dashboard: data,
+          updatedAt: timestamp,
+        };
+      });
+    }),
+});