feat: интеграция с VPS Tracker

Исходящий sync bindings после updateConfig, настройки в app_settings, страница Интеграции, приём событий vps_down для DNS failover.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/api/src/routes/health.ts

@@ -1,6 +1,7 @@
 import type { FastifyInstance } from "fastify";
 import { z } from "zod";
 import { healthCheck } from "../plugins/db.js";
+import { getAppSwitcher } from "@cfdm/db/settings-repo";
 import * as authService from "../services/auth.js";
 
 export async function healthRoutes(app: FastifyInstance) {
@@ -31,6 +32,10 @@ export async function healthRoutes(app: FastifyInstance) {
 }
 
 export async function authRoutes(app: FastifyInstance) {
+  app.get("/settings/app-switcher", async (request) => {
+    return getAppSwitcher(request.server.db);
+  });
+
   const loginSchema = z.object({
     username: z.string(),
     password: z.string(),