feat: CI/CD pipeline + Learning/Medicine/Travel services

- Add Gitea Actions workflow for automated build & deploy
- Add K8s manifests: webui, travel-svc, medicine-svc, sandbox-svc
- Update kustomization for localhost:5000 registry
- Add ingress for gooseek.ru and api.gooseek.ru
- Learning cabinet with onboarding, courses, sandbox integration
- Medicine service with symptom analysis and doctor matching
- Travel service with itinerary planning
- Server setup scripts (NVIDIA/CUDA, K3s, Gitea runner)

Made-with: Cursor

backend/webui/src/app/sitemap.ts

@@ -0,0 +1,40 @@
+import type { MetadataRoute } from 'next';
+
+const BASE_URL = 'https://gooseek.ru';
+
+const ALL_APP_ROUTES = [
+  '/discover',
+  '/spaces',
+  '/history',
+  '/travel',
+  '/medicine',
+  '/finance',
+  '/learning',
+];
+
+const ALWAYS_IN_SITEMAP = ['/', '/login', '/register'];
+
+function getEnabledAppRoutes(): string[] {
+  const raw = process.env.NEXT_PUBLIC_ENABLED_ROUTES || '';
+  if (!raw.trim()) return ALL_APP_ROUTES;
+
+  const enabled = new Set(
+    raw
+      .split(',')
+      .map((r) => r.trim())
+      .filter((r) => r.startsWith('/')),
+  );
+
+  return ALL_APP_ROUTES.filter((r) => enabled.has(r));
+}
+
+export default function sitemap(): MetadataRoute.Sitemap {
+  const routes = [...ALWAYS_IN_SITEMAP, ...getEnabledAppRoutes()];
+
+  return routes.map((route) => ({
+    url: `${BASE_URL}${route}`,
+    lastModified: new Date(),
+    changeFrequency: route === '/' ? 'daily' : 'weekly',
+    priority: route === '/' ? 1.0 : 0.7,
+  }));
+}