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/internal/agent/travel_hotels_collector.go

@@ -36,6 +36,8 @@ func CollectHotelsEnriched(ctx context.Context, cfg TravelOrchestratorConfig, br
 
 	hotels = deduplicateHotels(hotels)
 
+	hotels = filterHotelsNearDestinations(hotels, destinations, 250)
+
 	if len(hotels) > 10 {
 		hotels = hotels[:10]
 	}
@@ -400,6 +402,34 @@ func geocodeHotels(ctx context.Context, cfg TravelOrchestratorConfig, hotels []H
 	return hotels
 }
 
+func filterHotelsNearDestinations(hotels []HotelCard, destinations []destGeoEntry, maxKm float64) []HotelCard {
+	if len(destinations) == 0 {
+		return hotels
+	}
+	filtered := make([]HotelCard, 0, len(hotels))
+	for _, h := range hotels {
+		if h.Lat == 0 && h.Lng == 0 {
+			continue
+		}
+		minD := 1e18
+		for _, d := range destinations {
+			if d.Lat == 0 && d.Lng == 0 {
+				continue
+			}
+			dd := distanceKm(h.Lat, h.Lng, d.Lat, d.Lng)
+			if dd < minD {
+				minD = dd
+			}
+		}
+		if minD <= maxKm {
+			filtered = append(filtered, h)
+		} else {
+			log.Printf("[travel-hotels] dropped far hotel '%s' (%.0fkm from destinations)", h.Name, minD)
+		}
+	}
+	return filtered
+}
+
 func deduplicateHotels(hotels []HotelCard) []HotelCard {
 	seen := make(map[string]bool)
 	var unique []HotelCard