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/cmd/travel-svc/main.go

@@ -121,6 +121,7 @@ func main() {
 	api.Get("/poi", middleware.JWT(jwtOptional), handleSearchPOI(svc))
 	api.Post("/poi", middleware.JWT(jwtOptional), handleSearchPOIPost(svc))
 	api.Post("/places", middleware.JWT(jwtOptional), handleSearchPlaces(svc))
+	api.Post("/validate-itinerary", middleware.JWT(jwtOptional), handleValidateItinerary(svc))
 
 	port := getEnvInt("PORT", 3035)
 	log.Printf("travel-svc listening on :%d", port)
@@ -522,6 +523,28 @@ func handleSearchPlaces(svc *travel.Service) fiber.Handler {
 	}
 }
 
+func handleValidateItinerary(svc *travel.Service) fiber.Handler {
+	return func(c *fiber.Ctx) error {
+		var req travel.ValidateItineraryRequest
+		if err := c.BodyParser(&req); err != nil {
+			return c.Status(400).JSON(fiber.Map{"error": "Invalid request body"})
+		}
+		if len(req.Days) == 0 {
+			return c.Status(400).JSON(fiber.Map{"error": "days required"})
+		}
+
+		ctx, cancel := context.WithTimeout(c.Context(), 30*time.Second)
+		defer cancel()
+
+		result, err := svc.ValidateItinerary(ctx, req)
+		if err != nil {
+			return c.Status(500).JSON(fiber.Map{"error": err.Error()})
+		}
+
+		return c.JSON(result)
+	}
+}
+
 func getEnv(key, defaultValue string) string {
 	if val := os.Getenv(key); val != "" {
 		return val