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/learning/course_autogen_test.go

@@ -0,0 +1,79 @@
+package learning
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"testing"
+	"time"
+
+	"github.com/gooseek/backend/internal/llm"
+)
+
+func TestSanitizeSlug(t *testing.T) {
+	got := sanitizeSlug("  Go Backend: Production _ Course  ")
+	if got != "go-backend-production-course" {
+		t.Fatalf("sanitizeSlug result mismatch: %q", got)
+	}
+}
+
+func TestNormalizeDifficulty(t *testing.T) {
+	if normalizeDifficulty("advanced") != "advanced" {
+		t.Fatalf("expected advanced difficulty")
+	}
+	if normalizeDifficulty("unknown") != "intermediate" {
+		t.Fatalf("expected fallback to intermediate")
+	}
+}
+
+func TestValidateCourseArtifacts(t *testing.T) {
+	outline := json.RawMessage(`{
+	  "modules": [
+	    {"index":0,"title":"m1","description":"d","skills":["a"],"estimated_hours":4,"practice_focus":"p"},
+	    {"index":1,"title":"m2","description":"d","skills":["a"],"estimated_hours":4,"practice_focus":"p"},
+	    {"index":2,"title":"m3","description":"d","skills":["a"],"estimated_hours":4,"practice_focus":"p"},
+	    {"index":3,"title":"m4","description":"d","skills":["a"],"estimated_hours":4,"practice_focus":"p"},
+	    {"index":4,"title":"m5","description":"d","skills":["a"],"estimated_hours":4,"practice_focus":"p"},
+	    {"index":5,"title":"m6","description":"d","skills":["a"],"estimated_hours":4,"practice_focus":"p"},
+	    {"index":6,"title":"m7","description":"d","skills":["a"],"estimated_hours":4,"practice_focus":"p"},
+	    {"index":7,"title":"m8","description":"d","skills":["a"],"estimated_hours":4,"practice_focus":"p"}
+	  ]
+	}`)
+	landing := json.RawMessage(`{
+	  "hero_title":"Hero",
+	  "hero_subtitle":"Subtitle",
+	  "benefits":["b1","b2","b3"],
+	  "outcomes":["o1","o2"],
+	  "salary_range":"200k",
+	  "faq":[{"question":"q","answer":"a"}]
+	}`)
+
+	err := validateCourseArtifacts("Course", "Это достаточно длинное описание для валидации курса в тесте.", outline, landing)
+	if err != nil {
+		t.Fatalf("validateCourseArtifacts unexpected error: %v", err)
+	}
+}
+
+func TestGenerateTextWithRetry(t *testing.T) {
+	attempt := 0
+	client := &mockLLMClient{
+		generateFunc: func(ctx context.Context, req llm.StreamRequest) (string, error) {
+			attempt++
+			if attempt < 3 {
+				return "", errors.New("temporary")
+			}
+			return "ok", nil
+		},
+	}
+
+	got, err := generateTextWithRetry(context.Background(), client, llm.StreamRequest{}, 3, time.Millisecond)
+	if err != nil {
+		t.Fatalf("generateTextWithRetry error: %v", err)
+	}
+	if got != "ok" {
+		t.Fatalf("unexpected result: %q", got)
+	}
+	if attempt != 3 {
+		t.Fatalf("expected 3 attempts, got %d", attempt)
+	}
+}