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/deploy/scripts/gitea-runner.service

@@ -0,0 +1,14 @@
+[Unit]
+Description=Gitea Actions Runner
+After=network.target
+
+[Service]
+Type=simple
+User=root
+WorkingDirectory=/opt/gitea-runner
+ExecStart=/usr/local/bin/act_runner daemon --config /opt/gitea-runner/config.yaml
+Restart=always
+RestartSec=10
+
+[Install]
+WantedBy=multi-user.target