Add CD Pipeline

.gitlab-ci.yml

+stages:
+  - build
+  - deploy
+
+build:
+  stage: build
+  image: node:20
+  script:
+    - npm ci
+    - npm run build
+  artifacts:
+    paths:
+      - dist/
+
+deploy:
+  stage: deploy
+  image: docker:latest
+  services:
+    - docker:dind
+  script:
+    - docker cp dist/ hai-nginx-1:/usr/share/nginx/html
+  only:
+    - main
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