feat(ci): add Drone CI/CD pipeline for frontend

.drone.yml

@@ -0,0 +1,42 @@
+kind: pipeline
+type: docker
+name: frontend-pipeline
+
+platform:
+  os: linux
+  arch: amd64
+
+steps:
+  - name: lint-frontend
+    image: node:20-alpine
+    working_dir: /workspace/frontend
+    commands:
+      - npm ci
+      - npm run lint
+    volumes:
+      - name: node_modules
+        path: /workspace/frontend/node_modules
+
+  - name: build-frontend
+    image: node:20-alpine
+    working_dir: /workspace/frontend
+    commands:
+      - npm ci
+      - npm run build
+    volumes:
+      - name: node_modules
+        path: /workspace/frontend/node_modules
+    depends_on:
+      - lint-frontend
+
+volumes:
+  - name: node_modules
+    temp: {}
+
+trigger:
+  branch:
+    - main
+    - develop
+  event:
+    - push
+    - pull_request