chore: 프론트엔드 code pipeline buildspec 작성 (#337)

Co-authored-by: JEON TAEHEON <[email protected]>

frontend/buildspec.yml

@@ -0,0 +1,16 @@
+phases:
+  install:
+    commands:
+      - echo Installing dependencies...
+      - cd frontend
+      - npm install
+  build:
+    commands:
+      - echo Building the project...
+      - npm run build
+
+artifacts:
+  files:
+    - '**/*'
+  base-directory: frontend/dist
+  name: techcourse-project-2024/develup/frontend-deploy