refactor: repo (#1070)

.github/workflows/dev.yml

@@ -15,10 +15,14 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 2.6.8
       - name: Install dependencies
         run: yarn install --pure-lockfile
-      - name: Bundle
-        run: yarn bundle
+      - name: Build
+        run: yarn build
       - name: ESLint
         run: yarn lint
       - name: Test
@@ -35,7 +39,7 @@ jobs:
     - uses: actions/checkout@v2
 
     - name: Copy robots.txt
-      run: cp public/robots.txt.development public/robots.txt
+      run: cp packages/web-server/public/robots.txt.development packages/web-server/public/robots.txt
 
     - name: Publish to Registry
       uses: elgohr/Publish-Docker-Github-Action@master