add ci readme, add code cov support for badge

.github/README.md

@@ -0,0 +1,13 @@
+# GitHub Action CI/CD
+
+## Testing Locally
+
+Use: **Act**
+Source: <https://www.freecodecamp.org/news/how-to-run-github-actions-locally/>
+
+Running actions:
+
+```sh
+# In Jukebox-Frontend/
+act
+```

.github/workflows/code-linting.yml

@@ -12,6 +12,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+      - name: Node.js Setup
+        uses: actions/setup-node@v3
       - name: Install Packages
         run: npm ci
       - name: Build Vite & TSC
@@ -22,6 +24,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+      - name: Node.js Setup
+        uses: actions/setup-node@v3
       - name: Install Packages
         run: npm ci
       - name: Run Eslint
@@ -32,6 +36,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+      - name: Node.js Setup
+        uses: actions/setup-node@v3
       - name: Install Packages
         run: npm ci
       - name: Run Prettier

.github/workflows/unit-tests.yml

@@ -11,7 +11,14 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+      - name: Node.js Setup
+        uses: actions/setup-node@v3
       - name: Install Packages
         run: npm ci
       - name: Run Tests
         run: npm run test
+      - name: Update Coverage Badge
+        # GitHub actions: default branch variable
+        # https://stackoverflow.com/questions/64781462/github-actions-default-branch-variable
+        if: github.ref == format('refs/heads/{0}', github.event.repository.default_branch)
+        uses: we-cli/coverage-badge-action@main