add workflow & bot

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: "npm"
+    directory: "/" 
+    schedule:
+      interval: "daily"

.github/workflows/coverage.yml

@@ -0,0 +1,30 @@
+name: Code Coverage
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  coverage:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v2
+        with:
+          node-version: '20'
+
+      - name: Install dependencies
+        run: npm install
+
+      - name: Run tests and collect coverage
+        run: |
+          npm run test -- --coverage
+          npx codecov

.github/workflows/disable-deploy-for-new-branches.yml

@@ -37,6 +37,14 @@ jobs:
             git config --global user.name "github-actions"
             git config --global user.email "github-actions@github.com"
             git add vercel.json
-            git commit -m "Disable auto deploy for branch $BRANCH_NAME"
-            git push
+
+            # Check if there are any changes to commit
+            if git diff --cached --quiet; then
+              echo "No changes to commit, skipping git commit."
+            else
+              git commit -m "Disable auto deploy for branch $BRANCH_NAME"
+              git push
+            fi
+          else
+            echo "Branch $BRANCH_NAME already exists in vercel.json, skipping."
           fi