chore: add github actions for ci and release

Author: chetanraj

.github/workflows/ci.yml

@@ -0,0 +1,30 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  build:
+    name: Build check
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Minify CSS
+        run: npm run build
+
+      - name: Check output exists
+        run: test -f gallo.min.css && echo "✅ gallo.min.css generated successfully"

.github/workflows/release.yml

@@ -0,0 +1,67 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - "v*.*.*"
+
+permissions:
+  contents: write
+
+jobs:
+  release:
+    name: Build, release & publish
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+          registry-url: "https://registry.npmjs.org"
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Minify CSS
+        run: npm run build
+
+      - name: Get version from tag
+        id: version
+        run: echo "VERSION=${GITHUB_REF_NAME#v}" >> $GITHUB_OUTPUT
+
+      - name: Bump package.json version
+        run: npm version ${{ steps.version.outputs.VERSION }} --no-git-tag-version
+
+      - name: Create GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          name: "Gallo ${{ github.ref_name }}"
+          body: |
+            ## Gallo ${{ github.ref_name }}
+
+            ### Install
+            ```html
+            <!-- CDN -->
+            <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@gallocss/gallo@${{ steps.version.outputs.VERSION }}/gallo.min.css">
+            ```
+            ```bash
+            # npm
+            npm install @gallocss/gallo
+            ```
+
+            ### Changelog
+            See [commits since last release](https://github.com/${{ github.repository }}/commits/${{ github.ref_name }}).
+          files: |
+            gallo.css
+            gallo.min.css
+          draft: false
+          prerelease: false
+
+      - name: Publish to npm
+        run: npm publish --access public
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}