feat(ci): Github Actions workflow for automated CI.

Author: na2axl

.github/workflows/ci.yml

@@ -0,0 +1,61 @@
+name: CI
+
+on:
+  push:
+    branches: [ "**" ]
+  pull_request:
+    branches: [ "**" ]
+
+jobs:
+  tests:
+    name: PHP Tests and Coverage
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '8.4'
+          coverage: xdebug
+          tools: composer
+          ini-values: |
+            memory_limit=1G
+            error_reporting=E_ALL
+            display_errors=On
+
+      - name: Cache Composer dependencies
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.composer/cache/files
+            vendor
+          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-composer-
+
+      - name: Install dependencies
+        run: composer install --no-interaction --prefer-dist --no-progress
+
+      - name: Run tests with coverage
+        run: |
+          mkdir -p coverage
+          ./vendor/bin/pest --coverage --coverage-clover=coverage/clover.xml
+
+      - name: Upload coverage artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage-php
+          path: coverage/
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v4
+        with:
+          files: coverage/clover.xml
+          flags: php
+          fail_ci_if_error: true
+          verbose: true
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}