ci: add GitHub Actions workflow for automated linting

Closes #3

Author: RogueTex

.github/workflows/ci.yml

@@ -0,0 +1,31 @@
+name: CI
+
+on:
+  push:
+      branches: [main, master]
+        pull_request:
+            branches: [main, master]
+
+            jobs:
+              lint:
+                  name: Lint & Build Check
+                      runs-on: ubuntu-latest
+
+                          steps:
+                                - name: Checkout
+                                        uses: actions/checkout@v4
+
+                                              - name: Set up Node.js
+                                                      uses: actions/setup-node@v4
+                                                              with:
+                                                                        node-version: '20'
+                                                                                  cache: 'npm'
+
+                                                                                        - name: Install dependencies
+                                                                                                run: npm ci --if-present || npm install
+
+                                                                                                      - name: Lint (if configured)
+                                                                                                              run: npm run lint --if-present || echo 'No lint script configured'
+                                                                                                              
+                                                                                                                    - name: Build check (if configured)
+                                                                                                                            run: npm run build --if-present || echo 'No build script configured'