ci(commits): Enforce conventionalcommit format

Author: the-chris-mitchell

.commitlintrc.json

@@ -0,0 +1,3 @@
+{
+  "extends": ["@commitlint/config-conventional"]
+}

.github/workflows/pr-linting.yml

@@ -13,4 +13,23 @@ jobs:
         uses: actions/checkout@v4
 
       - name: MegaLinter
-        uses: oxsecurity/megalinter/flavors/documentation@v9
+        uses: oxsecurity/megalinter/flavors/documentation@v9
+
+  commitlint:
+    runs-on: ubuntu-latest
+    name: Conventional Commit Validation
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Setup node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+
+      - name: Validate PR commits with commitlint
+        run: |
+          npm install --no-save @commitlint/cli @commitlint/config-conventional
+          npx commitlint --from ${{ github.event.pull_request.base.sha }} --to ${{ github.event.pull_request.head.sha }} --verbose