chore(repo): enforce conventional commits

.github/workflows/commitlint.yml

@@ -0,0 +1,53 @@
+name: Commit Lint
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+
+jobs:
+  commitlint:
+    name: Validate Commit Messages
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v6
+        with:
+          node-version: "20"
+          cache: "npm"
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Lint commit messages
+        shell: bash
+        run: |
+          if [[ "${{ github.event_name }}" == "pull_request" ]]; then
+            FROM="${{ github.event.pull_request.base.sha }}"
+            TO="${{ github.event.pull_request.head.sha }}"
+          else
+            FROM="${{ github.event.before }}"
+            TO="${{ github.sha }}"
+          fi
+
+          if [[ "$FROM" == "0000000000000000000000000000000000000000" ]]; then
+            npx commitlint --last --verbose
+          else
+            npx commitlint --from "$FROM" --to "$TO" --verbose
+          fi