chore: add github checks

.github/workflows/pr-github-checks.yml

@@ -0,0 +1,61 @@
+name: PR Github Checks
+
+on:
+  pull_request_target:
+    branches:
+      - "main"
+      - "release-*"
+    types:
+      - opened
+      - reopened
+      - edited
+      - synchronize
+      - labeled
+  workflow_dispatch:
+
+jobs:
+  pr-label-check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check for area label
+        if: always()
+        run: |
+          gh api --jq '.labels.[].name' /repos/${{ github.repository }}/pulls/${{ github.event.number }} | \
+          grep -q '^area/' || (echo "area label missing"; exit 1)
+        env:
+          GH_TOKEN: ${{ github.token }}
+
+      - name: Check for kind label
+        if: always()
+        run: |
+          gh api --jq '.labels.[].name' /repos/${{ github.repository }}/pulls/${{ github.event.number }} | \
+          grep -q '^kind/' || (echo "kind label missing"; exit 1)
+        env:
+          GH_TOKEN: ${{ github.token }}
+
+      - name: Check if kind label matches pr title prefix
+        run: |
+          kind_label=$( gh api --jq '.labels.[].name' /repos/${{ github.repository }}/pulls/${{ github.event.number }} | grep '^kind/')
+          kind_label_to_pr_title_prefix='{"kind/bug":"fix","kind/feature":"feat","kind/docs":"docs","kind/chore":"chore","kind/flaky-test":"test","kind/missing-test":"test","kind/failing-test":"test","kind/deps":"deps"}'
+          prefix=$(echo $kind_label_to_pr_title_prefix | jq -r ".\"$kind_label\"")
+          echo "${{ github.event.pull_request.title }}" | grep '^'$prefix || (echo "PR title should start with $prefix"; exit 1)
+        env:
+          GH_TOKEN: ${{ github.token }}
+
+  pr-title-check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Validate title
+        uses: amannn/action-semantic-pull-request@47b15d52c5c30e94a17ec87eb8dd51ff5221fed9
+        env:
+          GITHUB_TOKEN: ${{ github.token }}
+        with:
+          types: |
+            deps
+            chore
+            docs
+            feat
+            fix
+            test
+          requireScope: false
+          subjectPattern: ^([A-Z].*[^.]|bump .*)$