chore(ci): add a PR title check workflow (#247)

Co-authored-by: Wojciech Trocki <w.trocki@mongodb.com>

Author: gagik

.github/workflows/check-pr-title.yml

@@ -0,0 +1,29 @@
+name: "Check PR Title"
+on:
+  pull_request:
+    types:
+      [
+        opened,
+        synchronize,
+        reopened,
+        ready_for_review,
+        labeled,
+        unlabeled,
+        converted_to_draft,
+        edited,
+      ]
+
+permissions:
+  pull-requests: read # to read PR title and labels
+
+jobs:
+  check-pr-title:
+    name: Check PR Title
+    runs-on: ubuntu-latest
+    steps:
+      - name: Enforce conventional commit style
+        uses: realm/ci-actions/title-checker@d6cc8f067474759d38e6d24e272027b4c88bc0a9
+        with:
+          regex: '^(build|chore|ci|docs|feat|fix|perf|refactor|revert|style|test|ops){1}(\([\w\-\.]+\))?(!)?: .*'
+          error-hint: 'Invalid PR title. Make sure it follows the conventional commit specification (i.e. "<type>(<optional scope>): <description>") or add the no-title-validation label'
+          ignore-labels: "no-title-validation"

CONTRIBUTING.md

@@ -55,7 +55,7 @@ This project implements a Model Context Protocol (MCP) server for MongoDB and Mo
    npm run inspect
    ```
 
-4. Commit your changes with a descriptive commit message
+4. Commit your changes using [conventional commits](https://www.conventionalcommits.org/en/v1.0.0/) format.
 
 ## Adding tests to the MCP Server