Added CloudFormation template that creates a dev cluster with a single [t3 instance](https://docs.aws.amazon.com/neptune/latest/userguide/manage-console-instances-t3.html) configured with a [public endpoint](https://docs.aws.amazon.com/neptune/latest/userguide/neptune-public-endpoints.html) and IAM Auth enabled (required for public endpoint), and creates an IAM User using least-privilege principles. See Get started with Neptune Database for free on the [Amazon Neptune pricing page](https://aws.amazon.com/neptune/pricing/).

Includes the CloudFormation template in the same directory as the [Amazon Neptune Cookbook](https://github.com/Hawksight-AI/semantica/blob/main/cookbook/introduction/21_Amazon_Neptune_Store.ipynb) and references it as a prerequisite in the cookbook.

.pre-commit-config.yaml

@@ -5,6 +5,7 @@ repos:
       - id: trailing-whitespace
       - id: end-of-file-fixer
       - id: check-yaml
+        exclude: 'neptune-setup\.yaml$'
       - id: check-json
       - id: check-toml
       - id: check-added-large-files
@@ -49,9 +50,15 @@ repos:
     hooks:
       - id: yamllint
         args: ['-d', '{extends: default, rules: {line-length: {max: 120}}}']
+        exclude: 'neptune-setup\.yaml$'
+
+  - repo: https://github.com/aws-cloudformation/cfn-lint
+    rev: v1.43.3
+    hooks:
+      - id: cfn-lint
+        files: 'neptune-setup\.yaml$'
 
   # Removed slow hooks for faster development:
   # - mypy: Type checking (can be run manually or in CI)
   # - bandit: Security scanning (can be run separately)
   # - pytest: Testing (should be run manually, not on every commit)
-