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Author	SHA1	Message	Date
Don Simpson	65d99f7f8a	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.	2026-01-15 18:48:49 -05:00
Don Simpson	976a20496d	feat: Add Amazon Neptune Database Graph Store Support ... - Implement NeptuneAuthTokenManager extending Neo4j AuthManager for IAM SigV4 signing - Add automatic token refresh and security exception handling - Add retry logic with backoff for transient errors (signature expired, connection closed) - Add connection recovery with driver recreation - Add NeptuneDriver, NeptuneSession, NeptuneTransaction wrapper classes - Use native Neptune ~id via id() function for all CRUD operations - Add graph-amazon-neptune optional dependency group (boto3, neo4j) - Update cookbook with Amazon Neptune Graph Store examples - Add comprehensive tests (61 tests covering all GraphStore interface methods) Closes #151	2026-01-08 20:13:28 -05:00