* fix: remove groups from UserRead model
* fix: add missing system dependencies for postgres
* fix: change vector db provider environment variable name
* fix: WeaviateAdapter retrieve bug
* fix: correctly return data point objects from retrieve method
* fix: align graph object properties
* feat: add node example
* fix: resolve issue with dlt sqlalchemy usage
Cognee database configuration information was not handled properly by dlt, a new dlt handler
moudle was made to handle database configuration propagation.
* fix: resolve issue with jupyter notebook
cognee add function uses old way of working in the notebook, updated it to
work with the latest state of the cognee add function which doesn't return output.
* fix: Remove empty DB_PATH argument from .env.template
Empty value for DB_PATH in the .env file overrides default value for path intended to be used by cognee.
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