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## Description
<!-- Provide a clear description of the changes in this PR -->
# Add Support for ChromaDB
## Summary
This PR adds support for ChromaDB as a vector database option in the
Cognee application. ChromaDB is a modern, open-source embedding database
designed for AI applications.
## Changes
- Created a new ChromaDBAdapter implementation for vector database
operations
- Added comprehensive test suite for ChromaDB functionality
- Updated docker-compose.yml to include ChromaDB service
- Modified environment configuration to support ChromaDB settings
- Updated vector engine creation logic to support ChromaDB as an option
## Technical Details
- Implemented `ChromaDBAdapter.py` (347 lines) with full CRUD operations
for vector data
- Created test suite (`test_chromadb.py`) with 171 lines of test
coverage
- Updated vector engine creation process to dynamically select ChromaDB
when configured
- Modified settings router to accommodate new database option
- Updated environment template with ChromaDB configuration options
## Docker Changes
- Added ChromaDB service to docker-compose.yml with appropriate
configuration
This PR enhances Cognee's flexibility by providing an alternative vector
database option, allowing users to choose the most appropriate database
for their specific use case.
## DCO Affirmation
I affirm that all code in every commit of this pull request conforms to
the terms of the Topoteretes Developer Certificate of Origin
Tested with UI + tests.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- **New Features**
- Expanded vector database integration by adding support for Chromadb,
enabling enhanced data management and search functionalities.
- **Tests**
- Added automated tests to validate the Chromadb integration and related
operations.
- **Chores**
- Updated configuration guidance and dependency management to include
Chromadb.
- Provided an optional container deployment template for Chromadb.
- Added a new entry to ignore the `.chromadb_data/` directory in version
control.
- Introduced a new GitHub Actions workflow for testing Chromadb
integration.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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Co-authored-by: hajdul88 <52442977+hajdul88@users.noreply.github.com>
Co-authored-by: Vasilije <8619304+Vasilije1990@users.noreply.github.com>
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