🚀 feat: Integrate Azure Blob Storage for file handling and image uploads

[rubentalstra]

Summary

Docs: LibreChat-AI/librechat.ai#256

This pull request introduces Azure Blob Storage support to the application. The changes include environment configuration updates, dependency additions, service initialization, and CRUD operations for handling files in Azure Blob Storage. The most important changes are summarized below:

Environment Configuration:

• .env.example: Added environment variables for Azure Blob Storage configuration.

Dependency Updates:

• api/package.json: Added dependencies for Azure Blob Storage and identity management (@azure/identity, @azure/storage-blob).

Service Initialization:

• api/server/services/AppService.js: Added initialization for Azure Blob Storage based on the file strategy [1] [2].

Azure Blob Storage CRUD Operations:

• api/server/services/Files/Azure/crud.js: Implemented functions for uploading, retrieving, and deleting files in Azure Blob Storage.
• api/server/services/Files/Azure/images.js: Implemented functions for handling image uploads and processing avatars in Azure Blob Storage.

Strategy Integration:

• api/server/services/Files/strategies.js: Integrated Azure Blob Storage as a file handling strategy [1] [2] [3] [4] [5] [6].

These changes collectively enable the application to utilize Azure Blob Storage for file management, providing an alternative to existing file storage solutions.

Change Type

• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

Testing

Please describe your test process and include instructions so that we can reproduce your test. If there are any important variables for your testing configuration, list them here.

Test Configuration:

Checklist

• My code adheres to this project's style guidelines
• I have performed a self-review of my own code
• I have commented in any complex areas of my code
• I have made pertinent documentation changes
• My changes do not introduce new warnings
• I have written tests demonstrating that my changes are effective or that my feature works
• Local unit tests pass with my changes
• Any changes dependent on mine have been merged and published in downstream modules.
• A pull request for updating the documentation has been submitted.

[rubentalstra]

😏