[Enhancement]: Resolve Failing Backend Tests

[aybruhm]

Description

This PR addresses the issue of failing backend tests due to improper database (sqlalchemy async engine) initialization. The changes ensure that the database is correctly set up before tests run, preventing the failures.

Changes Made

• Move initialization of async SQLAlchemy engine to the init method: Ensures that the engine is properly configured when the class is instantiated.
• Instantiate DBEngine class to a variable instance: Provides a consistent and reusable database engine instance across the lifecycle of the tests session.

Context

The backend tests were failing because the async engine was not properly initialized. By moving the initialization of the SQLAlchemy engine to the __init__ method and ensuring the DBEngine class is properly instantiated, we ensure that the database connection is correctly established.

Testing

• Ran all backend tests locally to verify that the issue is resolved.
• Confirmed that the tests pass without any failures.
• Checked that the changes do not introduce any new issues.

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Name	Status	Preview	Comments	Updated (UTC)
agenta	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jul 3, 2024 6:10am

[aakrem]

thanks @aybruhm