Setup an integration Environment for the backend (OBS)E5

### Setup an integration environment for the backend (OBS)

**Description**:
Establish an integration environment for the Online Banking Service (OBS) backend. This environment will allow for testing and integration of various backend components before they are deployed to production. The setup should include necessary configurations, dependencies, and databases required for the OBS.

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**Requirements**:
- Configure a separate instance of the backend that mimics production settings.
- Integrate with existing services and databases as needed for testing.
- Ensure that the environment is isolated to avoid conflicts with other services.

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**Acceptance Criteria**:
- The integration environment is set up and operational.
- All necessary services are accessible and functioning as intended.
- Documentation on how to access and use the environment is provided.

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**Estimate**: 5