feat(backend): basic login and scylladb setup

.gitlab/issue_templates/bug_report_template.md

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+## Bug report
+
+## Summary
+
+[Provide a brief description of the bug.]
+
+## Expected Behavior vs Actual Behavior
+
+[Describe what you expected to happen and what actually happened.]
+
+## Steps to Reproduce
+
+[Outline the steps that lead to the bug's occurrence. Be specific and provide a clear sequence of actions.]
+
+## Related Issues
+
+[Paste links to any related issues or feature requests.]

.gitlab/issue_templates/documentation_update_template.md

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+## Documentation Section
+
+[Specify the section or page of the documentation that needs updating]
+
+## Current Information
+
+[Provide the current information in the documentation that needs to be updated]
+
+## Proposed Update
+
+[Describe the proposed update or correction. Be specific about the changes that need to be made]
+
+## Reason for Update
+
+[Explain the reason for the documentation update. Include any recent changes, new features, or corrections that necessitate the update]
+
+## Additional Context
+
+[Include any additional context or information that can help the documentation team understand the update better]
+
+## Attachments
+
+[Attach any files, screenshots, or references that can assist in making the documentation update]
+
+## Priority
+
+[Assign a priority level to the documentation update based on its urgency. Use a scale such as Low, Medium, High]

.gitlab/issue_templates/feature_request_template.md

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+## Feature Summary
+
+[Provide a brief and clear summary of the new feature you are requesting]
+
+## Problem Description
+
+[Explain the problem or need that this feature aims to address. Be specific about the issues or gaps in the current functionality]
+
+## Use Case
+
+[Describe a real-world scenario or use case where this feature would be beneficial. Explain how it would improve the user experience or workflow]
+
+## Proposed Solution
+
+[If you have a specific solution in mind, describe it here. Explain how it would work and how it would address the problem described above]
+
+## Benefits
+
+[Explain the benefits and advantages of implementing this feature. Highlight how it adds value to the product or improves user satisfaction]
+
+## Alternatives Considered
+
+[If you've considered alternative solutions or workarounds, mention them here. Explain why the proposed feature is the preferred option]
+
+## Impact on Existing Functionality
+
+[Discuss how the new feature might impact or interact with existing features. Address any potential conflicts or dependencies]
+
+## Priority
+
+[Assign a priority level to the feature request based on its importance. Use a scale such as Low, Medium, High]
+
+## Attachments
+
+[Include any relevant attachments, such as sketches, diagrams, or references that can help the development team understand your feature request better]
+
+## Additional Information
+
+[Provide any additional information that might be relevant to the feature request, such as user feedback, market trends, or similar features in other products]
+