feat: add unit tests and GitHub Actions workflow for PR testing

[luboszima]

I recently started using Lubelog and have been impressed with the project. I noticed a few areas for improvement and would love to contribute to the development of this service.

As a first step, I thought it would be valuable to add some basic unit tests to establish a foundation before submitting additional PRs. This should help ensure code quality and make future contributions more reliable.

[luboszima]

@hargata can you enable to run Github Actions for this repository automatically without approval?

[Copilot]

Pull Request Overview

This PR establishes a foundation for testing in the CarCareTracker application by adding comprehensive unit tests and GitHub Actions CI workflow for automated testing on PRs.

• Adds unit tests for core business logic classes (UserLogic, VehicleLogic, OdometerLogic, LoginLogic) with comprehensive coverage
• Creates a new test project with proper dependencies and project structure
• Implements GitHub Actions workflow to run tests automatically on pushes and pull requests

Reviewed Changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
Tests/README.md	Documentation for test structure, dependencies, and usage patterns
Tests/Logic/*.cs	Unit test files covering business logic classes with mocking
Tests/CarCareTracker.Tests.csproj	Test project configuration with necessary dependencies
CarCareTracker.sln	Solution file updated to include test project
CarCareTracker.csproj	Main project configuration excluding test files from build
.github/workflows/test.yml	GitHub Actions workflow for automated testing

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[jbcpollak]

@hargata can you enable to run Github Actions for this repository automatically without approval?

I love the idea of this PR and more testing but I wanted to chime in and say I don't think this is a decision to take lightly. In itself it isn't a security risk but it opens the door to a lot potential future problems, for example accidentally using a malicious or compromised Action in a workflow, etc.

[luboszima]

@hargata can you enable to run Github Actions for this repository automatically without approval?

I love the idea of this PR and more testing but I wanted to chime in and say I don't think this is a decision to take lightly. In itself it isn't a security risk but it opens the door to a lot potential future problems, for example accidentally using a malicious or compromised Action in a workflow, etc.

Ok, I understand, then let's keep it as a manual trigger for reviewer.

[iamdabe]

This would be great addition - echos my sentiments too. great work on the pr @luboszima

[luboszima]

@iamdabe Thank you! I hope with more features people will update Tests too 🙏🏻

@jbcpollak I started working on other PRs. This feature branch is the "base" for another PR: #1034

So if someone checks #1034 first, don't be scared by the amount of changes. After this PR #1031 with unit tests is merged, the other PR will shrink in the number of real changes.