feat(vscode): Add function to create and update solution file with Logic App .csproj

[samikay101]

Work Item Links

• Feature Work Item
• Bug Fix Work Item

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Type of Change

• Feature
• Bug Fix

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Current Behavior

Feature Context:

Currently, there is no automated way to create a solution file (.sln) and add the Logic App .csproj file within the test directory. Users have to manually create a solution file and register the project.

Bug Context:

When a user creates a unit test in a multi-project setup, the incorrect project may be selected, leading to invalid workflow creation.

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New Behavior & Fixes

Feature Enhancement:

This PR introduces the updateSolutionWithProject function, which automates the following steps:

1. Creates a new solution file (Tests.sln) if one does not already exist in the test directory.
2. Computes the relative path of the Logic App .csproj file from the test directory.
3. Adds the .csproj file to the solution using dotnet sln add.

This enhancement ensures seamless project setup for Logic App solutions.

Bug Fix:

Expected Behavior:

• If the wrong project is selected, no workflow should be created, and an error should be displayed to the user.

Actual Behavior:

• A workflow is incorrectly generated with wrong fields and incorrect folder placements, leading to invalid configurations and potential failures.

Repro Steps:

1. Open the multi-project environment.
2. Attempt to create a unit test.
3. Select an incorrect project during the process.
4. Observe that a workflow is still created but with incorrect fields and incorrect folder locations.

Proposed Fix:

• Implement validation to ensure the correct project is selected before allowing workflow creation.
• If an incorrect project is chosen, halt workflow generation and display a clear error message.
• Validate folder placement logic to prevent incorrect structure generation.

Acceptance Criteria:

• If an incorrect project is selected, the system should not create a workflow.
• A clear error message should inform the user that the project selection is invalid.
• Workflows should only be created in the correct project folder with the expected fields.

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Impact of Change

• This is a breaking change.
  (No breaking changes; this is a feature addition and bug fix.)

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Test Plan

• Unit tests added to apps/vs-code-designer/src/app/commands/workflows/unitTest/test/saveBlankUnitTest.test.ts
• Unit test added to apps/vs-code-designer/src/app/utils/test/UnitTesting/unitTestUtils.test.ts

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Screenshots or Videos (if applicable)

*(Attach any relevant screenshots or recordings showing the fix in action.)