Auto Migrate on Nuget restore (or similar)

### Description

As per @IT-VBFK 's suggestion, what about running the migration automatically via a flag?
`` could trigger
a) upgrading the Fallout packages to a newer version
b) run the migrate cli to tackle the migration

This could also be something that goes into an IDE extension similar to the dotnet upgrade tool back in the `dotnet framework` to `dotnet core` days

### Usage Example

_No response_

### Alternative

_No response_

### Could you help with a pull-request?

No

Start by reviewing the NuGet restore flow and the existing migrate CLI entry point; the issue does not name files or tests. Define the scope first, including whether automatic package upgrades, CLI execution, or an IDE extension is intended, then establish tests for the selected behavior.

Written by the indexing model from the issue text.