[WIP] Include namespace in generated source filename

[Copilot]

Thanks for asking me to work on this. I will get started on it and keep this PR's description up to date as I form a plan and make progress.

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This section details on the original issue you should resolve

<issue_title>Include namespace as part of the generated source filename</issue_title>
<issue_description>When a project contains the same view name in multiple namespaces:

• MyNamespace1.WelcomeWizardPage
• MyNamespace2.WelcomeWizardPage

The source generator throws an exception since it only uses the class name for the filename.

Include the namespace into the generated file. If the file becomes too long, use a shorter hash version of the namespace prefix instead.

Cover the scenario with unit tests and apply this logic to all source generators (in other words: shared logic file that contains this behavior).</issue_description>

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