Convert simple resource-manager spec from "folder structure v1" to "folder structure v2"

[mikeharder]

• search the repo contents and wiki to understand these concepts
• use folder specification/contosowidgetmanager as a gold-standard reference example for v1
• use folder specification/widget as a gold-standard reference example for v2
• create a PR converting a simple resource-manager spec from "folder structure v1" to "folder structure v2"

[copilot-swe-agent]

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