Adds the EquipmentVirtualTagPlan sealed record (VirtualTagId, EquipmentId,
FolderPath, Name, DataType, Expression, DependencyRefs) and the
EquipmentVirtualTags init-only member on Phase7CompositionResult, mirroring
the existing EquipmentTagPlan / EquipmentTags pattern. Type-only: no producer
logic yet. Two new tests cover the default-empty guarantee and the record shape.
Equipment folder DisplayName was the colloquial MachineCode; the live rebuild (artifact
ReadEquipmentNode) + composer now use the UNS level-5 Name segment, matching Area/Line
folders + EquipmentNodeWalker. NodeId stays the logical EquipmentId so browse-path
resolution + ACLs are unaffected.
Adds <summary>, <param>, <typeparam>, and <inheritdoc/> tags to public
members surfaced by commentchecker — resolves 5,847 of 5,869 issues
(99.6%) across three /fixdocs passes.
Joseph Doherty