Swap MemProbe's ProjectReference from Core.VirtualTags to
Core.Scripting.Abstractions so the heavy-mode globalsType
(ScriptGlobals<VirtualTagContext>) resolves from the post-A0
Roslyn-free assembly.
Measured results (2026-06-07, N=50, Release):
heavy (post-A0): 2.40 / 2.53 MiB/script (was ~18 MiB)
lean: 1.64 / 1.65 MiB/script
=> heavy ≈ lean; both well under the 3 MiB gate. PASS.