Plan-1 Task-4 added { type:'components-foundation', pattern:
'src/components/Icon.vue' } without mode:'file'. eslint-plugin-boundaries
defaults to folder mode, so the single-file pattern never matched and
Icon.vue fell through to the generic `components` catch-all — breaking
the sanctioned components-v2 -> Icon bridge (RFC AD-G5) for every v2
shell component. Plan-1's boundary test only exercised the forms/**
folder-glob edge so the gap was latent. Adds mode:'file' + a regression
test locking the components-v2 -> Icon.vue edge.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>