Both UIs now live side by side. The 18 modern component files come straight
from `git show main:<path>` — recovered, not rewritten, which is possible
because main's tip IS the merge base of this branch. There is no title-bar
among them: that component is win7-only, since the modern skin defers to the
native window frame.
Their imports were rewritten to @core the same way stage 1 did, leaving only
skin-internal relative imports behind. Added skins/shadlike/index.ts exporting
SHAD_ROOTS with the same shape as SEVEN_ROOTS, so main.ts can select a tree
without knowing either skin's internals.
Restored the skin axis in core/platform.ts, deleted in fe028a9 and needed
again by the modern tree: __APP_SKIN on the Window global, APP_SKIN,
IS_WIN7_CHROME, and IS_MAC_CHROME = IS_MAC && !IS_WIN7_CHROME. That last one
is what reserves pl-24 for the macOS traffic lights in the fused hiddenInset
header — and correctly stops reserving it under win7, where titleBarStyle
'hidden' removes the traffic lights entirely.
The tree is not reachable yet; the build is the gate. I checked that the gate
is real rather than assuming it: injecting a type error into an unreferenced
shadlike file does fail `bun run build:ui`, so ngtsc type-checks the whole
program including components nothing imports. Without that check, "the build
passes" would have proven nothing about 18 files no one references.
win7 remains pixel-identical to the pre-refactor baseline.
Co-Authored-By: Claude <noreply@anthropic.com>
