ci: share one Wine Windows gate script between CI and an optional local gate

scripts/wine-windows-gates.sh owns the whole lane — workspace snapshot,
concurrent Node/wineboot/install provisioning, entrypoint resolution, the
vue link, smoke, and the two concurrent blocking gates — so the ci.yml
windows job shrinks to runner provisioning plus one script call, and
pnpm run check:windows-wine runs the identical script locally. The local
path never mutates the working tree, persists the Wine prefix and the
checksum-verified Windows Node zip under .cache/wine-windows/, and falls
back to the cached zip offline. AGENTS.md ceiling 1680 -> 1695 for the
one-line command entry.

package.json

@@ -40,6 +40,7 @@
     "check:ci:windows-blocking": "tsx scripts/run-gates.ts ci-windows-blocking",
     "check:ci:windows-complete": "tsx scripts/run-gates.ts ci-windows-complete",
     "check:ci:windows-observational": "tsx scripts/run-gates.ts ci-windows-observational",
+    "check:windows-wine": "bash scripts/wine-windows-gates.sh",
     "check:node-compat": "tsx scripts/run-gates.ts node-compat",
     "knip": "knip --treat-config-hints-as-errors",
     "publint": "tsx scripts/publint-all.ts",