Expose Windows package smoke as CMake target

docs/modernization/roadmap.md

@@ -1399,8 +1399,10 @@ readiness matrices aligned. The PowerShell wrapper can also run the retained
 Android native package checks through `-AndroidNativeChecks`, reporting the
 standard `native-lib` build plus Quest/Focus configure checks next to the APK
 blocker matrix. Root CMake now exposes non-default package validation targets
-for package readiness and retained Android native checks:
-`panopainter_package_readiness`, `panopainter_android_standard_native_package`,
+for package readiness, Windows app artifact smoke, and retained Android native
+checks: `panopainter_package_readiness`,
+`panopainter_windows_app_package_smoke`,
+`panopainter_android_standard_native_package`,
 `panopainter_android_vr_native_package_configure`, and
 `panopainter_android_native_package_smoke`. App/package entrypoints still need
 to consume shared targets and remain covered by debt until package validation
@@ -2399,6 +2401,11 @@ Results:
   `cmake --build --preset windows-msvc-default --config Debug --target
   panopainter_android_native_package_smoke` validates the latest SDK-managed
   NDK/CMake pair and reports the still-blocked APK package state.
+- The Windows app artifact package smoke is also reachable from root CMake via
+  `cmake --build --preset windows-msvc-default --config Debug --target
+  panopainter_windows_app_package_smoke`, which builds the CMake `PanoPainter`
+  app target, validates the executable/runtime `data/` copy, and reports the
+  still-blocked Windows AppX package state.
 - Root CMake now exposes platform validation targets for the default headless
   platform-build sweep, the Android standard/Quest/Focus root CMake asset
   component sweep, and the remote Apple compile gate. `cmake --build --preset