fix(win): update wgpu-native to v27, unify Windows/macOS API paths

- fetch_win_deps.sh: update wgpu-native v0.19.4.1 → v27.0.4.0 (same as macOS)
- platform.h: remove v0.19 compat shims, Windows now uses WGPUStringView API
- gpu.cc/gpu.h: remove DEMO_CROSS_COMPILE_WIN32 old-API branches
- texture_readback.cc, visual_debug.cc, hybrid3d_effect.cc: same cleanup
- rotating_cube_effect.cc: remove #ifdef guard for depthSlice
- glfw3webgpu.c: remove old WGPUSurfaceDescriptorFromWindowsHWND branch
- asset_manager.cc: fix DEMO_STRIP_ALL→STRIP_ALL guard (vs_main was missing
  in STRIP_ALL Windows builds because disk-loading path ran on embedded data)
- tracker.cc: skip MP3 assets gracefully in STRIP_ALL builds instead of fatal

handoff(Gemini): Windows .exe now runs under Wine. demo64k.exe renders frames
and progresses through audio timeline. Pre-existing test failures unchanged.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/src/audio/tracker.cc b/src/audio/tracker.cc
index 93c279e..d9beb56 100644
--- a/src/audio/tracker.cc
+++ b/src/audio/tracker.cc
@@ -158,8 +158,9 @@ void tracker_init() {
           }
         } else
 #else
-        FATAL_CHECK(data == nullptr || GetAssetType(aid) != AssetType::MP3,
-                    "MP3 assets not supported in STRIP_ALL builds\n");
+        if (data != nullptr && GetAssetType(aid) == AssetType::MP3) {
+          continue;  // MP3 decoding not available in STRIP_ALL builds
+        }
 #endif
             if (data && size >= sizeof(SpecHeader)) {
           const SpecHeader* header = (const SpecHeader*)data;