fix(ci): build Windows binary natively to fix segfault (#1019)

Bun cross-compilation from Linux to Windows produces binaries that crash
with 'Segmentation fault at address 0xFFFFFFFFFFFFFFFF'.

Root cause: oven-sh/bun#18416

Solution:
- Use windows-latest runner for Windows platform in publish-platform.yml
- Set shell: bash for consistent behavior across runners

This is a simpler fix than PR #938 which modified publish.yml (wrong workflow).
The platform binaries are built and published by publish-platform.yml.

Fixes #873
Fixes #844

Co-authored-by: justsisyphus <justsisyphus@users.noreply.github.com>

.github/workflows/publish-platform.yml

@@ -29,7 +29,12 @@ permissions:
 
 jobs:
   publish-platform:
-    runs-on: ubuntu-latest
+    # Use windows-latest for Windows to avoid cross-compilation segfault (oven-sh/bun#18416)
+    # Fixes: #873, #844
+    runs-on: ${{ matrix.platform == 'windows-x64' && 'windows-latest' || 'ubuntu-latest' }}
+    defaults:
+      run:
+        shell: bash
     strategy:
       fail-fast: false
       max-parallel: 2