[windows] ReleaseFast build fails: coff does not support linking multiple objects into one (compile obj <app>-app-code)

Summary

native build on Windows fails at the compile obj <app>-app-code step with:

error: error: coff does not support linking multiple objects into one

Build Summary: 14/18 steps succeeded (1 failed)

It reproduces on a blank template app, so it is not app-specific.

Repro

1. native init tpl --template ts-core (accept defaults)
2. cd tpl
3. native build

The TypeScript core itself compiles fine (native scriptc core compile success, native check clean); only the later native link step fails:

+- compile obj tpl-app-code ReleaseFast native failure error: error: coff does not support linking multiple objects into one

Environment

• OS: Windows 11 Enterprise LTSC 10.0.26200, x64
• Node: v24.21.0
• Zig: 0.16.0 (official zip, on PATH)
• CLI: @native-sdk/cli 0.10.1

Note: on a machine without clang, the build first stops at spawn clang ENOENT in the scriptc stage; setting SCRIPTC_CC=zigcc works around that and leads to the COFF failure above.

Expected

native build produces zig-out/bin/<app>.exe as documented.

Actual

Build fails at 14/18 steps; no binary is produced.