opencode.exe fails with "Unsupported 16-Bit Application" error on Windows 10/11

Description

When trying to run `opencode` after a global installation via npm on Windows, it fails to execute and triggers a Windows system dialog error: "Unsupported 16-Bit Application. The program or feature '...\opencode.exe' cannot start or run due to incompatibility with 64-bit versions of Windows."

It seems the post-install script that should replace the placeholder .exe with the actual binary is either blocked or failing during the setup.
Steps to reproduce the behavior:

1. Run npm i -g opencode-ai (Notice the install-scripts blocked warning during installation).
2. Run opencode in PowerShell or Command Prompt.
3. See the "Unsupported 16-Bit Application" error pop-up.

Plugins

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OpenCode version

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Steps to reproduce

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Operating System

Windows 10 Pro

Terminal

Windows Terminal