fix: add windowsHide:true to remaining spawn/exec calls to prevent CMD flash on Windows

[markijbema]

Summary

• Add windowsHide: true to all remaining spawn/exec/execFile/execFileSync calls that were missing it, preventing cmd.exe console windows from briefly flashing on Windows.
• Previous fixes in fix: add windowsHide to all spawn calls to prevent CMD window flash on Windows #6813 covered most sites, but several call sites in the SDK, CLI, and desktop-electron packages were missed or regressed.

Changes

File	Fix
packages/sdk/js/src/server.ts	windowsHide: true on createKiloServer and createKiloTui spawns
packages/sdk/js/src/v2/server.ts	Same as above (v2 copy)
packages/opencode/src/kilocode/ts-check.ts	windowsHide: true on Bun.spawn for tsc
packages/opencode/src/cli/cmd/github.ts	windowsHide: true on exec for browser open
packages/desktop-electron/src/main/cli.ts	windowsHide: true on install script spawn and version check
packages/desktop-electron/src/main/ipc.ts	windowsHide: true on execFile for open-path
packages/desktop-electron/src/main/apps.ts	windowsHide: true on execFileSync for wsl/where calls

windowsHide: true is a no-op on non-Windows platforms, so these changes are safe everywhere.

Closes #7896
Supersedes #7899

[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Files Reviewed (4 files)

• packages/opencode/src/cli/cmd/github.ts
• packages/opencode/src/kilocode/ts-check.ts
• packages/sdk/js/src/server.ts
• packages/sdk/js/src/v2/server.ts

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_{Reviewed by gpt-5.4-20260305 · 369,051 tokens}