fix(electron): hide Windows background consoles (#16842)

Co-authored-by: Brendan Allan <git@brendonovich.dev>

packages/opencode/src/session/prompt.ts

@@ -1629,6 +1629,7 @@ NOTE: At any point in time through this workflow you should feel free to ask the
     const proc = spawn(shell, args, {
       cwd,
       detached: process.platform !== "win32",
+      windowsHide: process.platform === "win32",
       stdio: ["ignore", "pipe", "pipe"],
       env: {
         ...process.env,