fix: Use PowerShell Start-Process for Windows background

Git Bash cannot properly execute 'start /b' command. Use
PowerShell Start-Process with -WindowStyle Hidden instead,
which properly detaches the process and returns immediately.

Author: GhostTypes

.github/workflows/e2e-tests.yml

@@ -123,8 +123,8 @@ jobs:
         shell: bash
         run: |
           if [[ "${{ runner.os }}" == "Windows" ]]; then
-            # Windows: Start process without log redirection (Git Bash doesn't handle it well)
-            start /b "" ".\dist\${{ matrix.output }}" --no-printers
+            # Windows: Use PowerShell to start process in background
+            powershell -Command "Start-Process -FilePath '.\dist\${{ matrix.output }}' -ArgumentList '--no-printers' -WindowStyle Hidden"
           else
             # Linux/macOS: Start with full log redirection
             chmod +x dist/${{ matrix.output }}