enhance: add playwright installation step to environment setup scripts

[vcfgv]

📝 Pull Request Template

1. Related Issue

Closes # (issue number)

Type of Change (select one)

Enhancement

3. Description

playwright initialization is required by crawl4ai

4. Testing

• I have tested this locally.
• I have updated or added relevant tests.

5. Checklist

• I have read the Code of Conduct
• I have followed the Contributing Guidelines
• My changes follow the project's coding style

[DigHuang]

Consider to refactor run backend in cmd into pws, we not support select anymore

Write-Info "Launching in CMD for better interactive terminal support..."

# Use cmd.exe for better interactive support with questionary
# CMD handles ANSI escape sequences and arrow keys better than PowerShell
$launchCmd = "cd /d `"$PY_DIR`" && uv run --with questionary --with colorama scripts/launch.py"
Start-Process "cmd.exe" -ArgumentList "/k", $launchCmd -Wait

[vcfgv]

Consider to refactor run backend in cmd into pws, we not support select anymore

Write-Info "Launching in CMD for better interactive terminal support..."

# Use cmd.exe for better interactive support with questionary
# CMD handles ANSI escape sequences and arrow keys better than PowerShell
$launchCmd = "cd /d `"$PY_DIR`" && uv run --with questionary --with colorama scripts/launch.py"
Start-Process "cmd.exe" -ArgumentList "/k", $launchCmd -Wait

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