PyWeb 0.4.2

Added

• VS Code extension: PyWeb: Run App (a run button on .pyweb
  files, Ctrl+F5), New App from any template, Check App, Add
  npm Package, Install or Update PyWeb and Set Up AI Assistant
  (MCP), which adds the PyWeb MCP server to .vscode/mcp.json.
• VS Code extension: closing tags are added as you type, Emmet works in
  markup, new snippets (layout, error, stream, livequery, npm,
  mount), a status item that shows the PyWeb version in use, and an
  icon.

Fixed

• VS Code extension: the language server failed with
  spawn python ENOENT when no Python interpreter was selected. The
  extension now looks for a Python with PyWeb (the selected
  interpreter, pyweb, py, python3, python), offers to install
  PyWeb when it's missing, and restarts when you change interpreter.