PyWeb 0.4.1

Added

• MCP server: pyweb_routes maps every page (route, path and query
  parameters with types and defaults, title and head tags, layouts,
  live-data variables), the layouts, error pages and server functions.
• MCP server: pyweb_packages adds, removes or lists npm packages for
  browser code, with each package's exported names and the npm(...)
  lines to bind them.
• MCP server: add_ai_feature and make_data_live prompts.
• MCP server: pyweb_call returns every chunk a streaming function
  yields; pyweb_render reports the title, head tags and the layouts that
  rendered; pyweb_check reports layouts, live variables, npm packages
  and streaming functions.
• The AI guide (pyweb_guide, AGENTS.md) has sections with working
  examples for multi-page apps, streaming and AI, live data and npm
  packages.
• A new README with screenshots, and docs on publishing the VS Code
  extension.

Fixed

• Markup right after a def line that ends in a comment
  (def Page(q: str = ""): # ...) failed to compile.