Add scraper for rickbayless.com

[joeygerovac]

Add scraper for rickbayless.com

Adds support for scraping recipes from rickbayless.com.

Site structure

Rick Bayless's site uses custom HTML markup with no JSON-LD structured
data, requiring a dedicated scraper. Recipe data is stored in semantic
class names:

• Title: <h1> inside div.page-header
• Description: div.recipe-description
• Ingredients: <li itemprop="ingredients"> with separate spans for
  quantity/unit, name, and preparation notes
• Instructions: <p> tags inside div.recipe-instructions

Testing

Tested against multiple recipes including:

• Simple recipes (classic guacamole)
• Recipes with quantity-less ingredients ("Salt")
• Recipes with linked ingredient names (anchor tags)
• Single and multi-paragraph instruction sets
• Recipes with and without serving size data

All 1030 tests pass.

Edge cases handled

• Ingredients with no quantity parse correctly
• Anchor tags within ingredient names are stripped to plain text
• yields() returns None when serving size div is empty
• image() falls back gracefully when no og:image tag exists