Add LitElement recipe search template

[kenproxx]

Summary

• add a new LitElement/Vite recipe search template using TheMealDB public API
• include Codesphere ci.yml, metadata, setup/deployment docs, and responsive web components
• support recipe search by ingredient/name/category plus local favorite recipes

Verification

• npm.cmd install
• npm.cmd run typecheck
• npm.cmd run build
• npm.cmd audit --audit-level=moderate
• git diff --check

Closes #6