[matoous]

API endpoint descriptions can overflow OG cards with later paragraphs and lists. Render only the first paragraph on each card while keeping the full API reference text.

Also:

• Set the site language to en-US and normalize Nimbus's OG locale to en_US.
• Standardize remaining authored prose to US English and document exceptions for code, published URLs, and API/SDK names.
• Remove the dedicated OG image checker, npm command, build hook, and unused HTML metadata extraction.