Auto-Generate AI News Commentary with Dumpling AI and GPT-4o

### ✍️ Scrape Articles, Clean Text, Generate Commentary, and Append

Each article is split out and scraped using Dumpling AI’s `/scrape` endpoint to get full content. The aggregated content is cleaned via a Code node, removing links and excess formatting. GPT-4o generates a LinkedIn-style first-person commentary using this cleaned content. The final output is saved back to the Google Sheet under the “generated commentary” field.