Get the full intelligence profile for a brand by its URL slug.
Args:
slug: URL-safe brand identifier (e.g. "pacvue", "hubspot", "snowflake").
Use search_brands to discover slugs if unsure.
Returns:
Full brand profile including company overview (3 paragraphs), signal summary,
structured FAQs, vertical, tier/rank, website, tags, and source URL.
Returns an error dict if the brand is not found.
Connector