Categories for premade starter agents

Premade starter agents are now organized by category. The "Choose a Starter Agent" picker has been redesigned with a search bar and a category filter, so you can narrow down agents by name, description, or category — or combine both to find what you need faster.

Each agent card now shows a color-coded category badge and icon, and agents are grouped by category and sorted alphabetically within each group. Fourteen categories are available at launch, covering areas like ad budget optimization, ad ops, SEO, content creation, and campaign performance monitoring.