Add Figma plugin integration

What feature would you like to be added or updated?

Add a Figma plugin that allows trae-agent to directly read and parse Figma design files. It should support extracting layers, components, styles, and design tokens (colors, typography, spacing), as well as generating or updating frontend code from Figma designs.

Why do you need this feature?

Figma is one of the most widely used design tools, and many teams rely on it for design-to-development collaboration. The current workflow from Figma designs to code involves a lot of manual work — exporting assets, manually recreating styles, etc. — which is slow and error-prone. A native Figma integration in trae-agent would significantly streamline the design-to-code pipeline and be extremely valuable for design and engineering teams.

Additional information that you believe is relevant to this feature request

There is currently no Figma-related plugin in the plugin list. Figma provides both a REST API and a Plugin API, so this should be technically feasible. Many competing tools already offer similar Figma integrations — it would be great to see trae-agent support this as well.