[MiniTiago]

Summary

• Make Advanced Trade the default path, with separate guides and reference navigation for Global derivatives, Exchange, International Exchange, Prime, App and Commerce.
• Cover public market data, account access, order management and the WebSocket features supported by each product.
• Add 31 TypeScript examples and eight runnable runtime/framework starters, including public-data browser and Expo configuration.
• Generate references from coinbase-api 1.3.1 and include Coinbase in release inputs, update tracking and site generation.

Validation

• 62 focused local tests pass.
• All 31 Coinbase examples typecheck.
• Starter consistency passes for all 40 projects.
• Vite and React development module resolution checks pass.
• Full CI passes at 6dab82f: all five SDK sites build, and link, asset and public-output checks pass.

The shared navigation changes are reviewed separately in #30 and should land first. This PR keeps the Coinbase-specific navigation separate; its composition with #30 has also been checked.