Hono API Development

Route chaining → type-safe RPC → end-to-end types.

<when_to_use>

• Building REST APIs with Hono
• Type-safe RPC with hono/client
• OpenAPI documentation with Zod
• Testing APIs with testClient
• When user mentions "Hono", "RPC", or "OpenAPI"

NOT for: Bun runtime APIs (use bun-dev), other frameworks (Express, Fastify)

</when_to_use>

<version_notes>