Request ids and access logs for Tetsu

Graceful shutdown for Tetsu: drain requests, then close what the server used

Security headers for every Tetsu response: HSTS, CSP, frame and referrer policies

Server-sent events and streamed responses for Tetsu, from an async generator

Fixed-window rate limiting for Tetsu, with a replaceable store

An HTTP framework for Bun: controllers as plain classes, lifecycle hooks and end-to-end type inference, without decorators or dependencies

CORS headers and preflight responses for Tetsu

TypeBox schemas as Tetsu DTOs: compiled validation, type inference and OpenAPI

An OpenAPI 3.1 document and docs page generated from Tetsu routes