refactor(server): simplify router middleware with next() (#21720)

packages/opencode/src/server/adapter.ts

@@ -0,0 +1,21 @@
+import type { Hono } from "hono"
+import type { UpgradeWebSocket } from "hono/ws"
+
+export type Opts = {
+  port: number
+  hostname: string
+}
+
+export type Listener = {
+  port: number
+  stop: (close?: boolean) => Promise<void>
+}
+
+export interface Runtime {
+  upgradeWebSocket: UpgradeWebSocket
+  listen(opts: Opts): Promise<Listener>
+}
+
+export interface Adapter {
+  create(app: Hono): Runtime
+}