refactor(server): replace Bun serve with Hono node adapters (#18335)

Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>
Co-authored-by: Luke Parker <10430890+Hona@users.noreply.github.com>
Co-authored-by: Adam <2363879+adamdotdevin@users.noreply.github.com>
Co-authored-by: Brendan Allan <git@brendonovich.dev>

packages/opencode/src/pty/pty.ts

@@ -0,0 +1,25 @@
+export type Disp = {
+  dispose(): void
+}
+
+export type Exit = {
+  exitCode: number
+  signal?: number | string
+}
+
+export type Opts = {
+  name: string
+  cols?: number
+  rows?: number
+  cwd?: string
+  env?: Record<string, string>
+}
+
+export type Proc = {
+  pid: number
+  onData(listener: (data: string) => void): Disp
+  onExit(listener: (event: Exit) => void): Disp
+  write(data: string): void
+  resize(cols: number, rows: number): void
+  kill(signal?: string): void
+}