fix: piping

packages/opencode/src/cli/cmd/tui/app.tsx

@@ -30,6 +30,9 @@ import { TuiEvent } from "./event"
 import { KVProvider, useKV } from "./context/kv"
 
 async function getTerminalBackgroundColor(): Promise<"dark" | "light"> {
+  // can't set raw mode if not a TTY
+  if (!process.stdin.isTTY) return "dark"
+
   return new Promise((resolve) => {
     let timeout: NodeJS.Timeout