fix: TUI spawn: reset BUN_OPTIONS (#3606)

packages/opencode/src/cli/cmd/tui/spawn.ts

@@ -48,6 +48,10 @@ export const TuiSpawnCommand = cmd({
       stdout: "inherit",
       stderr: "inherit",
       stdin: "inherit",
+      env: {
+        ...process.env,
+        BUN_OPTIONS: "",
+      }
     })
     await proc.exited
     await Instance.disposeAll()