Function createCodexAppSession

createCodexAppSession(
    options: CodexAppSessionOptions,
): {
    line: (raw: string) => void;
    resolvedModel: () => string | undefined;
    session: StdinSession;
}
Creates the stdin session and stdout line handler for one Codex app-server turn.
Parameters
- options: CodexAppSessionOptions
  Collector, thread, model, effort and working directory of the turn.
Returns {
    line: (raw: string) => void;
    resolvedModel: () => string | undefined;
    session: StdinSession;
}
session for runCommand and line for its onStdoutLine.

Throws
From line: SANDBOX_UNAVAILABLE when the server does not confirm read-only mode, SESSION_INVALID for an unknown thread, PROTOCOL_ERROR on malformed messages, and typed provider errors for failed requests.
- Defined in src/backends/codex/app-server.ts:136