Function spawn_session_with_prompts 

pub fn spawn_session_with_prompts(
    theme: InlineTheme,
    placeholder: Option<String>,
    surface_preference: UiSurfacePreference,
    inline_rows: u16,
    event_callback: Option<InlineEventCallback>,
    active_pty_sessions: Option<Arc<AtomicUsize>>,
    keyboard_protocol: KeyboardProtocolConfig,
    workspace_root: Option<PathBuf>,
    slash_commands: Vec<SlashCommandItem>,
) -> Result<InlineSession>

Spawn session with optional custom prompts pre-loaded