//! DWG stream writers for bit-level binary output
//!
//! These writers handle the low-level bit manipulation required by
//! the DWG format, including variable-length encodings and the
//! triple-stream (main/text/handle) object record architecture.
//!
//! ## Section writers (Sprint 3)
//!
//! Higher-level writers that produce complete DWG sections:
//! - `preview_writer` — empty preview/thumbnail section
//! - `app_info_writer` — application information section
//! - `aux_header_writer` — auxiliary header (version, timestamps, HANDSEED)
//! - `classes_writer` — DXF class definitions section
//! - `handle_writer` — handle-to-offset mapping section
//! - `header_writer` — header variables section (~200 fields)
pub use DwgBitWriter;
pub use DwgMergedWriter;
pub use DwgObjectWriter;