feat: implement OLE2Frame embedded image parsing and exact coordinate rendering

src/viewer2d/dwgParser.ts

@@ -7,8 +7,14 @@
  * History: until 2026-07-10 this module selected between acadrust and
  * @horu2day/pure-cad-parser (?dwgparser= toggle). The old parser was removed
  * after side-by-side validation (PROGRESS.md Phase 15).
+ *
+ * Post-process: fixDwgKoreanText repairs CP949→Latin-1 mojibake common in
+ * older Korean DWGs (see fixDwgKoreanText.ts). Unicode-correct drawings
+ * (e.g. BasicSample) are left unchanged.
  */
 
+import { fixDwgKoreanText } from './fixDwgKoreanText';
+
 export type CadParseResult = {
   version?: string;
   vars?: Record<string, unknown>;
@@ -21,5 +27,5 @@ export type CadParseResult = {
 export async function parseDwgBuffer(bytes: Uint8Array): Promise<CadParseResult> {
   const { initAcadrustParser, parseDwgAcadrust } = await import('./acadrustParser');
   await initAcadrustParser();
-  return parseDwgAcadrust(bytes);
+  return fixDwgKoreanText(parseDwgAcadrust(bytes));
 }