BigUpdate 0.5.0

- add Local Render Mermaid
- add page-starе для указания смещения страниц
- add Гиперссылки в документе на списки литературы

md2gost/page_geometry.py

@@ -156,3 +156,38 @@ def ensure_continuous_page_numbers(document) -> None:
                 # Keep continuous: remove start attribute if present
                 if child.get(qn("w:start")) is not None:
                     del child.attrib[qn("w:start")]
+
+
+def set_section_page_start(section, start: int) -> None:
+    """Set w:pgNumType/@w:start so PAGE field begins at ``start`` in this section."""
+    if start < 1:
+        return
+    sect_pr = section._sectPr
+    pg = sect_pr.find(qn("w:pgNumType"))
+    if pg is None:
+        sect_pr.append(create_element("w:pgNumType", {"w:start": str(int(start))}))
+    else:
+        pg.set(qn("w:start"), str(int(start)))
+
+
+def apply_page_number_start(
+    document,
+    start: int | None,
+    *,
+    front_sections: int = 0,
+) -> None:
+    """
+    Apply page-number offset for the body.
+
+    ``start`` is None / <1 — leave continuous numbering (strip explicit starts).
+    ``start`` >= 1 — first section after front matter restarts PAGE at that number;
+    later body sections stay continuous from there.
+    """
+    ensure_continuous_page_numbers(document)
+    if start is None or int(start) < 1:
+        return
+    sections = list(document.sections)
+    idx = max(0, int(front_sections))
+    if idx >= len(sections):
+        return
+    set_section_page_start(sections[idx], int(start))