Merge remote-tracking branch 'origin/main' into codex/pdf-attach-parity

# Conflicts:
#	locales/ar-SA/opencadstudio.ftl
#	locales/bg-BG/opencadstudio.ftl
#	locales/cs-CZ/opencadstudio.ftl
#	locales/de-DE/opencadstudio.ftl
#	locales/el-GR/opencadstudio.ftl
#	locales/en-US/opencadstudio.ftl
#	locales/es-ES/opencadstudio.ftl
#	locales/fi-FI/opencadstudio.ftl
#	locales/fr-FR/opencadstudio.ftl
#	locales/hi-IN/opencadstudio.ftl
#	locales/hu-HU/opencadstudio.ftl
#	locales/it-IT/opencadstudio.ftl
#	locales/ja-JP/opencadstudio.ftl
#	locales/ko-KR/opencadstudio.ftl
#	locales/nl-NL/opencadstudio.ftl
#	locales/pl-PL/opencadstudio.ftl
#	locales/pt-BR/opencadstudio.ftl
#	locales/ru-RU/opencadstudio.ftl
#	locales/tr-TR/opencadstudio.ftl
#	locales/zh-CN/opencadstudio.ftl
#	locales/zh-TW/opencadstudio.ftl
#	src/app/control/actions.rs
#	src/app/mod.rs
#	src/app/update/mod.rs
#	src/app/view/modal.rs
#	src/io/xref.rs
#	src/ui/window/mod.rs

src/scene/entity.rs

@@ -2884,11 +2884,11 @@ impl Scene {
     /// standard linetypes and a compatible page setup on every paper layout.
     pub fn populate_new_drawing_defaults(&mut self) {
         crate::io::linetypes::populate_document(&mut self.document);
-        // A new drawing is metric, as the reference's ISO template: millimetre
+        // A new drawing is metric, as the reference's new drawing: metre
         // insertion units, metric measurement, and the ISO-25 dimension style
         // current. Standard stays available for imperial work.
         self.document.header.measurement = 1;
-        self.document.header.insertion_units = 4;
+        self.document.header.insertion_units = 6;
         let iso = crate::scene::creation_style::ensure_iso_dim_style(&mut self.document);
         self.document.header.current_dimstyle_name = "ISO-25".to_string();
         // The name alone leaves the header pointing at the previous style, and