Type: mojikumi — Line-end Punctuation Half Width for Japanese punctuation

Japanese full-width punctuation is half a mark and half a space (an
opening bracket's space before it; a closing bracket's, comma's or full
stop's after it). Set solid, 」「 or 。」 show a full em of air between
the marks, and a line ending in 。 stops half an em short of the edge.

- `ParaStyle.mojikumi` (Paragraph panel › Mojikumi): None, or Line-end
  Punctuation Half Width, which (JLREQ 3.1.4) lets consecutive
  punctuation share one half-em space — a closing mark followed by
  punctuation loses the space after it, an opening bracket after another
  the space before it — and sets a closing mark ending a line half
  width. Only full-width marks (advance an em) are touched, never inside
  a tate-chu-yoko block; vertical type the same way down the column.
- New type (`text.create`, Area/Path Type) takes Line-end Punctuation
  Half Width, the usual default of Japanese layout; documents from
  before it and imported text keep None (written only when set, so
  older files and older apps are unaffected). `text.setFormat
  {mojikumi: "none"|"lineEndHalf"}`.
- Builds on #344: on justified lines the room it frees is spread
  between the characters.
- Catalog rows in ja and zh-hant.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

crates/engine/src/cmd/create.rs

@@ -402,6 +402,8 @@ fn text_create(s: &mut Session, p: &Value) -> Result<Value> {
     let text = str_param(p, "text").unwrap_or("");
     let mut t = TextObject::point(Point::new(x, y), text, new_type_style(s, p));
     t.vertical = p.get("vertical").and_then(Value::as_bool).unwrap_or(false);
+    // New type is composed the Japanese way (punctuation spacing), as the Type tools set it.
+    t.para.mojikumi = vectorcraft_doc::Mojikumi::LineEndHalf;
     if let Some(a) = p.get("area") {
         let w = f64_or(a, "width", 200.0);
         let h = f64_or(a, "height", 100.0);