Width and height argtypes, kdesc --argtypes from ref/, txt @define/@left_right/@columns, kdiag --check value validation (from dev d6993110e9b3)

Also: the klammertext argtype (descriptions kept as source), txt table
wrapping and :hpos/:offset, @c between ‹ ›, txt section headings, the
ktext newline-only trim, capitalize(), and the argtype test suite.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

sks/table/table.k

@@ -232,3 +232,10 @@ column.
 
 @@tbl.k spec.figure_id : The caption title for a table @@
 @@tbl.html,tex,txt :: @reference *spec* | Table @ @@
+
+#[
+@@columns.k rows.rest :  A minimal table without a caption, header, or lines @@
+@@columns.html,tex,txt ::
+  @table rows :number false :header false @
+@@
+]#