docs/language: a page for every keyword and attribute the vocabulary has

Keywords: module uses friend export internal numbers unsafe mut port bind action
reducer registry of as from def open alias component prop view (structure),
shows lasts then loads (scenes), system (ecs), dispatch (control), true false
null (operators). Attributes: @Ref @OneOf @Range @Unit @Asset @Color, @Node /
@Clip / @Material, @Tint @Derived, @Text / @Multiline, @Key, @AppendOnly /
@ByKey, @PerMap / @Chunked, @frame @max, @owns / @creates / @releases,
@deterministic @alloc_ok. Each is in tools/docgen/inventory.json; every fence
that is not marked skip parses (ludicc --fmt). annot-clearcolor's token loses its
quotes, which no reader strips.

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

docs/language/structure/kw-uses.md

@@ -0,0 +1,17 @@
+---
+id: kw-uses
+name: uses
+category: structure
+kind: keyword
+tokens: uses
+sig: module name uses a, b, c
+tip: The modules a module may reach; a reach not on the line is a compile error that names the fix.
+order: 52
+---
+
+<code>uses</code> ends a <code>module</code> line with the modules its files may name. The compiler holds the module to that list and refuses a list that goes round: when adding a module would make a cycle, the question goes through a <code>port</code> the asker declares and the program binds instead.
+
+```ludic
+# doc-check: skip — a module spans files
+module sky uses base, events, clock
+```