Phase 6b: annotation DSL (@Queries, @Handles) + docs prose pass

@Queries(these: [Prop{constraint}, ...], on: Model) on a handler desugars to the
existing S_QUERY loop: each property binds by its own name, a Prop{...} block
qualifies its bare fields to that property, and on: adds a {Model} tag filter.
Implemented via parse_queries_anno + qualify_fields (parse_game.ludic), wired
into parse_one_decl; @Handles parses on the program (documentation).
examples/annotations.ludic demonstrates it (output 3 1 0 0); test.sh 15/15.

Docs: added the Annotations section to LANGUAGE.md and did the vocabulary prose
pass (component->property, archetype->model, system->handler, game->program)
across the docs. check-docs + test-tools green.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

test.sh

@@ -50,6 +50,11 @@ qsmoke() {  # name
   else bad "$n: $(tail -1 /tmp/qs.out)"; fi
 }
 qsmoke qdecl
+# @Queries desugars to a query loop; @Handles parses. Check the desugared behavior.
+if ./selfhost/game-build.sh build/ludicc examples/annotations.ludic "/tmp/ludic_ann" >/tmp/ann.out 2>&1 \
+   && [ "$(/tmp/ludic_ann | tr '\n' ' ')" = "3 1 0 0 " ]; then
+  ok "annotations.ludic (@Queries desugars to a query, @Handles parses)"
+else bad "annotations: $(tail -1 /tmp/ann.out)"; fi
 # --- Toolchain-agent CLI smoke tests append below this line ---
 echo "== self-hosted front-end binaries (ludicc / ludic) =="
 # The two commands are one multi-call native binary built from the seed with