Initial commit: Klammertext source distribution

Curated source subset assembled by klammertext-dev's doc/make_dist.sh: the Klammermachine (mac), the Standard Klammer Set (sks), the commands (com), editor plugins and install guides (doc), a test subset (tst), and lib/bin placeholders. Builds with 'make -C com'.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

sks/link/js/link.js

@@ -0,0 +1,12 @@
+
+function set_link_listeners() {
+    Array.from(document.getElementsByClassName("pagelink")).forEach(
+        function (elt) {
+            elt.addEventListener("click", function(event) {
+                let basename = elt.getAttribute("data-page");
+                let id = elt.getAttribute("data-id");
+                go_to_section(elt, basename, id);
+            });
+        });
+}
+