HS parser: fix number+comparison keyword collision, eval-hs uses hs-compile

Parser: skip unit suffix when next ident is a comparison keyword
(starts, ends, contains, matches, is, does, in, precedes, follows).
Fixes "123 starts with '12'" returning "123starts" instead of true.

eval-hs: use hs-compile directly instead of hs-to-sx-from-source with
"return " prefix, which was causing the parser to consume the comparison
as a string suffix.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

sx/sx/nav-tree.sx

@@ -124,6 +124,10 @@
             :label "Native Browser")
           (dict :href "/sx/(applications.(sxtp))" :label "SXTP Protocol")
           (dict :href "/sx/(applications.(pretext))" :label "Pretext")
+          (dict
+            :href "/sx/(applications.(htmx))"
+            :label "htmx"
+            :children htmx-nav-items)
           (dict
             :href "/sx/(applications.(hyperscript))"
             :label "_hyperscript"