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/handlers/hyperscript-api.sx

@@ -1,7 +1,6 @@
 ;; _hyperscript playground API handler
 
 (defhandler
-  hs-compile
   :path "/sx/(applications.(hyperscript.(api.compile)))"
   :method :post
   :csrf false