hs: query targets, prolog hook, loop scripts, new plans, WASM regen

Hyperscript compiler/runtime:
- query target support in set/fire/put commands
- hs-set-prolog-hook! / hs-prolog-hook / hs-prolog in runtime
- runtime log-capture cleanup

Scripts: sx-loops-up/down, sx-hs-e-up/down, sx-primitives-down
Plans: datalog, elixir, elm, go, koka, minikanren, ocaml, hs-bucket-f,
       designs (breakpoint, null-safety, step-limit, tell, cookies, eval,
       plugin-system)
lib/prolog/hs-bridge.sx: initial hook-based bridge draft
lib/common-lisp/tests/runtime.sx: CL runtime tests

WASM: regenerate sx_browser.bc.js from updated hs sources

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

plans/prolog-on-sx.md

@@ -72,7 +72,7 @@ Representation choices (finalise in phase 1, document here):
 - [ ] String/atom predicates
 
 ### Phase 5 — Hyperscript integration
-- [ ] `prolog-query` primitive callable from SX/Hyperscript
+- [x] `prolog-query` primitive callable from SX/Hyperscript — `prolog(db, goal)` hook in runtime
 - [ ] Hyperscript DSL: `when allowed(user, :edit) then …`
 - [ ] Integration suite