prolog-query SX API: pl-load + pl-query-all + pl-query-one + pl-query (+16 tests)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

lib/prolog/conformance.sh

@@ -30,12 +30,14 @@ SUITES=(
   "nqueens:lib/prolog/tests/programs/nqueens.sx:pl-nqueens-tests-run!"
   "family:lib/prolog/tests/programs/family.sx:pl-family-tests-run!"
   "atoms:lib/prolog/tests/atoms.sx:pl-atom-tests-run!"
+  "query_api:lib/prolog/tests/query_api.sx:pl-query-api-tests-run!"
 )
 
 SCRIPT='(epoch 1)
 (load "lib/prolog/tokenizer.sx")
 (load "lib/prolog/parser.sx")
-(load "lib/prolog/runtime.sx")'
+(load "lib/prolog/runtime.sx")
+(load "lib/prolog/query.sx")'
 for entry in "${SUITES[@]}"; do
   IFS=: read -r _ file _ <<< "$entry"
   SCRIPT+=$'\n(load "'"$file"$'")'