scheme: Phase 11 — test.sh + scoreboard

lib/scheme/test.sh — single-process test runner. Loads parser/eval/
runtime + lib/guest/reflective/env.sx once, then for each test
suite loads its file and calls its (*-tests-run!) function. Parses
the {:passed N :failed N ...} dict output and aggregates.

Usage:
  bash lib/scheme/test.sh        # summary
  bash lib/scheme/test.sh -v     # per-suite breakdown

Output: "ok 296/296 scheme-on-sx tests passed (9 suites)"

lib/scheme/scoreboard.md — per-suite passing counts, phase status,
deferred items, reflective-kit consumption ledger.

The scoreboard documents the chisel value of the Scheme port:
three reflective kits unlocked (env.sx — already extracted with
Scheme as third consumer; evaluator.sx + quoting.sx — second-
consumer-ready for extraction whenever a follow-up commit is run).

Loop status: 11 phases done (1, 2, 3, 3.5, 4, 5abc, 6ab, 7, 8, 9,
10, 11). Two deferred (6c hygiene, full call/cc-wind interaction).

296 tests, 1830 LoC of Scheme implementation. Zero substrate fixes
required across the loop.

lib/scheme/test.sh

@@ -0,0 +1,92 @@
+#!/usr/bin/env bash
+# Scheme-on-SX test runner — runs all tests in one sx_server process.
+#
+# Usage:
+#   bash lib/scheme/test.sh          # run all suites
+#   bash lib/scheme/test.sh -v       # verbose (list each suite)
+
+set -uo pipefail
+cd "$(git rev-parse --show-toplevel)"
+
+SX_SERVER="${SX_SERVER:-hosts/ocaml/_build/default/bin/sx_server.exe}"
+if [ ! -x "$SX_SERVER" ]; then
+  SX_SERVER="/root/rose-ash/hosts/ocaml/_build/default/bin/sx_server.exe"
+fi
+if [ ! -x "$SX_SERVER" ]; then
+  echo "ERROR: sx_server.exe not found." >&2
+  exit 1
+fi
+
+VERBOSE="${1:-}"
+
+# Suites: NAME RUNNER-FN PATH
+SUITES=(
+  "parse       scm-tests-run!         lib/scheme/tests/parse.sx"
+  "eval        scm-eval-tests-run!    lib/scheme/tests/eval.sx"
+  "syntax      scm-syn-tests-run!     lib/scheme/tests/syntax.sx"
+  "runtime     scm-rt-tests-run!      lib/scheme/tests/runtime.sx"
+  "control     scm-ctl-tests-run!     lib/scheme/tests/control.sx"
+  "macros      scm-mac-tests-run!     lib/scheme/tests/macros.sx"
+  "reflection  scm-ref-tests-run!     lib/scheme/tests/reflection.sx"
+  "records     scm-rec-tests-run!     lib/scheme/tests/records.sx"
+  "modules     scm-mod-tests-run!     lib/scheme/tests/modules.sx"
+)
+
+TMPFILE=$(mktemp); trap "rm -f $TMPFILE" EXIT
+EPOCH=1
+
+emit_load () { echo "(epoch $EPOCH)"; echo "(load \"$1\")"; EPOCH=$((EPOCH+1)); }
+emit_eval () { echo "(epoch $EPOCH)"; echo "(eval \"$1\")"; EPOCH=$((EPOCH+1)); }
+
+{
+  emit_load "lib/guest/lex.sx"
+  emit_load "lib/guest/reflective/env.sx"
+  emit_load "lib/scheme/parser.sx"
+  emit_load "lib/scheme/eval.sx"
+  emit_load "lib/scheme/runtime.sx"
+  for SUITE in "${SUITES[@]}"; do
+    read -r _NAME _RUNNER FILE <<< "$SUITE"
+    emit_load "$FILE"
+    emit_eval "($_RUNNER)"
+  done
+} > "$TMPFILE"
+
+OUTPUT=$(timeout 180 "$SX_SERVER" < "$TMPFILE" 2>&1 || true)
+
+# Final 9 outputs are the suite results. Parse each "{:passed N :failed N ..}".
+TOTAL_PASS=0
+TOTAL_FAIL=0
+FAILED_SUITES=()
+
+# Walk the output; for each suite, extract the {:passed ...} line.
+# The dict format from sx_server is {:passed N :failed N :total N :fails (...)}.
+LAST_DICT_LINES=$(echo "$OUTPUT" | grep -E '^\{:' || true)
+
+I=0
+while read -r LINE; do
+  [ -z "$LINE" ] && continue
+  P=$(echo "$LINE" | grep -oE ':passed [0-9]+' | awk '{print $2}')
+  F=$(echo "$LINE" | grep -oE ':failed [0-9]+' | awk '{print $2}')
+  [ -z "$P" ] && P=0
+  [ -z "$F" ] && F=0
+  SUITE_INFO="${SUITES[$I]}"
+  SUITE_NAME=$(echo "$SUITE_INFO" | awk '{print $1}')
+  TOTAL_PASS=$((TOTAL_PASS + P))
+  TOTAL_FAIL=$((TOTAL_FAIL + F))
+  if [ "$F" -gt 0 ]; then
+    FAILED_SUITES+=("$SUITE_NAME: $P/$((P+F))")
+    printf 'X %-12s %d/%d\n' "$SUITE_NAME" "$P" "$((P+F))"
+  elif [ "$VERBOSE" = "-v" ]; then
+    printf 'ok %-12s %d passed\n' "$SUITE_NAME" "$P"
+  fi
+  I=$((I+1))
+done <<< "$LAST_DICT_LINES"
+
+TOTAL=$((TOTAL_PASS + TOTAL_FAIL))
+if [ $TOTAL_FAIL -eq 0 ]; then
+  echo "ok $TOTAL_PASS/$TOTAL scheme-on-sx tests passed (${#SUITES[@]} suites)"
+else
+  echo "FAIL $TOTAL_PASS/$TOTAL passed, $TOTAL_FAIL failed:"
+  for S in "${FAILED_SUITES[@]}"; do echo "  $S"; done
+  exit 1
+fi