research: prepare prod book universe x horizon 4-arm matrix

Pre-register A-D (4y/2016 x 505/505+liquid) with unchanged production knobs.
Runner caches full GTL candidates then re-ranks per arm; MacBook entry via
run_tier1_macbook.sh --prod-book-matrix.

scripts/run_tier1_macbook.sh

@@ -16,6 +16,7 @@
 #   ./scripts/run_tier1_macbook.sh --harness-only   # skip rebuild; race-guard + IC only
 #   ./scripts/run_tier1_macbook.sh --coverage-only  # bars-per-year probe only
 #   ./scripts/run_tier1_macbook.sh --sector-resid-deep  # deepen shallow + ONE masked grade
+#   ./scripts/run_tier1_macbook.sh --prod-book-matrix   # 4-arm universe×horizon book matrix
 #
 # Does NOT touch production Postgres, scheduler, gates, or prod config.
 
@@ -36,7 +37,7 @@ FMP_SLEEP="${FMP_SLEEP:-0.35}"
 PYTHON="${PYTHON:-python3}"
 USE_CORP_PROXY="${USE_CORP_PROXY:-0}"
 
-PHASE="depth" # depth | all | earnings | harness | coverage | ssl | sector-resid-deep
+PHASE="depth" # depth | all | earnings | harness | coverage | ssl | sector-resid-deep | prod-book
 
 usage() {
   sed -n '2,25p' "$0" | sed 's/^# \?//'
@@ -61,6 +62,7 @@ while [[ $# -gt 0 ]]; do
     --depth) PHASE=depth; shift ;;
     --ssl-check) PHASE=ssl; shift ;;
     --sector-resid-deep) PHASE=sector_resid_deep; shift ;;
+    --prod-book-matrix) PHASE=prod_book; shift ;;
     --corp-proxy) USE_CORP_PROXY=1; shift ;;
     --prod-snap) PROD_SNAP="$2"; shift 2 ;;
     --research-snap) RESEARCH_SNAP="$2"; shift 2 ;;
@@ -237,6 +239,16 @@ run_sector_resid_deep() {
     --allow-spawn
 }
 
+run_prod_book_matrix() {
+  need_file "$RESEARCH_SNAP"
+  log "Production book × universe × horizon (4 arms, strategy unchanged)"
+  "$PYTHON" scripts/run_prod_book_universe_matrix.py \
+    --snapshot "$RESEARCH_SNAP" \
+    --workers "$WORKERS" \
+    --allow-spawn \
+    --candidate-cache reports/.cache/prod-book-universe-cands.pkl
+}
+
 log "cwd=$ROOT  python=$PYTHON  phase=$PHASE  workers=$WORKERS"
 setup_ssl
 
@@ -247,6 +259,9 @@ case "$PHASE" in
   sector_resid_deep)
     run_sector_resid_deep
     ;;
+  prod_book)
+    run_prod_book_matrix
+    ;;
   coverage)
     run_coverage
     ;;