Copy the full-data packet once per report, not once per domain (issue #122, BUG-1471)

read_full_data_domain deep-copied the shared worksheets on every call; a long
report reads five domains twice, so ten copies for read-only use. The shared
part is now copied once (full_data_domain_base) and reused for every domain's
facts and their leaf check; each domain's facts are still copied out so domains
share no objects. Long reports byte-identical on four fictional charts; with
#121, -24–29% end to end.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DbBXoz1Qk3y9buDv1mkmTu

scripts/report_render/reading_facts.py

@@ -14,9 +14,11 @@ from typing import Any
 try:
     from scripts.consult_card_domain_facts import assert_fact_leaves, build_consult_card_facts, dig
     from scripts.consult_full_data_cache import _attach_graha_drishti
+    from scripts.pl9_full_data_export import full_data_domain_base
 except ModuleNotFoundError:  # pragma: no cover - direct scripts/ execution path
     from consult_card_domain_facts import assert_fact_leaves, build_consult_card_facts, dig
     from consult_full_data_cache import _attach_graha_drishti
+    from pl9_full_data_export import full_data_domain_base
 
 READING_FACTS_SCHEMA = "report-reading-facts-v1"
 READING_DOMAINS = ("general", "career", "wealth", "marriage", "health")
@@ -87,10 +89,12 @@ def build_report_reading_facts(
 ) -> dict[str, Any]:
     """Compact, packet-sourced facts for the reading. Raises on any non-packet leaf."""
     working = _attach_graha_drishti(copy.deepcopy(packet), full_reading)
-    raw = build_consult_card_facts(working, list(READING_DOMAINS), minute_confirmed=minute_confirmed)
+    # One detached copy of the packet serves every domain's facts and their leaf check (issue #122).
+    base = full_data_domain_base(working)
+    raw = build_consult_card_facts(working, list(READING_DOMAINS), minute_confirmed=minute_confirmed, base=base)
     rows = {row["domain"]: row for row in raw["domains"]}
     for row in rows.values():
-        assert_fact_leaves(working, row)
+        assert_fact_leaves(working, row, base=base)
     general = rows["general"]
     planets = {}
     for name, record in general["planets"].items():