fix(engine): pair double-transit D1+D9 targets by identity, not name digits (BUG-1061)

Every D9 target name contains the "9" of "D9", so the digit comparison never
paired D1 N宫 with D9_N宫 and, for house 9, paired D1 9宫 with any D9 planet
target. Targets now carry structured metadata (layer/kind/house/planet); the
cross-layer loop pairs only the same house or targets that both point at the
D1 house-N lord. Target names and D1/D9/CL layer results are unchanged
(D1/CL golden regenerated byte-identical); 48 samples: cross entries 31 -> 38.
Evidence-card golden regenerated with the capture script.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017eEAG8HD3mm8gsKXgk8uU8

scripts/run_quality_gate.py

@@ -104,6 +104,8 @@ CORE_PYTEST_TARGETS = [
     "tests/test_consultation_native_layers.py",
     # BUG-1060: Double Transit PAC D9 targets use the D9 signs their labels name.
     "tests/test_double_transit_d9_targets.py",
+    # BUG-1061: D1+D9 cross-layer entries pair targets by structured identity, not name digits.
+    "tests/test_double_transit_cross_layer_pairing.py",
     "tests/test_relationship_event_class_evidence.py",
     "tests/test_thematic_dasha_info_source.py",
     "tests/test_report_orchestrator_marriage_timing.py",