fix(yoga): Neecha Bhanga lists the conditions that hold, never Raja Yoga (T8, BUG-1205)

Astrologer ruling 乙14. One condition source, yogas_doshas.calc_nicha_bhanga_raj_yoga
(conditions A-F, now also structured). New scripts/main_yoga_detectors.py turns it
into yoga_engine-shaped rows (zh + en twins) that YogaEngine.detect appends; the
four neechabhanga_* rules are reference_only (kept, renamed, not evaluated).
Card: traditional_yogas canonical 落陷取消（Neecha Bhanga） with 成立条件; compact
yoga entries keep conditions/reductions. Report: category 落陷取消, mixed group,
not raja; personal-report alias neecha_bhanga -> special.

Changed assertion (test_consultation_yoga_detection_merge): canonical name
'Neecha Bhanga Raja Yoga' -> '落陷取消（Neecha Bhanga）' (ruling 乙14).

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01N4f2nya58RoRu4yEmJgRGE

scripts/yoga_engine.py

@@ -16,6 +16,11 @@ import json
 import os
 from typing import Dict, List, Any, Optional
 
+try:  # scripts/ on sys.path
+    from main_yoga_detectors import main_detector_rows
+except ImportError:  # package import (scripts.yoga_engine)
+    from scripts.main_yoga_detectors import main_detector_rows
+
 # ============================================================================
 # 基础常量（自包含，避免循环导入）
 # ============================================================================
@@ -717,7 +722,14 @@ class YogaEngine:
             data = json.load(f)
         self.schema_version = data.get("schema_version", "1.0")
         self.rules = [r for r in data.get("rules", []) if r.get("enabled", True)
-                      and r.get("id") not in RETIRED_RULE_IDS]
+                      and r.get("id") not in RETIRED_RULE_IDS
+                      and not r.get("reference_only")]
+        # `reference_only` rules stay in the registry with their source and
+        # logic but are never evaluated: the yoga they name has one main
+        # detector (scripts/main_yoga_detectors.py; astrologer rulings
+        # 2026-10-03), whose rows `detect` appends below.
+        self.reference_only_rule_ids = sorted(
+            r.get("id") for r in data.get("rules", []) if r.get("reference_only"))
 
     def detect(self, planets: Dict[str, Dict], ascendant: str, context: Optional[Dict] = None) -> List[Dict]:
         """
@@ -774,6 +786,8 @@ class YogaEngine:
 
         # ── 附加算法级 Yoga（不在 rules JSON 中） ──
         results += self._detect_solar_lunar_yogas(ctx)
+        # ── 主检测器（同名 JSON 规则为 reference_only） ──
+        results += main_detector_rows(ctx.planets, ctx.ascendant)
 
         return results