v6.9.10: Chara Dasha 尊贵状态 Bug 修复 + 多 Ayanamsa 支持

fix(chara): calc_chara_dasha 尊贵比较 Bug — lord_house==set() → lord_house in set()
  影响: dignity_adjustment 字段始终显示 'none' → 现已正确显示 exalted/debilitated
  根因: int 与 set 比较永远 False (jaimini.py:527-530)

feat(ayanamsa): 多恒星黄道系统支持 — --ayanamsa 参数
  支持: lahiri(默认), raman, kp, fagan_bradley, djwhal_khul, sassanian, true_citra
  用法: jyotish_engine chart --ayanamsa raman ...
  验证: Lahiri 23.32° / Raman 21.87° / KP 23.22° (Obama 1961)

chore: 引擎版本号 v3.7.0→v6.9.9

scripts/jaimini.py

@@ -521,12 +521,14 @@ def calc_chara_dasha(asc_sign_idx: int,
         lord_house_name = SIGNS[lord_house]
 
         # 尊贵状态
-        dignities = _PLANET_DIGNITY.get(lord, {})
+        dignities = _PLANET_DIGNITY_KNRAO.get(lord, {})
         dignity_status = 'none'
         if dignities:
-            if lord_house == dignities.get('exalted'):
+            exalted_set = dignities.get('exalted', set())
+            debil_set = dignities.get('debilitated', set())
+            if lord_house in exalted_set:
                 dignity_status = 'exalted'
-            elif lord_house == dignities.get('debilitated'):
+            elif lord_house in debil_set:
                 dignity_status = 'debilitated'
 
         dasha_sequence.append({