feat(tajika): year lord by the Panchadhikari rule, ported from upstream c7117f92 (BUG-1214)

Round-4 astrologer ruling Q3. tajika.calc_panchadhikari_year_lord and its
missing pieces (Tri-Rasi tables, planet index maps, ayanamsa-aware PyJHora
lookups) plus references/tajika_panchavargiya_rules.json (blob e8c15ac3) are
ported verbatim from yinduzhanxing c7117f92, with one keyword added
(muntha_sign_idx): upstream builds the Muntha-lord candidate from the annual
Lagna + years; ours stays natal Lagna + completed years (BUG-1212).

Both annual producers (solar_return_full_report, cmd_tajika) call the new
tajika_year_lord.select_annual_year_lord, so the pack conflict gate compares
the same rule. Output carries candidates / candidate_list with Panchavargiya
score and engine, aspect flags, selection_basis and a one-sentence basis
(zh/en). The product path always uses the native proxy (PyJHora is AGPL, absent
from the API image and CI); JYOTISH_YEAR_LORD_PYJHORA_REFERENCE=1 restores the
upstream PyJHora lookup for research. Card varshesha_basis and the report
'Selection basis' rows show the sentence; the BUG-1212 stand-in label is gone.
Mudda Dasha and Tri-Pataka follow the selected year lord.

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

scripts/solar_return.py

@@ -545,7 +545,9 @@ def solar_return_full_report(
     except Exception as e:
         result['muntha'] = {'error': str(e)}
 
-    # 3. Year Lord（= Muntha 守护星）
+    # 3. Year Lord：Panchadhikari 选法（占星师第四轮问 3，BUG-1214）。
+    #    与 cmd_tajika 共用 tajika_year_lord.select_annual_year_lord；年盘不全
+    #    （降级模式或 Muntha 缺失）时才用 Muntha 主星，并写明 fallback。
     try:
         muntha_data = result.get('muntha', {})
         muntha_sign_val = muntha_data.get('muntha_sign_idx') if isinstance(muntha_data, dict) else None
@@ -555,13 +557,16 @@ def solar_return_full_report(
                 'reason': 'muntha_sign_required_for_year_lord',
             }
         else:
-            year_lord_sign = muntha_sign_val % 12
-            year_lord = SIGN_LORDS[SIGNS[year_lord_sign]]
-            result['year_lord'] = {
-                'year_lord': year_lord,
-                'year_lord_sign_idx': year_lord_sign,
-                'year_lord_sign': SIGNS[year_lord_sign],
-            }
+            from tajika_year_lord import select_annual_year_lord
+            result['year_lord'] = select_annual_year_lord(
+                sr,
+                natal_asc_sign_idx=sr['birth_asc_sign_idx'],
+                completed_years=age,
+                ayanamsa_name=ayanamsa_name,
+                birth_lat=birth_lat,
+                birth_lon=birth_lon,
+                birth_tz=birth_tz,
+            )
     except Exception as e:
         result['year_lord'] = {'error': str(e)}