fix(report): use the upstream reader edition for new longform bodies

New reports request reader_main from upstream origin/main 23b9609e.
KP and transit no longer copy an empty vars() dict, solar returns keep
birth_asc_sign_idx, and ordinary projection deletes internal lines whole.

scripts/solar_return.py

@@ -401,6 +401,7 @@ def calc_solar_return_chart(
             'houses': houses,
             'ascendant': ascendant,
             'asc_sign_idx': sr_asc_idx,
+            'birth_asc_sign_idx': birth_asc_idx,
             'target_year': target_year,
             'birth_year': birth_year,
             'age': target_year - birth_year,
@@ -505,14 +506,20 @@ def solar_return_full_report(
     # 3. Year Lord（= Muntha 守护星）
     try:
         muntha_data = result.get('muntha', {})
-        muntha_sign_val = muntha_data.get('muntha_sign_idx', muntha_sign if 'muntha_sign' in dir() else 0)
-        year_lord_sign = muntha_sign_val
-        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],
-        }
+        muntha_sign_val = muntha_data.get('muntha_sign_idx') if isinstance(muntha_data, dict) else None
+        if not isinstance(muntha_sign_val, int) or isinstance(muntha_sign_val, bool):
+            result['year_lord'] = {
+                'status': 'blocked',
+                '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],
+            }
     except Exception as e:
         result['year_lord'] = {'error': str(e)}