fix(tajika): year lord blocked instead of Muntha-lord stand-in (BUG-1223)

Panchadhikari blocked -> status blocked + reason, year_lord None, sentence
「年主暂无法确定（原因）」 on card and report; Tri-Pataka blocked with it;
Mudda unchanged. Aligned with upstream 03bea6ed. Nine public charts: both
producers byte-identical before/after.

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

scripts/pl9_reader_export.py

@@ -577,6 +577,10 @@ def render_pl9_parity_markdown(packet: dict) -> str:
 
     def _annual_selection_basis(year_lord, muntha) -> str:
         year_lord = _dict(year_lord)
+        blocked_detail = _dict(year_lord.get('blocked_detail'))
+        if year_lord.get('status') == 'blocked' and blocked_detail.get('selection_basis_text'):
+            # BUG-1223: no stand-in year lord; 「年主暂无法确定（原因）」.
+            return _cell(blocked_detail['selection_basis_text'])
         if year_lord.get('status') == 'conflict':
             return '两种计算口径给出的年主不同，暂不合并'
         data = _dict(year_lord.get('data') or year_lord)