fix(rectification): 候选分钟不变量记忆化（BUG-721）

Shadbala / Ashtakavarga / Dasha 时间轴进 static context；过境盘按事件日期缓存 chart；探针网格相同时只算一次。打分与决策回执与基线 golden 逐字相同（剔除计时字段）。

scripts/rectification/scoring_service.py

@@ -5,7 +5,6 @@ import json
 from collections import defaultdict
 from collections.abc import Callable, Sequence
 from datetime import date, timedelta
-from functools import lru_cache
 from typing import Any
 
 from scripts.active_rectification_event_engine import compute_candidate_static_contexts, compute_event_candidate_rows
@@ -126,11 +125,6 @@ def _canonical(value: Any) -> str:
     return json.dumps(value, ensure_ascii=True, sort_keys=True, separators=(",", ":"))
 
 
-@lru_cache(maxsize=4096)
-def _cached_rows(serialized: str) -> tuple[CandidateScoreRow, ...]:
-    return tuple(compute_event_candidate_rows(json.loads(serialized)))
-
-
 _SUPPORT_RULES = (
     "functional_benefic_auxiliary",
     "arudha_auxiliary",