fix: DB路径大面积修复——mofin_db/server/technical_analysis/strategy_tree等脚本的Path(__file__).parent/data错误指向scripts/data而非data/ 导致读写分离

- 量价分析: full_analysis输出volume_deep+成交量存储在price_history.json
- FK约束移除: holding_strategies外键->holdings阻止自选股写入
- #000850 重评已写入(止损3.74/止盈4.06/RR1.67)含量价信号

scripts/strategy_tree.py

@@ -74,7 +74,7 @@ def detect_scenario():
         # 优先 DB
         import sqlite3
         from pathlib import Path
-        db = sqlite3.connect(str(Path(__file__).parent / "data" / "mofin.db"))
+        db = sqlite3.connect(str(Path(__file__).parent.parent / "data" / "mofin.db"))
         mrow = db.execute(
             "SELECT indices, structure, sector_mood FROM macro_context_log "
             "WHERE has_valid_data=1 ORDER BY created_at DESC LIMIT 1"