fix: 全面系统修复 — delivery目标修正 + 脚本同步 + refresh_mtf_cache import修复 + clean_watchlist硬编码修复

修复清单：
- cron delivery修正：10个job从deliver=origin/all改为local，消除推送错误
- refresh_mtf_cache.py：替换strategy_lifecycle.PORTFOLIO_PATH导入为mofin_db直接读DB
- clean_watchlist.py：修复mo_data导入名错误和JSON硬编码路径
- MoFin/scripts/与profile scripts互相补全，双向sync到一致
- price_monitor.py：现金源从portfolio_summary表改为cash_log（Dad确认的现金权威）
- 更新watchlist.json加入000850华茂股份

data/price_history.json

@@ -266,7 +266,7 @@
       "date": "2026-07-06",
       "high": 90.58,
       "low": 80.46,
-      "close": 81.83
+      "close": 81.34
     }
   ],
   "000711": [
@@ -286,7 +286,7 @@
       "date": "2026-07-06",
       "high": 5.65,
       "low": 5.0,
-      "close": 5.29
+      "close": 5.17
     }
   ],
   "001309": [
@@ -402,5 +402,13 @@
       "low": 659.16,
       "close": 695.26
     }
+  ],
+  "000700": [
+    {
+      "date": "2026-07-06",
+      "high": 17.18,
+      "low": 16.3,
+      "close": 16.88
+    }
   ]
 }