data_snapshot统一数据入口+DB银行locked修复+建滔/现金修正

data_snapshot.py: 所有报告脚本的唯一数据入口(通过mo_data读DB)
price_monitor.py: DB写入加了3次重试+PRAGMA busy_timeout=5000
quality gate: 新增GATE_PROFIT_EXISTS(止盈=0拦截)+GATE_9D_ANALYSIS
建滔(01888) DB已修正: price=84.9 HKD, cost=88.23 HKD, 浮亏-3.8%
现金已修正: 132,121.93 (frozen=0)

scripts/data_snapshot.py

@@ -0,0 +1,24 @@
+#!/usr/bin/env python3
+"""统一数据快照 — 所有报告脚本的单一数据入口。
+替代直接读 portfolio.json / decisions.json。
+MoFin 所有 LLM cron prompt 应改为运行本脚本获取数据。"""
+import sys, json
+sys.path.insert(0, '/home/hmo/MoFin')
+from mo_data import read_portfolio, read_decisions, read_watchlist
+
+pf = read_portfolio()
+dec = read_decisions()
+wl = read_watchlist()
+
+# 港股标记HKD
+for h in pf.get('holdings', []):
+    if h.get('currency') == 'HKD':
+        h['_price_display'] = f"{h['price']} HKD"
+    else:
+        h['_price_display'] = f"{h['price']} CNY"
+
+print(json.dumps({
+    "portfolio": pf,
+    "decisions": dec,
+    "watchlist": wl,
+}, ensure_ascii=False, indent=2))