feat: xmpp bot最终修复版+skill文档同步

xmpp_agent_core.py 当前工作配置记录:
1. send_presence() — presence = available, 否则私聊进离线
2. 入站消息队列(_inbound_queue) — 崩了不丢, 重试3次
3. 出站队列(_outbound_queue) — 崩了自动重启
4. XMPP心跳检测(xep_0199 ping) — run_filters死后15s内重连
5. 私聊回复双通道: send_message(指定resource) + send_stanza(裸JID)
6. AGENT_MENTION动态解析(群聊@知微识别)
7. session_id保持xmpp-zhiwei-v2不变(不因重启换session)
8. 断线重连2秒延迟(防资源冲突)

data/stocks/601899.json

@@ -56,6 +56,11 @@
       "content": "**紫金矿业(601899) 27.65 | 仓位8.19%** — 贵金属板块暴跌-8.6%、工业金属-5.53%，双杀！深套31%为第一大仓位，若本周破前低24.98需考虑减仓至5%控制风险。",
       "report_id": "cron_99c06255590a_2026-06-25_08-33-37"
     },
+    {
+      "time": "2026-06-26T08:55:32.944422",
+      "content": "**紫金矿业(601899)** — 贵金属板块两日累跌-8%，隔夜金价再跌-0.44%，距止损24.48仅5.6%空间",
+      "report_id": "cron_99c06255590a_2026-06-26_08-43-03"
+    },
     {
       "time": "2026-06-01T10:25:54.419132",
       "content": "2. **紫金矿业(601899)** 进入加仓区间29-30，可考虑分批加仓",
@@ -551,6 +556,11 @@
       "content": "4. **紫金矿业(601899)**：金铜价格走势，反弹至34+减仓窗口",
       "report_id": "cron_d42f2ce3b479_2026-06-02_20-02-43"
     },
+    {
+      "time": "2026-06-26T08:55:33.008635",
+      "content": "**紫金矿业(601899) 25.92(-6.26%) | 距止损-20.8%！** 成本40.27浮亏-35.6%，资源板块连续重挫，贵金属/工业金属全线杀跌。建议：24.5设观察线，破则减半仓。",
+      "report_id": "cron_d42f2ce3b479_2026-06-25_20-10-53"
+    },
     {
       "time": "2026-06-22T08:55:38.754230",
       "content": "| **紫金矿业(601899)** | 成本$40.27，止盈$34.47已低于成本，仓位6.98%第二大 | 策略可能需要重新评估——止盈低于成本价，逻辑错误 |",