refactor: 统一价格入口 mo_data.get_price() - 22个脚本移除自拉腾讯API

所有价格获取统一走 mo_data.get_price() / get_prices_batch():
  - 优先读 live_prices(DB) → 无/过期才调 stock_quote(API) → 自动写回DB
  - 22个脚本全部替换：branch_scanner chip_factors divergence_detector
    market_screener mo_provider mofin_collect monitor_300308 300308_monitor
    multi_timeframe refresh_macro_context stale_detector stale_push_wlin
    stock_profile strategy_evaluator strategy_lifecycle strategy_review
    strategy-staleness-check technical_analysis xiaoguo_signal_consumer
    collect_evaluation_data

data/candidate_pool.json

@@ -1,6 +1,6 @@
 {
-  "last_updated": "2026-07-07 14:07",
-  "total_candidates": 31,
+  "last_updated": "2026-07-08 15:41",
+  "total_candidates": 34,
   "sectors_analyzed_today": [
     "半导体",
     "金属新材料",
@@ -1483,6 +1483,102 @@
       "drop_reason": null,
       "trend_warning": false,
       "trend_note": ""
+    },
+    {
+      "code": "000977",
+      "name": "浪潮信息",
+      "sector": "计算机设备",
+      "xiaoguo_score": 7,
+      "xiaoguo_reason": "AI服务器核心标的，订单与产能优势明显，但受供应链与毛利率压制；板块资金流出中仍显相对韧性，适合逢低布局算力基建主线。",
+      "xiaoguo_strategy": {
+        "entry_range": "38.5-40.2",
+        "stop_loss": "36.8",
+        "target": "45.0"
+      },
+      "verified_price": 78.17,
+      "verified_change": 10.01,
+      "added_at": "2026-07-08 15:09",
+      "last_updated": "2026-07-08 15:09",
+      "num_observations": 1,
+      "score_history": [
+        {
+          "date": "2026-07-08 15:09",
+          "score": 7
+        }
+      ],
+      "zhiwei_star": null,
+      "zhiwei_reviewed": false,
+      "zhiwei_reviewed_at": null,
+      "promoted": false,
+      "promoted_at": null,
+      "dropped": false,
+      "drop_reason": null,
+      "trend_warning": false,
+      "trend_note": ""
+    },
+    {
+      "code": "603019",
+      "name": "中科曙光",
+      "sector": "计算机设备",
+      "xiaoguo_score": 7.5,
+      "xiaoguo_reason": "国产高性能计算与液冷技术龙头，政策与信创双重驱动，基本面稳健；波动率低于纯AI概念股，防御与进攻属性均衡。",
+      "xiaoguo_strategy": {
+        "entry_range": "42.0-43.5",
+        "stop_loss": "39.5",
+        "target": "48.0"
+      },
+      "verified_price": 98.15,
+      "verified_change": 4.97,
+      "added_at": "2026-07-08 15:09",
+      "last_updated": "2026-07-08 15:09",
+      "num_observations": 1,
+      "score_history": [
+        {
+          "date": "2026-07-08 15:09",
+          "score": 7.5
+        }
+      ],
+      "zhiwei_star": null,
+      "zhiwei_reviewed": false,
+      "zhiwei_reviewed_at": null,
+      "promoted": false,
+      "promoted_at": null,
+      "dropped": false,
+      "drop_reason": null,
+      "trend_warning": false,
+      "trend_note": ""
+    },
+    {
+      "code": "000938",
+      "name": "紫光股份",
+      "sector": "计算机设备",
+      "xiaoguo_score": 6.5,
+      "xiaoguo_reason": "ICT基础设施全栈布局（服务器/交换机/存储），H3C整合推进中；估值处于历史中低位，但短期受板块情绪拖累，需等待资金回流确认。",
+      "xiaoguo_strategy": {
+        "entry_range": "28.0-29.5",
+        "stop_loss": "26.2",
+        "target": "33.0"
+      },
+      "verified_price": 33.62,
+      "verified_change": 6.8,
+      "added_at": "2026-07-08 15:09",
+      "last_updated": "2026-07-08 15:09",
+      "num_observations": 1,
+      "score_history": [
+        {
+          "date": "2026-07-08 15:09",
+          "score": 6.5
+        }
+      ],
+      "zhiwei_star": null,
+      "zhiwei_reviewed": false,
+      "zhiwei_reviewed_at": null,
+      "promoted": false,
+      "promoted_at": null,
+      "dropped": false,
+      "drop_reason": null,
+      "trend_warning": false,
+      "trend_note": ""
     }
   ]
 }