重构期货监控系统：多页面导航、开单计划、Ubuntu PM2 部署

Co-authored-by: Cursor <cursoragent@cursor.com>

templates/keys.html

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+{% extends "base.html" %}
+{% block title %}关键位监控 - 国内期货监控系统{% endblock %}
+{% block content %}
+<h1 class="page-title">关键位监控</h1>
+
+<div class="card">
+    <h2>新增监控</h2>
+    <form action="{{ url_for('add_key') }}" method="post" class="form-row">
+        <div class="symbol-wrap">
+            <input type="text" class="symbol-input" placeholder="输入中文品种名" autocomplete="off" required>
+            <input type="hidden" name="symbol" required>
+            <input type="hidden" name="symbol_name">
+            <div class="symbol-dropdown"></div>
+            <div class="symbol-selected"></div>
+        </div>
+        <select name="type" required>
+            <option value="箱体突破">箱体突破</option>
+            <option value="收敛突破">收敛突破</option>
+            <option value="关键阻力位">关键阻力位</option>
+            <option value="关键支撑位">关键支撑位</option>
+        </select>
+        <select name="direction" required>
+            <option value="">选择方向</option>
+            <option value="long">做多</option>
+            <option value="short">做空</option>
+        </select>
+        <input name="upper" type="number" step="0.0001" placeholder="上沿/阻力" required>
+        <input name="lower" type="number" step="0.0001" placeholder="下沿/支撑" required>
+        <button type="submit" class="btn-primary">添加监控</button>
+    </form>
+</div>
+
+<div class="card">
+    <h2>监控列表</h2>
+    <div class="list">
+        {% for k in keys %}
+        <div class="list-item">
+            <div>
+                <strong>{{ k.symbol_name or k.symbol }}</strong> | {{ k.monitor_type }}
+                <span class="badge dir">{{ '做多' if k.direction == 'long' else '做空' }}</span>
+            </div>
+            <div>上: {{ k.upper }} | 下: {{ k.lower }}</div>
+            <div style="font-size:.8rem;color:#888">{{ k.symbol }}</div>
+            <a href="{{ url_for('del_key', pid=k.id) }}" class="btn-del" onclick="return confirm('删除？')">删除</a>
+        </div>
+        {% else %}
+        <div style="color:#888;padding:1rem">暂无关键位监控</div>
+        {% endfor %}
+    </div>
+</div>
+{% endblock %}