搭建期货量化管理后台 MVP，支持行情查看、博弈分析、持仓录入、品种合约管理

ft-app/app/templates/input.html

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+{% extends "base.html" %}
+{% block title %}数据录入{% endblock %}
+{% block heading %}数据录入{% endblock %}
+{% block breadcrumb %}机构持仓录入{% endblock %}
+
+{% block content %}
+<div class="form-card">
+  <div class="section-title">持仓快照</div>
+  <form method="post" action="/input">
+    <div class="form-group">
+      <label>机构</label>
+      <select name="institution" required>
+        {% for inst in institutions %}
+        <option value="{{ inst }}">{{ inst }}</option>
+        {% endfor %}
+      </select>
+    </div>
+
+    <div class="form-group">
+      <label>方向</label>
+      <select name="direction" required>
+        <option value="long">多单</option>
+        <option value="short">空单</option>
+      </select>
+    </div>
+
+    <div class="form-group">
+      <label>日期</label>
+      <input type="date" name="date_str" required>
+    </div>
+
+    <div class="form-group">
+      <label>持仓量（手）</label>
+      <input type="number" name="position" required placeholder="例: 193030">
+    </div>
+
+    <div class="form-group">
+      <label>持仓均价</label>
+      <input type="number" name="avg_cost" step="0.01" required placeholder="例: 995.26">
+    </div>
+
+    <button type="submit" class="btn btn-primary">提交</button>
+  </form>
+</div>
+{% endblock %}