refactor: 将共用代码迁入 lib/ 模块化目录

统一 strategy、key_monitor、trade、hub 等共用库到 lib/ 子包，并补充 lib-structure 文档，便于四所与中控维护。

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

lib/strategy/templates/gate_transfer_block.html

@@ -0,0 +1,23 @@
+<details class="tip-collapse gate-top-tips-collapse">
+    <summary class="tip-collapse-summary">
+        实时价格更新：<span id="price-last-updated">--</span>（北京时间 UTC+8）
+        <span class="tip-collapse-hint">· 划转规则</span>
+    </summary>
+    <div class="tip-collapse-body rule-tip gate-transfer-tip">
+        划转：自动划转 {{ '开启' if auto_transfer_enabled else '关闭' }}（每天<strong>北京时间 {{ auto_transfer_bj_hour }}:00</strong>起该整点小时内尝试；账簿按 <strong>UTC 自然日</strong>去重；将 {{ auto_transfer_to }} 调整至 {{ transfer_amount_fmt }}U：不足从 {{ auto_transfer_from }} 划入、超出划回 {{ auto_transfer_from }}；<strong>持仓中不划转</strong>并微信通知）
+    </div>
+</details>
+<form action="/manual_transfer" method="post" class="form-row gate-transfer-form">
+    <input name="amount" type="number" min="0.01" step="0.01" placeholder="手动划转金额U" required>
+    <select name="from_account">
+        <option value="funding" {% if auto_transfer_from == 'funding' %}selected{% endif %}>from: funding</option>
+        <option value="swap" {% if auto_transfer_from == 'swap' %}selected{% endif %}>from: swap</option>
+        <option value="spot" {% if auto_transfer_from == 'spot' %}selected{% endif %}>from: spot</option>
+    </select>
+    <select name="to_account">
+        <option value="swap" {% if auto_transfer_to == 'swap' %}selected{% endif %}>to: swap</option>
+        <option value="funding" {% if auto_transfer_to == 'funding' %}selected{% endif %}>to: funding</option>
+        <option value="spot" {% if auto_transfer_to == 'spot' %}selected{% endif %}>to: spot</option>
+    </select>
+    <button type="submit">手动划转</button>
+</form>