feat: 后端全量更新 - 含所有本次需求

- Contract.php: 返回合约账户余额(balance_contract)
- My.php: 地址管理增加BTC/ETH
- AppContract.php: 一键平仓(closeall)
- AppProxy.php: 代理专属注册链接 + 分级权限(L1/L2)
- site.php: 手续费减半(0.018→0.009)
- agent_permission_setup.sql: 代理权限SQL
- crypto_news_crawler.py: 新闻自动采集脚本

public/assets/libs/eonasdan-bootstrap-datetimepicker/docs/Functions.md

@@ -0,0 +1,82 @@
+## Functions
+
+<div class="alert alert-info">
+    <strong>Note</strong>
+    All functions are accessed via the <code>data</code> attribute e.g. <code>$('#datetimepicker').data("DateTimePicker").FUNCTION()</code>
+</div>
+
+###destroy()
+
+Destroys the widget and removes all attached event listeners
+
+----------------------
+
+### toggle()
+
+Shows or hides the widget
+
+#### Emits
+
+* `dp.hide` - if the widget is hidden after the toggle call
+
+* `dp.show` - if the widget is show after the toggle call
+
+* `dp.change` - if the widget is opened for the first time and the input element is empty and `options.useCurrent != false`
+
+----------------------
+
+### show()
+
+Shows the widget
+
+#### Emits
+
+* `dp.show` - if the widget was hidden before that call
+
+* `dp.change` - if the widget is opened for the first time and the useCurrent is set to true or to a granularity value and the input element the component is attached to has an empty value
+
+----------------------
+
+### hide()
+
+Hides the widget
+
+#### Emits
+
+* `dp.hide` - if the widget was visible before that call
+
+----------------------
+
+### disable()
+
+Disables the input element, the component is attached to, by adding a `disabled="true"` attribute to it. If the widget was visible before that call it is hidden.
+
+#### Emits
+
+* `dp.hide` - if the widget was visible before that call
+
+----------------------
+
+### enable()
+
+Enables the input element, the component is attached to, by removing `disabled` attribute from it.
+
+----------------------
+
+### clear()
+
+Clears the datepicker by setting the value to `null`
+
+### viewDate
+
+<small>4.14.30</small> Issue #872
+
+#### viewDate()
+
+Returns a `moment` variable with the currently set `options.viewDate` option.
+
+#### viewDate(viewDate)
+
+Takes a `string, moment or Date` value.
+
+This will change the `viewDate` without changing or setting the selected date.