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

application/admin/view/kefu/toolbar/index.html

@@ -0,0 +1,39 @@
+<div class="panel panel-default panel-intro">
+    {:build_heading()}
+
+
+    <div class="panel-body">
+        <div id="myTabContent" class="tab-content">
+            <div class="tab-pane fade active in" id="one">
+                <div class="widget-body no-padding">
+                    <div id="toolbar" class="toolbar">
+                        <a href="javascript:;" class="btn btn-primary btn-refresh" title="{:__('Refresh')}"><i class="fa fa-refresh"></i></a>
+                        <a href="javascript:;" class="btn btn-success btn-add {:$auth->check('kefu/toolbar/add')?'':'hide'}" title="{:__('Add')}"><i class="fa fa-plus"></i> {:__('Add')}</a>
+                        <a href="javascript:;" class="btn btn-success btn-edit btn-disabled disabled {:$auth->check('kefu/toolbar/edit')?'':'hide'}" title="{:__('Edit')}"><i class="fa fa-pencil"></i> {:__('Edit')}</a>
+                        <a href="javascript:;" class="btn btn-danger btn-del btn-disabled disabled {:$auth->check('kefu/toolbar/del')?'':'hide'}" title="{:__('Delete')}"><i class="fa fa-trash"></i> {:__('Delete')}</a>
+
+                        <div class="dropdown btn-group {:$auth->check('kefu/toolbar/multi')?'':'hide'}">
+                            <a class="btn btn-primary btn-more dropdown-toggle btn-disabled disabled" data-toggle="dropdown"><i class="fa fa-cog"></i> {:__('More')}</a>
+                            <ul class="dropdown-menu text-left" role="menu">
+                                <li>
+                                    <a class="btn btn-link btn-multi btn-disabled disabled" href="javascript:;" data-params="status=1"><i class="fa fa-eye"></i> {:__('Set to normal')}</a>
+                                </li>
+                                <li>
+                                    <a class="btn btn-link btn-multi btn-disabled disabled" href="javascript:;" data-params="status=0"><i class="fa fa-eye-slash"></i> {:__('Set to hidden')}</a>
+                                </li>
+                            </ul>
+                        </div>
+
+                        <a class="btn btn-success btn-recyclebin btn-dialog {:$auth->check('kefu/toolbar/recyclebin')?'':'hide'}" href="kefu/toolbar/recyclebin" title="{:__('Recycle bin')}"><i class="fa fa-recycle"></i> {:__('Recycle bin')}</a>
+                    </div>
+                    <table id="table" class="table table-striped table-bordered table-hover table-nowrap"
+                           data-operate-edit="{:$auth->check('kefu/toolbar/edit')}"
+                           data-operate-del="{:$auth->check('kefu/toolbar/del')}"
+                           width="100%">
+                    </table>
+                </div>
+            </div>
+
+        </div>
+    </div>
+</div>