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/general/attachment/add.html

@@ -0,0 +1,51 @@
+<form id="add-form" class="form-horizontal form-ajax" role="form" data-toggle="validator" method="POST" action="">
+    {if $config.upload.cdnurl}
+    <div class="form-group">
+        <label for="c-third" class="control-label col-xs-12 col-sm-2">{:__('Upload to third')}:</label>
+        <div class="col-xs-12 col-sm-8">
+            <input type="text" name="row[third]" id="c-third" class="form-control" />
+        </div>
+    </div>
+
+    <div class="form-group">
+        <label for="c-third" class="control-label col-xs-12 col-sm-2"></label>
+        <div class="col-xs-12 col-sm-8">
+            <button type="button" id="faupload-third" class="btn btn-danger faupload" data-multiple="true" data-input-id="c-third" ><i class="fa fa-upload"></i> {:__("Upload to third")}</button>
+            {if $config.upload.chunking}
+            <button type="button" id="faupload-third-chunking" class="btn btn-danger faupload" data-chunking="true" data-maxsize="1gb" data-multiple="true" data-input-id="c-third" ><i class="fa fa-upload"></i> {:__("Upload to third by chunk")}</button>
+            {/if}
+        </div>
+    </div>
+    {/if}
+
+    <div class="form-group">
+        <label for="c-local" class="control-label col-xs-12 col-sm-2">{:__('Upload to local')}:</label>
+        <div class="col-xs-12 col-sm-8">
+            <input type="text" name="row[local]" id="c-local" class="form-control" />
+        </div>
+    </div>
+
+    <div class="form-group">
+        <label for="c-local" class="control-label col-xs-12 col-sm-2"></label>
+        <div class="col-xs-12 col-sm-8">
+            <button type="button" id="faupload-local" class="btn btn-primary faupload" data-input-id="c-local" data-url="{:url('ajax/upload')}"><i class="fa fa-upload"></i> {:__("Upload to local")}</button>
+            {if $config.upload.chunking}
+            <button type="button" id="faupload-local-chunking" class="btn btn-primary faupload" data-chunking="true" data-maxsize="1gb" data-input-id="c-local" data-url="{:url('ajax/upload')}"><i class="fa fa-upload"></i> {:__("Upload to local by chunk")}</button>
+            {/if}
+        </div>
+    </div>
+
+
+    <div class="form-group">
+        <label for="c-editor" class="control-label col-xs-12 col-sm-2">{:__('Upload from editor')}:</label>
+        <div class="col-xs-12 col-sm-8">
+            <textarea name="row[editor]" id="c-editor" cols="60" rows="5" class="form-control editor"></textarea>
+        </div>
+    </div>
+    <div class="form-group hidden layer-footer">
+        <div class="col-xs-2"></div>
+        <div class="col-xs-12 col-sm-8">
+            <button type="reset" class="btn btn-default btn-embossed">{:__('Reset')}</button>
+        </div>
+    </div>
+</form>