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

addons/translate/library/google-translate-php/tests/LanguageDetectionTest.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace Stichoza\GoogleTranslate\Tests;
+
+use PHPUnit\Framework\TestCase;
+use Stichoza\GoogleTranslate\GoogleTranslate;
+
+class LanguageDetectionTest extends TestCase
+{
+    public $tr;
+
+    public function setUp()
+    {
+        $this->tr = new GoogleTranslate();
+    }
+
+    public function testSingleWord()
+    {
+        $this->tr->translate('გამარჯობა');
+        $this->assertEquals($this->tr->getLastDetectedSource(), 'ka');
+
+        $this->tr->translate('Cześć');
+        $this->assertEquals($this->tr->getLastDetectedSource(), 'pl');
+    }
+
+    public function testSingleSentence()
+    {
+        $this->tr->translate('იყო არაბეთს როსტევან');
+        $this->assertEquals($this->tr->getLastDetectedSource(), 'ka');
+
+        $this->tr->translate('Путин хуйло');
+        $this->assertEquals($this->tr->getLastDetectedSource(), 'ru');
+    }
+
+    public function testMultipleSentence()
+    {
+        $this->tr->translate('ჩემი ხატია სამშობლო. სახატე - მთელი ქვეყანა. განათებული მთა-ბარი.');
+        $this->assertEquals($this->tr->getLastDetectedSource(), 'ka');
+
+        $this->tr->translate('Ще не вмерла Україна, И слава, и воля! Ще намъ, браття-молодці, Усміхнеться доля!');
+        $this->assertEquals($this->tr->getLastDetectedSource(), 'uk');
+    }
+}