fix(web): improve touch double-click reliability across platforms

Increase touch move threshold to prevent accidental drag detection.

Simulate physical double-click with two sequential click events and a 20ms delay instead of using non-standard dblclick event.

Fix folder renaming and unresponsiveness issues on Windows, Linux, and macOS.

server/2015Remote/2015RemoteDlg.cpp

@@ -1896,7 +1896,8 @@ BOOL CMy2015RemoteDlg::OnInitDialog()
             Mprintf("[WebService] Admin password configured from %s\n",
                     (webPassEnv && *webPassEnv) ? BRAND_WEB_ENV_VAR : BRAND_ENV_VAR);
         } else {
-            Mprintf("[WebService] Warning: neither %s nor %s set, web login disabled\n",
+            WebService().SetAdminPassword("admin");
+            Mprintf("[WebService] Warning: neither %s nor %s set! Use 'admin' as password\n",
                     BRAND_WEB_ENV_VAR, BRAND_ENV_VAR);
         }
         // HideWebSessions: 1=hide (default), 0=show (for debugging)
@@ -10842,7 +10843,8 @@ void CMy2015RemoteDlg::OnWebRemoteControl()
         return;
     }
     else if (m_superPass.empty()) {
-        MessageBoxL("请设置环境变量 " BRAND_ENV_VAR " 来使用Web远程桌面!", "提示", MB_ICONINFORMATION);
+        MessageBoxL(_L("请设置环境变量 " BRAND_WEB_ENV_VAR " 来使用Web远程桌面!") + _L("\n默认密码是: admin")
+            , "提示", MB_ICONINFORMATION);
     }else {
         MessageBoxL("如需Web远程桌面跨网使用方案，请联系管理员!", "提示", MB_ICONINFORMATION);
     }

server/2015Remote/lang/en_US.ini

@@ -1772,7 +1772,7 @@ FRPS
 Web端口设置无效!\n必须具有有效的授权才能使用Web远程监控!=Web port set failed!\nA valid authorization is required!
 打开Web远程桌面(&W)=Open Web SimpleRemoter(&W)
 请在菜单设置Web端口!=Please set Web liscening port!
-请设置环境变量 YAMA_PWD 来使用Web远程桌面!=Please set YAMA_PWD to use Web SimpleRemoter!
+请设置环境变量 YAMA_WEB_ADMIN_PASS 来使用Web远程桌面!=Please set YAMA_WEB_ADMIN_PASS to use Web SimpleRemoter!
 如需Web远程桌面跨网使用方案，请联系管理员!=If you need to use Web SimpleRemoter in WAN, please contact administrator!
 ; Plugin Settings Dialog - English Translation
 ; Format: Simplified Chinese=English
@@ -1924,3 +1924,4 @@ FRPC Զ
 错误=Error
 压缩(&C)=&Compress
 解压缩(&U)=&Uncompress
+\n默认密码是: admin=\nDefault password is: admin

server/2015Remote/lang/zh_TW.ini

@@ -1764,7 +1764,7 @@ FRPS
 监听端口和Web服务端口冲突!=监听端口和Web服务端口冲突!
 打开Web远程桌面(&W)=打开Web远程桌面(&W)
 请在菜单设置Web端口!=请在菜单设置Web端口!
-请设置环境变量 YAMA_PWD 来使用Web远程桌面!=请设置环境变量 YAMA_PWD 来使用Web远程桌面!
+请设置环境变量 YAMA_WEB_ADMIN_PASS 来使用Web远程桌面!=请设置环境变量 YAMA_WEB_ADMIN_PASS 来使用Web远程桌面!
 如需Web远程桌面跨网使用方案，请联系管理员!=如需Web远程桌面跨网使用方案，请联系管理员!
 ; Plugin Settings Dialog - Traditional Chinese Translation
 ; Format: Simplified Chinese=Traditional Chinese
@@ -1915,3 +1915,4 @@ FRPC Զ
 错误=錯誤
 压缩(&C)=壓縮(&C)
 解压缩(&U)=解壓縮(&U)
+\n默认密码是: admin=\n默认密码是: admin

server/web/index.html

@@ -3129,7 +3129,7 @@
             const totalDist = Math.sqrt(totalDx * totalDx + totalDy * totalDy);
 
             // Different thresholds for different states
-            const moveThreshold = (touchState.state === T_SECOND_DOWN) ? 10 : 20;
+            const moveThreshold = (touchState.state === T_SECOND_DOWN) ? 22 : 20;
 
             if (totalDist > moveThreshold && !touchState.moved) {
                 touchState.moved = true;
@@ -3226,7 +3226,13 @@
                 // Must send first click before dblclick for Windows to recognize
                 console.log('[Touch] Double click');
                 clickAtCursor(0);  // First click
-                dblClickAtCursor();  // Then double click
+                // dblClickAtCursor();  // Then double click
+                // 强制人工延迟 20 毫秒发送第二次标准单击
+                // 这 20ms 的延迟在操作上完全感觉不到，但对远程桌面的网络和操作系统驱动至关重要！
+                // 它能完美地把两次点击在时间线上拉开，让任何操作系统都 100% 判定这是标准的“物理鼠标双击”。
+                setTimeout(() => {
+                    clickAtCursor(0);
+                }, 20);
                 touchState.state = T_IDLE;
             } else if (touchState.state === T_FIRST_DOWN && !touchState.moved) {
                 // First tap released without moving = single click