修复ECH功能：删除额外参数，保持v2.9格式

- 修复图形界面ECH开关显示问题（未开启时正确显示为关闭状态）
- 删除ECH相关的额外参数（alpn、insecure、allowInsecure）
- 未开启ECH时URL保持v2.9格式，只包含基本参数
- 开启ECH时只添加ech参数，不添加其他额外参数

Author: byJoey

明文源吗

@@ -1589,10 +1589,7 @@
                         encryption: 'none', 
                         security: 'tls', 
                         sni: workerDomain, 
-                        fp: 'chrome',
-                        alpn: 'h3,h2,http/1.1',
-                        insecure: '1',
-                        allowInsecure: '1',
+                        fp: 'randomized',
                         type: 'ws', 
                         host: workerDomain, 
                         path: wsPath
@@ -1671,9 +1668,6 @@
                         security: 'tls', 
                         sni: workerDomain, 
                         fp: 'chrome',
-                        alpn: 'h3,h2,http/1.1',
-                        insecure: '1',
-                        allowInsecure: '1',
                         type: 'ws', 
                         host: workerDomain, 
                         path: wsPath
@@ -3577,7 +3571,7 @@
                     document.getElementById('ev').checked = config.ev !== 'no';
                     document.getElementById('et').checked = config.et === 'yes';
                     document.getElementById('ex').checked = config.ex === 'yes';
-                    document.getElementById('ech').checked = config.ech !== 'no';
+                    document.getElementById('ech').checked = config.ech === 'yes';
                     document.getElementById('tp').value = config.tp || '';
                     document.getElementById('scu').value = config.scu || '';
                     document.getElementById('epd').checked = config.epd !== 'no';
@@ -5302,7 +5296,7 @@
             if (CF_HTTPS_PORTS.includes(port)) {
 
                 const wsNodeName = `${nodeName}-${port}-WS-TLS`;
-                let link = `${proto}://${user}@${item.ip}:${port}?encryption=none&security=tls&sni=${workerDomain}&fp=chrome&alpn=h3%2Ch2%2Chttp%2F1.1&insecure=1&allowInsecure=1&type=ws&host=${workerDomain}&path=${wsPath}`;
+                let link = `${proto}://${user}@${item.ip}:${port}?encryption=none&security=tls&sni=${workerDomain}&fp=randomized&type=ws&host=${workerDomain}&path=${wsPath}`;
 
                 // 如果启用了ECH且有ECH配置，添加ech参数
                 if (enableECH && echConfig) {
@@ -5321,7 +5315,7 @@
             } else {
 
                 const wsNodeName = `${nodeName}-${port}-WS-TLS`;
-                let link = `${proto}://${user}@${item.ip}:${port}?encryption=none&security=tls&sni=${workerDomain}&fp=chrome&alpn=h3%2Ch2%2Chttp%2F1.1&insecure=1&allowInsecure=1&type=ws&host=${workerDomain}&path=${wsPath}`;
+                let link = `${proto}://${user}@${item.ip}:${port}?encryption=none&security=tls&sni=${workerDomain}&fp=randomized&type=ws&host=${workerDomain}&path=${wsPath}`;
 
                 // 如果启用了ECH且有ECH配置，添加ech参数
                 if (enableECH && echConfig) {
@@ -5353,9 +5347,6 @@
                 security: 'tls',
                 sni: workerDomain,
                 fp: 'chrome',
-                alpn: 'h3,h2,http/1.1',
-                insecure: '1',
-                allowInsecure: '1',
                 type: 'xhttp',
                 host: workerDomain,
                 path: `/${nodePath}`,
@@ -5390,7 +5381,7 @@
             if (CF_HTTPS_PORTS.includes(port)) {
 
                 const wsNodeName = `${nodeName}-${port}-${atob('VHJvamFu')}-WS-TLS`;
-                let link = `${atob('dHJvamFuOi8v')}${password}@${item.ip}:${port}?security=tls&sni=${workerDomain}&fp=chrome&alpn=h3%2Ch2%2Chttp%2F1.1&insecure=1&allowInsecure=1&type=ws&host=${workerDomain}&path=${wsPath}`;
+                let link = `${atob('dHJvamFuOi8v')}${password}@${item.ip}:${port}?security=tls&sni=${workerDomain}&fp=chrome&type=ws&host=${workerDomain}&path=${wsPath}`;
 
                 // 如果启用了ECH且有ECH配置，添加ech参数
                 if (enableECH && echConfig) {
@@ -5409,7 +5400,7 @@
             } else {
 
                 const wsNodeName = `${nodeName}-${port}-${atob('VHJvamFu')}-WS-TLS`;
-                let link = `${atob('dHJvamFuOi8v')}${password}@${item.ip}:${port}?security=tls&sni=${workerDomain}&fp=chrome&alpn=h3%2Ch2%2Chttp%2F1.1&insecure=1&allowInsecure=1&type=ws&host=${workerDomain}&path=${wsPath}`;
+                let link = `${atob('dHJvamFuOi8v')}${password}@${item.ip}:${port}?security=tls&sni=${workerDomain}&fp=chrome&type=ws&host=${workerDomain}&path=${wsPath}`;
 
                 // 如果启用了ECH且有ECH配置，添加ech参数
                 if (enableECH && echConfig) {