diff --git a/server/proxy/deploy-brain-proxy.sh b/server/proxy/deploy-brain-proxy.sh
index 722ff589..84b56a82 100644
--- a/server/proxy/deploy-brain-proxy.sh
+++ b/server/proxy/deploy-brain-proxy.sh
@@ -171,13 +171,13 @@ EOF
     chmod 600 "$KEYS_FILE"
 
     echo ""
-    echo "  ══════════ V2密钥 (请添加到GitHub Secrets) ══════════"
-    echo "  ZY_BRAIN_PROXY_REALITY_PUBLIC_KEY=$PUBLIC_KEY"
-    echo "  ZY_BRAIN_PROXY_REALITY_SHORT_ID=$SHORT_ID"
-    echo "  ═══════════════════════════════════════════════════════"
-    echo ""
-    echo "  ⚠️ 密钥已保存到: $KEYS_FILE"
-    echo "  ⚠️ Private Key不需要添加到GitHub Secrets (已保存在服务器)"
+    echo "  ══════════ V2密钥已生成 ══════════"
+    echo "  ⚠️ 密钥已保存到: $KEYS_FILE (权限600·仅root可读)"
+    echo "  ⚠️ 如需查看密钥，请SSH到服务器执行: cat $KEYS_FILE"
+    echo "  ⚠️ 部署完成后，将公钥和ShortID添加到GitHub Secrets:"
+    echo "     ZY_BRAIN_PROXY_REALITY_PUBLIC_KEY"
+    echo "     ZY_BRAIN_PROXY_REALITY_SHORT_ID"
+    echo "  ═══════════════════════════════════"
 }
 
 # ── 部署V2服务代码 ────────────────────────────
diff --git a/server/proxy/service/subscription-server-v2.js b/server/proxy/service/subscription-server-v2.js
index 8c9a77b0..d8c6bd10 100644
--- a/server/proxy/service/subscription-server-v2.js
+++ b/server/proxy/service/subscription-server-v2.js
@@ -27,6 +27,7 @@ const PORT = process.env.ZY_PROXY_V2_PORT || 3803;
 const PROXY_DIR = process.env.ZY_BRAIN_PROXY_DIR || '/opt/zhuyuan-brain/proxy';
 const DATA_DIR = path.join(PROXY_DIR, 'data');
 const KEYS_FILE = path.join(PROXY_DIR, '.env.keys');
+const LIVE_NODES_FRESHNESS_MS = parseInt(process.env.ZY_CLOUD_HB_EXPIRY_MS || '600000', 10);
 
 // 引入用户管理器
 const userManager = require('./user-manager');
@@ -80,9 +81,9 @@ function buildVpnNodes() {
   const liveNodesFile = path.join(DATA_DIR, 'nodes-live.json');
   try {
     const liveData = JSON.parse(fs.readFileSync(liveNodesFile, 'utf8'));
-    // 检查数据是否新鲜（5分钟内）
+    // 检查数据是否新鲜（使用与ZY-CLOUD相同的心跳过期阈值）
     const age = Date.now() - new Date(liveData.updated_at).getTime();
-    if (age < 10 * 60 * 1000 && liveData.nodes && liveData.nodes.length > 0) {
+    if (age < LIVE_NODES_FRESHNESS_MS * 2 && liveData.nodes && liveData.nodes.length > 0) {
       return liveData.nodes;
     }
   } catch { /* ZY-CLOUD未运行，回退到静态配置 */ }
diff --git a/server/proxy/service/user-manager.js b/server/proxy/service/user-manager.js
index b736a623..8e41351c 100644
--- a/server/proxy/service/user-manager.js
+++ b/server/proxy/service/user-manager.js
@@ -120,6 +120,7 @@ function addUser(email, options = {}) {
     throw new Error(`用户已存在: ${email} (UUID: ${existing.uuid.substring(0, 8)}...)`);
   }
 
+  const now = new Date();
   const user = {
     email,
     uuid: generateUUID(),
@@ -127,11 +128,11 @@ function addUser(email, options = {}) {
     label: options.label || email.split('@')[0],
     quota_bytes: (options.quota_gb || 500) * 1024 * 1024 * 1024,
     enabled: true,
-    created_at: new Date().toISOString(),
+    created_at: now.toISOString(),
     traffic: {
       upload_bytes: 0,
       download_bytes: 0,
-      period: `${new Date().getFullYear()}-${String(new Date().getMonth() + 1).padStart(2, '0')}`,
+      period: `${now.getFullYear()}-${String(now.getMonth() + 1).padStart(2, '0')}`,
       alerts_sent: { p80: false, p90: false, p100: false }
     }
   };
diff --git a/server/proxy/service/vpn-worker.js b/server/proxy/service/vpn-worker.js
index e7790c81..42a12416 100644
--- a/server/proxy/service/vpn-worker.js
+++ b/server/proxy/service/vpn-worker.js
@@ -66,19 +66,16 @@ function parseConfig() {
   };
 }
 
-// ── 自动检测本机公网IP ──────────────────────
+// ── 自动检测本机IP ──────────────────────────
 function getPublicIp() {
-  try {
-    return execSync("hostname -I | awk '{print $1}'", { encoding: 'utf8', timeout: 3000 }).trim();
-  } catch {
-    const nets = os.networkInterfaces();
-    for (const ifaces of Object.values(nets)) {
-      for (const iface of ifaces) {
-        if (!iface.internal && iface.family === 'IPv4') return iface.address;
-      }
+  // 优先使用Node.js原生API（安全）
+  const nets = os.networkInterfaces();
+  for (const ifaces of Object.values(nets)) {
+    for (const iface of ifaces) {
+      if (!iface.internal && iface.family === 'IPv4') return iface.address;
     }
-    return '0.0.0.0';
   }
+  return '0.0.0.0';
 }
 
 // ── 自动检测本机配置 ────────────────────────
diff --git a/server/proxy/service/zy-cloud-vpn.js b/server/proxy/service/zy-cloud-vpn.js
index 9ab72b75..76bba807 100644
--- a/server/proxy/service/zy-cloud-vpn.js
+++ b/server/proxy/service/zy-cloud-vpn.js
@@ -37,10 +37,12 @@ const REGISTRY_FILE = path.join(DATA_DIR, 'nodes-registry.json');
 const HEARTBEAT_FILE = path.join(DATA_DIR, 'zy-cloud-vpn-heartbeat.json');
 const KEYS_FILE = path.join(PROXY_DIR, '.env.keys');
 
-// ── 时间间隔 ────────────────────────────────
-const HEARTBEAT_INTERVAL = 30 * 1000;      // 30秒心跳
-const DIAGNOSE_INTERVAL = 5 * 60 * 1000;   // 5分钟诊断
-const LEARN_INTERVAL = 30 * 60 * 1000;     // 30分钟学习周期
+// ── 时间间隔（可通过环境变量调整）────────────
+const HEARTBEAT_INTERVAL = parseInt(process.env.ZY_CLOUD_HEARTBEAT_INTERVAL || '30000', 10);
+const DIAGNOSE_INTERVAL = parseInt(process.env.ZY_CLOUD_DIAGNOSE_INTERVAL || '300000', 10);
+const LEARN_INTERVAL = parseInt(process.env.ZY_CLOUD_LEARN_INTERVAL || '1800000', 10);
+const HEARTBEAT_EXPIRY_MS = parseInt(process.env.ZY_CLOUD_HB_EXPIRY_MS || '600000', 10);      // 10分钟
+const NODE_UNREGISTER_MS = parseInt(process.env.ZY_CLOUD_UNREGISTER_MS || '86400000', 10);     // 24小时
 
 // ═══════════════════════════════════════════════
 //  LivingModule 基类
@@ -273,7 +275,8 @@ class ZyCloudVpn extends LivingModule {
     const brainPbk = this._readEnvOrKey('ZY_PROXY_REALITY_PUBLIC_KEY');
     const brainSid = this._readEnvOrKey('ZY_PROXY_REALITY_SHORT_ID');
     if (brainHost && brainPbk) {
-      nodes.push(this._makeNode('zy-brain-sg1', '🧠 铸渊专线V2-SG1(大脑)', brainHost, 443, brainPbk, brainSid, 'sg-zone1', 'ZY-SVR-005', 'local', '4核8G'));
+      const localSpecs = `${require('os').cpus().length}核${Math.round(require('os').totalmem() / (1024 ** 3))}G`;
+      nodes.push(this._makeNode('zy-brain-sg1', '🧠 铸渊专线V2-SG1(大脑)', brainHost, 443, brainPbk, brainSid, 'sg-zone1', 'ZY-SVR-005', 'local', localSpecs));
       seenIds.add('zy-brain-sg1');
     }
 
@@ -299,14 +302,14 @@ class ZyCloudVpn extends LivingModule {
     for (const regNode of Object.values(this._registry.nodes)) {
       if (seenIds.has(regNode.id)) continue;  // 避免重复
 
-      // 检查心跳是否过期（超过10分钟无心跳 → 自动注销）
+      // 检查心跳是否过期
       const lastHb = new Date(regNode.last_heartbeat).getTime();
       const age = Date.now() - lastHb;
-      if (age > 10 * 60 * 1000) {
+      if (age > HEARTBEAT_EXPIRY_MS) {
         console.log(`[ZY-CLOUD VPN] ⏰ 节点 ${regNode.name} 心跳过期(${Math.floor(age/60000)}分钟)，标记为离线`);
         // 不删除注册，只是标记离线（可能临时断网）
         // 超过24小时无心跳才自动清理
-        if (age > 24 * 60 * 60 * 1000) {
+        if (age > NODE_UNREGISTER_MS) {
           console.log(`[ZY-CLOUD VPN] 🗑️ 节点 ${regNode.name} 超24小时无心跳，自动注销`);
           delete this._registry.nodes[regNode.id];
           this._saveRegistry();