fix: 死锁修复、管理员权限集中管控、群聊频率控制、表情映射修复

thinker.go: 移除所有 defer t.muUnlock() 持锁跨阻塞调用的模式，消除8处死锁点
- performThink: defer→立即解锁，LLM调用不再持锁
- lightThinkLoop: defer在for循环内→第2次迭代自死锁
- resetSilenceTimer: defer持锁调performThink
- UpdatePresence: defer持锁调time.Sleep+performThink
- storeThought: defer+panic→锁泄露; 移除extractProactiveMessage嵌套锁

is_admin三层防御:
- synthesizer: 系统提示词注入管理员/非管理员身份标签
- iot_provider: 非管理员直接拒绝IoT操作
- plugin-manager: ToolDefinition.AdminOnly自动拦截，集中管控

群聊优化:
- group_ambient: 强化审查指令，【不发送】自审查标签
- 群聊间隔4s→3s，最多2条/轮
- 工具失败也推跟进消息，避免沉默

平台桥接:
- 日志文件名使用适配器唯一标识符(ConfigName)
- QQ表情映射替换为官方116条目数据
- CQ表情保留名称/ID

ethend/public/index.html

@@ -3584,8 +3584,7 @@ function handleChatLog(entry) {
   if (STATE.activePanel === 'chatPlatforms' && STATE.chatActivePlatform) {
     // Check if the entry's platform matches the active config's platform type.
     var activeCfg = (STATE.chatConfigs || []).find(function(c) { return c.name === STATE.chatActivePlatform; }) || null;
-    var activePtype = (activeCfg && activeCfg.platform) || STATE.chatActivePlatform;
-    if (entry.platform === activePtype) {
+    if (entry.platform === STATE.chatActivePlatform || (activeCfg && entry.platform === activeCfg.platform)) {
       prependChatLogEntry(entry);
     }
   }

ethend/src/index.js

@@ -1934,27 +1934,31 @@ server.listen(ETHEND_PORT, () => {
 });
 
 // readBridgeLogs 从磁盘读取 platform-bridge 的 JSONL 日志文件
+// 动态扫描目录中的所有 .log 文件，合并后按时间排序取最近 limit 条
 function readBridgeLogs(limit) {
   const bridgeLogDir = path.join(ROOT, 'backend', 'platform-bridge', 'logs');
-  const logFiles = ['obv11-main.log', 'obv11.log']; // 新旧平台名都试试
   const entries = [];
-  for (const name of logFiles) {
-    const logPath = path.join(bridgeLogDir, name);
-    if (!fs.existsSync(logPath)) continue;
-    try {
-      const content = fs.readFileSync(logPath, 'utf-8');
-      const lines = content.trim().split('\n');
-      // 取最后 limit 行
-      const recent = lines.slice(-limit);
-      for (const line of recent) {
-        try {
-          entries.push(JSON.parse(line));
-        } catch { /* skip bad lines */ }
-      }
-      break; // 优先用第一个找到的文件
-    } catch { /* skip */ }
-  }
-  return entries.slice(-limit);
+  if (!fs.existsSync(bridgeLogDir)) return entries;
+  try {
+    const allFiles = fs.readdirSync(bridgeLogDir);
+    const logFiles = allFiles.filter(f => f.endsWith('.log')).sort();
+    // 从每个日志文件取最近的部分行
+    const perFile = Math.max(1, Math.ceil(limit / Math.max(1, logFiles.length)));
+    for (const name of logFiles) {
+      const logPath = path.join(bridgeLogDir, name);
+      try {
+        const content = fs.readFileSync(logPath, 'utf-8');
+        const lines = content.trim().split('\n');
+        const recent = lines.slice(-perFile);
+        for (const line of recent) {
+          try { entries.push(JSON.parse(line)); } catch { /* skip bad lines */ }
+        }
+      } catch { /* skip */ }
+    }
+  } catch { /* skip */ }
+  // 按时间戳降序排列，取最近 limit 条
+  entries.sort((a, b) => new Date(b.timestamp || 0) - new Date(a.timestamp || 0));
+  return entries.slice(0, limit);
 }
 
 // 时间格式化：使用系统本地时区