fix: platform_silent记忆提取 + 群聊上下文整合 + 多QQ实例支持

- platform_silent模式接入Orchestrator记忆提取：被动观察群聊时提取值得记住的信息到对应命名空间
- post_chat后台思考注入平台观察：对话后思考也能看到群聊摘要
- QQ适配器：OneBot v11 self_id动态捕获、CQ图片URL提取、视觉+OCR并行处理
- Router解耦：ConfigName/PlatformName分离，支持多QQ实例独立连接
- 黑白名单功能：后端API + Ethend代理 + UI面板
- \n\n双换行断句：AI回复按双换行分割为多条消息按间隔发送
- @提及修复：bot自感知UID进行@检测
- 群聊上下文共享：channel-based userID避免记忆碎片化
- 消息日志显示处理后内容而非原始SSE数据
- platform-bridge Dockerfile + docker-compose.yml更新

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

backend/platform-bridge/internal/logging/logger.go

@@ -25,11 +25,23 @@ type LogEntry struct {
 	Error       string    `json:"error,omitempty"`
 }
 
+// LogListener receives log entries as they are written.
+type LogListener func(LogEntry)
+
 // Logger writes message logs to per-platform JSONL files.
 type Logger struct {
-	mu    sync.Mutex
-	dir   string
-	files map[string]*os.File
+	mu        sync.Mutex
+	dir       string
+	files     map[string]*os.File
+	listeners []LogListener
+}
+
+// OnLog registers a listener that is called for every log entry written.
+// The listener is called synchronously; avoid heavy work in the callback.
+func (l *Logger) OnLog(fn LogListener) {
+	l.mu.Lock()
+	defer l.mu.Unlock()
+	l.listeners = append(l.listeners, fn)
 }
 
 // NewLogger creates a Logger, ensuring the log directory exists.
@@ -60,12 +72,23 @@ func (l *Logger) Log(entry LogEntry) error {
 	}
 
 	l.mu.Lock()
-	defer l.mu.Unlock()
-
 	if _, err := f.Write(append(data, '\n')); err != nil {
+		l.mu.Unlock()
 		return fmt.Errorf("write log: %w", err)
 	}
-	return f.Sync()
+	if err := f.Sync(); err != nil {
+		l.mu.Unlock()
+		return err
+	}
+	listeners := make([]LogListener, len(l.listeners))
+	copy(listeners, l.listeners)
+	l.mu.Unlock()
+
+	// Notify listeners outside the lock.
+	for _, fn := range listeners {
+		fn(entry)
+	}
+	return nil
 }
 
 // ReadLogs reads the last N log entries for a platform, newest first.