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/handler/log_ws.go

@@ -0,0 +1,86 @@
+package handler
+
+import (
+	"encoding/json"
+	"net/http"
+	"sync"
+
+	"github.com/gorilla/websocket"
+
+	"git.yeij.top/AskaEth/Cyrene/platform-bridge/internal/logging"
+)
+
+var wsUpgrader = websocket.Upgrader{
+	CheckOrigin: func(r *http.Request) bool { return true },
+}
+
+// LogWSHub broadcasts log entries to connected WebSocket clients.
+type LogWSHub struct {
+	mu      sync.Mutex
+	clients map[*websocket.Conn]chan logging.LogEntry
+}
+
+// NewLogWSHub creates a LogWSHub and subscribes to the logger.
+func NewLogWSHub(logger *logging.Logger) *LogWSHub {
+	h := &LogWSHub{
+		clients: make(map[*websocket.Conn]chan logging.LogEntry),
+	}
+	logger.OnLog(func(entry logging.LogEntry) {
+		h.broadcast(entry)
+	})
+	return h
+}
+
+func (h *LogWSHub) broadcast(entry logging.LogEntry) {
+	h.mu.Lock()
+	defer h.mu.Unlock()
+	for _, ch := range h.clients {
+		select {
+		case ch <- entry:
+		default:
+		}
+	}
+}
+
+// ServeWS handles WebSocket upgrade and streams log entries to the client.
+func (h *LogWSHub) ServeWS(w http.ResponseWriter, r *http.Request) {
+	conn, err := wsUpgrader.Upgrade(w, r, nil)
+	if err != nil {
+		return
+	}
+
+	ch := make(chan logging.LogEntry, 64)
+	h.mu.Lock()
+	h.clients[conn] = ch
+	h.mu.Unlock()
+
+	// Write goroutine: drains ch until it is closed.
+	done := make(chan struct{})
+	go func() {
+		defer close(done)
+		for entry := range ch {
+			data, _ := json.Marshal(entry)
+			if err := conn.WriteMessage(websocket.TextMessage, data); err != nil {
+				return
+			}
+		}
+	}()
+
+	// Read goroutine: detect client disconnect.
+	// (websocket requires a reader to detect close frames.)
+	go func() {
+		for {
+			if _, _, err := conn.ReadMessage(); err != nil {
+				break
+			}
+		}
+		// Client disconnected — stop broadcasting, close channel.
+		h.mu.Lock()
+		delete(h.clients, conn)
+		h.mu.Unlock()
+		close(ch)
+	}()
+
+	<-done
+	conn.Close()
+}