feat(channels/qq_obv11): OneBot v11 渠道插件（正/反 WS 双模式 + CQ 媒体 + 限频，stdlib 自研 WS）

plugins/channels/qq_obv11/ws_client.go

@@ -0,0 +1,42 @@
+package qq_obv11
+
+// This file implements the client role of the OneBot v11 WebSocket channel: the
+// adapter dials out to a OneBot (正向) WebSocket endpoint, authenticating with
+// an access token when configured.
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"net/url"
+	"strings"
+)
+
+// connectClient dials the configured OneBot WebSocket endpoint and installs the
+// resulting connection as the active session.
+func (a *Adapter) connectClient(ctx context.Context) error {
+	if a.cfg.RemoteURL == "" {
+		return errors.New("qq-obv11: client mode requires remoteURL")
+	}
+	target := appendQueryToken(a.cfg.RemoteURL, a.cfg.AccessToken)
+	conn, err := dialWS(ctx, a.cfg.DialContext, target, a.cfg.AccessToken)
+	if err != nil {
+		return fmt.Errorf("qq-obv11: dial onebot ws %s: %w", a.cfg.RemoteURL, err)
+	}
+	a.setConn(conn)
+	a.log.Info("connected to onebot ws (client mode)", "url", a.cfg.RemoteURL)
+	return nil
+}
+
+// appendQueryToken adds an access_token query parameter to a URL, preserving any
+// existing query string.
+func appendQueryToken(rawURL, token string) string {
+	if token == "" {
+		return rawURL
+	}
+	sep := "?"
+	if strings.Contains(rawURL, "?") {
+		sep = "&"
+	}
+	return rawURL + sep + "access_token=" + url.QueryEscape(token)
+}