fix(qq): stop flashing the status frame during tool runs

The shared Harness client emits a '正在整理结果…' status update after
every tool/result. Pushing each one into the QQ stream message made
multi-tool turns repeatedly flash that notice instead of showing real
progress. Skip status frames in the QQ onUpdate handler so the stream
keeps the last meaningful frame (tool name or generated text), which
matches the official dsh-qqbot behaviour of not pushing tool-noise.

src/channels/qq/qq-bridge.mjs

@@ -619,11 +619,13 @@ export class QqHarnessBridge {
             signal: this.#signal,
             control: { owner: this, key },
             onUpdate: stream ? async (update) => {
+              // status 帧（如工具结束后的“正在整理结果…”）不推送：
+              // 保持上一帧（工具名或已生成文本），避免中间过程反复闪提示。
               const progress = update.type === 'text'
                 ? update.text
                 : update.type === 'tool'
                   ? `正在使用${update.name}…`
-                  : update.text;
+                  : null;
               if (progress) await stream.update(progress);
             } : undefined,
             onInteraction: (interaction) => this.#handleInteraction(interaction, {