feat: support compact command across IM channels

src/channels/qq/qq-bridge.mjs

@@ -1,4 +1,5 @@
 import { runWorkspaceCommand } from '../shared/workspace-command.mjs';
+import { runCompactCommand } from '../shared/compact-command.mjs';
 import {
   harnessAnswerForQuestion,
   harnessQuestionText,
@@ -14,6 +15,7 @@ const HELP_TEXT = [
   '',
   '直接发送文字即可继续当前会话。',
   '/new  开启一个全新会话',
+  '/compact  压缩当前会话的较早上下文',
   '/workspace 工作区绝对路径  切换工作区',
   '/workspacelist  列出工作区绝对路径',
   '/sessionlist [工作区序号或绝对路径]  列出会话 ID 和标题',
@@ -241,6 +243,18 @@ export class QqHarnessBridge {
         await this.#state.markSeen(messageId);
         return;
       }
+      const compactCommand = await runCompactCommand(
+        text,
+        this.#harness,
+        this.#state,
+        key,
+        { signal: this.#signal },
+      );
+      if (compactCommand) {
+        await this.#bot.sendText(target, compactCommand.message);
+        await this.#state.markSeen(messageId);
+        return;
+      }
 
       let stream = null;
       let streamFinished = false;