feat: bind bot chats to existing harness sessions

src/channels/weixin/harness-client.mjs

@@ -2,6 +2,8 @@ import { spawn } from 'node:child_process';
 import { randomUUID } from 'node:crypto';
 import { isAbsolute } from 'node:path';
 
+import { adoptRegisteredWorkspaceSession } from '../shared/harness-session-binding.mjs';
+
 const sleep = (ms) => new Promise((resolve) => setTimeout(resolve, ms));
 
 function workspacePaths(value) {
@@ -250,6 +252,10 @@ export class HarnessClient {
     return workspaceSessions(workspace, workspaceList.archivedSessionIds, sessionList);
   }
 
+  async adoptWorkspaceSession(value, options = {}) {
+    return adoptRegisteredWorkspaceSession(this, value, options);
+  }
+
   async workspaceId(options = {}) {
     const workspace = options.workspace ?? this.#workspace;
     const { items } = await this.rpc('workspace.list', {});

src/channels/weixin/weixin-bridge.mjs

@@ -14,6 +14,7 @@ const HELP_TEXT = [
   '/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',
+  '/session Session ID  将当前聊天绑定到指定会话',
   '/status  检查连接状态',
   '/help  显示本帮助',
 ].join('\n');
@@ -121,6 +122,7 @@ export class WeixinHarnessBridge {
       }
 
       const command = text.trim().toLowerCase();
+      const key = conversationKey(sender);
       if (command === '/help') {
         await this.#send(sender, HELP_TEXT, contextToken, runId);
         await this.#state.markSeen(messageId);
@@ -133,12 +135,12 @@ export class WeixinHarnessBridge {
         return;
       }
       if (command === '/new') {
-        await this.#state.clearSession(conversationKey(sender));
+        await this.#state.clearSession(key);
         await this.#send(sender, '已开启新会话。请发送你的问题。', contextToken, runId);
         await this.#state.markSeen(messageId);
         return;
       }
-      const workspaceCommand = await runWorkspaceCommand(text, this.#harness);
+      const workspaceCommand = await runWorkspaceCommand(text, this.#harness, key);
       if (workspaceCommand) {
         for (const reply of workspaceCommand.messages ?? [workspaceCommand.message]) {
           await this.#send(sender, reply, contextToken, runId);
@@ -147,7 +149,6 @@ export class WeixinHarnessBridge {
         return;
       }
 
-      const key = conversationKey(sender);
       const { answer } = await askInWorkspaceSession({
         harness: this.#harness,
         state: this.#state,