feat(goal): TG /goal 指令进入目标模式

- 复用宿主命令运行时（commands.execute，与 Web 端 /goal 同通道），不依赖
  GUI 连接：command-goal 在宿主侧操作 session-log 支撑的 goals 域
- 语法与 Web 完全一致：/goal <目标>、/goal（查看）、clear/edit/pause/resume
- 目标状态变更（blocked/complete）实时推送 TG 通知，手机可感知目标模式进展
- 配置侧启用 command-goal（plugin_toggle，已 live 生效）

src/bridge.ts

@@ -334,6 +334,7 @@ export class TelegramBridge {
       { command: 'model', description: '切换当前绑定会话的模型' },
       { command: 'status', description: '会话状态：模型/上下文/统计（首token/速率/tokens）' },
       { command: 'compact', description: '压缩当前会话历史（缩短上下文，空闲时执行）' },
+      { command: 'goal', description: '目标模式：/goal <目标>（clear/edit/pause/resume 管理）' },
       { command: 'rich', description: '渲染：on 富文本 / off HTML 兼容（本聊天，需新版客户端）' },
       { command: 'unbind', description: '断开手机绑定（不关闭本机会话）' },
       { command: 'stop', description: '中止当前正在运行的任务' },
@@ -451,6 +452,9 @@ export class TelegramBridge {
       case 'compact':
         await this.requestCompact(chatId)
         return
+      case 'goal':
+        await this.requestGoal(chatId, (parsed as { arg?: string }).arg)
+        return
       case 'rich':
         await this.handleRichCommand(chatId, parsed.arg)
         return
@@ -1050,6 +1054,41 @@ export class TelegramBridge {
     })
   }
 
+  /**
+   * TG /goal —— 走宿主命令运行时（commands.execute），与 Web 端 /goal 完全同一条
+   * 通道：command-goal 在宿主侧操作 session-log 支撑的 goals 域，不依赖 GUI 连接。
+   */
+  private async requestGoal(chatId: number, arg?: string): Promise<void> {
+    const binding = this.bindings.get(String(chatId))
+    if (!binding) {
+      await this.client.sendMessage(chatId, MSG.NEED_BIND)
+      return
+    }
+    const agent = await this.ensureLiveAgent(binding.sessionId)
+    if (!agent) {
+      this.bindings.delete(String(chatId))
+      await this.client.sendMessage(chatId, MSG.GONE)
+      return
+    }
+    const commands = this.serviceOf<CommandsRuntimeLike>('commands')
+    if (!commands?.execute || typeof commands.find !== 'function' || !commands.find(agent, 'goal')) {
+      await this.client.sendMessage(chatId, '当前环境不支持 /goal（command-goal 未装配）')
+      return
+    }
+    const line = `/goal${arg ? ` ${arg}` : ''}`
+    try {
+      const execution = await commands.execute(agent as never, line, [], new AbortController().signal)
+      if (execution === undefined) {
+        await this.client.sendMessage(chatId, '/goal 未执行：命令在运行时已注销')
+        return
+      }
+      const text = execution.result?.text ?? (execution.result?.kind === 'success' ? '完成' : '失败')
+      await this.client.sendMessage(chatId, text.slice(0, 3500))
+    } catch (err) {
+      await this.client.sendMessage(chatId, `/goal 执行失败：${this.redact(err).slice(0, 200)}`)
+    }
+  }
+
   /** 等待压缩落定并汇报结果（不阻塞轮询循环）。 */
   private async runCompaction(
     chatId: number,
@@ -1367,6 +1406,23 @@ export class TelegramBridge {
       return
     }
 
+    // 'goal/changed' 不在本插件的 SessionEvent 类型联合内，宽松断言读取。
+    const eventType = (event as { type: string }).type
+    if (eventType === 'goal/changed') {
+      // Goal mode lives on the phone too: surface phase transitions (blocked/complete
+      // especially) without waiting for the next assistant text.
+      const data = (event as { data?: { phase?: string; blockedReason?: { code?: string; message?: string } } }).data
+      const phase = data?.phase
+      if (phase === 'blocked' || phase === 'complete') {
+        const reason = data?.blockedReason
+        const label = phase === 'blocked'
+          ? `目标被阻塞${reason ? `：${reason.code ?? ''} ${reason.message ?? ''}`.slice(0, 120) : ''}`
+          : '目标已达成 ✓'
+        for (const b of targets) this.enqueueNotice(b.chatId, `> ${label}`)
+      }
+      return
+    }
+
     if (event.type === 'todo/write') {
       const todos = Array.isArray(event.data?.todos) ? event.data.todos : []
       this.lastTodos.set(id, todos as Array<{ content?: string; status?: string }>)