feat: remote control 支持 auto bind 功能 (#300)

* feat: acp-link 支持 --group 参数指定 channel group

- 添加 --group CLI flag，校验格式 [a-zA-Z0-9_-]+
- 支持 ACP_RCS_GROUP 环境变量 fallback
- 传递 channelGroupId 到 RcsUpstreamClient
- 更新 README 文档说明 --group 和相关环境变量

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: RCS 后端 session 复用与 group 绑定

- storeFindEnvironmentByMachineName 匹配 offline 状态，防止重连创建重复 session
- registerEnvironment 复用已有 session 而非每次新建
- EnvironmentResponse 返回 channel_group_id 字段
- 注册时将 session 绑定到 group ID，支持 web UI 按 group 查询
- apiKeyAuth 不再设置 uuid，由 uuidAuth 统一处理

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* feat: Web UI Token Manager — 多 token 切换与 session 隔离

- 新增 useTokens hook 管理 localStorage token CRUD
- 新增 TokenManagerDialog 弹窗组件（添加/编辑/删除/切换 token）
- api client 支持Bearer token 认证，UUID 跟随 token 变化
- Navbar 添加 token 切换按钮
- 切换 token 时自动 reload，实现 session 数据隔离

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: 修复 useTokens useState 初始化函数签名错误

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

packages/remote-control-server/src/routes/v1/environments.ts

@@ -1,6 +1,7 @@
 import { Hono } from "hono";
 import { registerEnvironment, deregisterEnvironment, reconnectEnvironment } from "../../services/environment";
 import { apiKeyAuth, acceptCliHeaders } from "../../auth/middleware";
+import { storeBindSession } from "../../store";
 
 const app = new Hono();
 
@@ -9,6 +10,13 @@ app.post("/bridge", acceptCliHeaders, apiKeyAuth, async (c) => {
   const body = await c.req.json();
   const username = c.get("username");
   const result = registerEnvironment({ ...body, username });
+  // Bind ACP session to the group ID so the web UI can find it by group
+  if (result.session_id) {
+    const groupId = body.bridge_id as string | undefined;
+    if (groupId) {
+      storeBindSession(result.session_id, groupId);
+    }
+  }
   return c.json(result, 200);
 });