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>

---------

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

packages/remote-control-server/web/src/components/Navbar.tsx

@@ -1,14 +1,16 @@
 import { cn } from "../lib/utils";
 import { ThemeToggle } from "../../components/ui/theme-toggle";
-import { ChevronLeft, LayoutGrid, UserPlus } from "lucide-react";
+import { ChevronLeft, LayoutGrid, UserPlus, KeyRound } from "lucide-react";
 
 interface NavbarProps {
   onIdentityClick: () => void;
+  onTokenClick: () => void;
+  activeTokenLabel?: string | null;
   sessionTitle?: string;
   onBack?: () => void;
 }
 
-export function Navbar({ onIdentityClick, sessionTitle, onBack }: NavbarProps) {
+export function Navbar({ onIdentityClick, onTokenClick, activeTokenLabel, sessionTitle, onBack }: NavbarProps) {
   return (
     <nav className="sticky top-0 z-40 border-b border-border bg-surface-1/80 backdrop-blur-md">
       <div className="mx-auto flex h-11 sm:h-12 max-w-5xl items-center justify-between px-3 sm:px-4">
@@ -51,6 +53,19 @@ export function Navbar({ onIdentityClick, sessionTitle, onBack }: NavbarProps) {
             </a>
           )}
           <ThemeToggle />
+          <button
+            onClick={onTokenClick}
+            className={cn(
+              "flex items-center gap-1 rounded-md px-2 sm:px-3 py-1.5 text-sm transition-colors",
+              activeTokenLabel
+                ? "bg-brand/10 text-brand hover:bg-brand/20"
+                : "text-text-secondary hover:bg-surface-2 hover:text-text-primary"
+            )}
+            title="Token Manager"
+          >
+            <KeyRound className="h-4 w-4" />
+            <span className="hidden sm:inline max-w-24 truncate">{activeTokenLabel || "No Token"}</span>
+          </button>
           <button
             onClick={onIdentityClick}
             className="flex items-center gap-1 rounded-md px-2 sm:px-3 py-1.5 text-sm text-text-secondary hover:bg-surface-2 hover:text-text-primary transition-colors"