feat: add party-size queueing and call modes

web/src/pages/VisitorPhonePage.tsx

@@ -75,7 +75,7 @@ export function VisitorPhonePage() {
 
   function returnToLookup() {
     clearStoredPhone();
-    navigate("/visitor");
+    navigate("/visitor", { state: { activeTab: "lookup" } });
   }
 
   const liveTone = resource.offline ? "offline" : stale || resource.error ? "stale" : "live";
@@ -91,6 +91,9 @@ export function VisitorPhonePage() {
         <span className={`visitor-header__meta visitor-header__meta--${liveTone}`}><i aria-hidden="true" />{liveLabel}</span>
       </header>
       <div className="visitor-content">
+        <button className="button button--ghost visitor-status-back" type="button" onClick={returnToLookup}>
+          <span aria-hidden="true">←</span>返回查号
+        </button>
         {!phone ? (
           <FeedbackBanner tone="warning" title="查询会话已失效" action={<button className="button button--secondary button--small" onClick={returnToLookup}>重新查询</button>}>
             请返回输入手机号后再次查询。
@@ -146,7 +149,7 @@ export function VisitorPhonePage() {
                             >
                               <span>{ticket.project_name}</span>
                               <strong>{ticket.ticket_number}</strong>
-                              <small>{statusMeta.label}</small>
+                              <small>{ticket.party_size} 人 · {statusMeta.label}</small>
                             </button>
                           </div>
                         );
@@ -156,7 +159,6 @@ export function VisitorPhonePage() {
                 ) : null}
                 {selectedTicket ? <VisitorTicketCard data={selectedTicket} lastUpdatedAt={freshnessTime} /> : null}
                 <button className="button button--secondary visitor-refresh" onClick={resource.refresh}>刷新状态</button>
-                <button className="button button--ghost visitor-refresh" onClick={returnToLookup}>查询其他手机号</button>
                 <p className="visitor-trust">排队数据会自动更新，现场以工作人员指引为准。</p>
               </>
             )}