Improve server picker health state handling and bump Harbor versions

src/shared/versions.js

@@ -1,6 +1,6 @@
 export const HARBOR_VERSIONS = Object.freeze({
-  macClient: '0.7.19',
-  gatewayClient: '0.7.19',
+  macClient: '0.7.20',
+  gatewayClient: '0.7.20',
   gatewayBackend: '0.7.1',
 });
 

src/web/components/ServerPicker.jsx

@@ -36,11 +36,15 @@ function readAuto() {
   }
 }
 
+function serverHealthText(ping) {
+  if (ping?.checking) return 'Проверяем TCP…';
+  if (ping?.error) return 'Проверка недоступна';
+  if (ping?.ok) return `TCP ${ping.latency} мс`;
+  return ping ? 'TCP недоступен' : 'Не проверен';
+}
+
 function ServerRow({ server, selected, favorite, ping, disabled, index, onSelect, onFavorite }) {
-  const health = ping?.checking
-    ? 'Проверяем TCP…'
-    : ping?.error ? 'Проверка недоступна'
-      : ping?.ok ? `TCP ${ping.latency} мс` : ping ? 'TCP недоступен' : 'Не проверен';
+  const health = serverHealthText(ping);
 
   return <div className={`client-server-row${selected ? ' is-selected' : ''}${onFavorite ? ' has-favorite' : ''}`}>
     <button
@@ -212,6 +216,7 @@ export function ServerPicker({
                 key={server.id}
                 server={server}
                 selected={server.id === selectedServerId}
+                ping={pings[server.id]}
                 disabled={disabled}
                 index={index}
                 onSelect={select}
@@ -250,7 +255,7 @@ export function ServerPicker({
                 key={id}
                 onClick={() => setView(id)}
               >{label}</button>)}
-              <button type="button" disabled={checking || !visible.length} onClick={checkVisible}>
+              <button type="button" disabled={checking || (!selectedServerId && !visible.length)} onClick={checkVisible}>
                 {checking ? 'Проверяем…' : 'Проверить TCP'}
               </button>
             </div>
@@ -265,7 +270,9 @@ export function ServerPicker({
               onClick={() => select(autoServer(servers)?.id, true)}
             >
               <strong>Auto</strong>
-              <small>Первый стабильный сервер</small>
+              <small title={pings[selectedServerId]?.checkedAt || undefined}>
+                {autoActive ? serverHealthText(pings[selectedServerId]) : 'Первый стабильный сервер'}
+              </small>
             </button>
             {selected && !autoActive && <ServerRow
               server={selected}