Switch Docker update tracking to Portainer API (all endpoints)

src/components/widgets/DockerUpdatesWidget.tsx

@@ -6,6 +6,7 @@ interface ContainerInfo {
   tag: string
   upToDate: boolean | null
   registry: string
+  endpoint: string
 }
 
 export function DockerUpdatesWidget() {
@@ -45,10 +46,10 @@ export function DockerUpdatesWidget() {
         <div className="progress-group">
           {containers.map(c => (
             <div key={c.name} className="list-item">
-              <div className="list-item-left">
+              <div className="list-item-left" style={{ flexDirection: 'column', alignItems: 'flex-start', gap: 2 }}>
                 <span>{c.name}</span>
                 <span style={{ fontFamily: 'JetBrains Mono, monospace', fontSize: 10, color: 'var(--muted)' }}>
-                  {c.image}:{c.tag}
+                  {c.image}:{c.tag} · {c.endpoint}
                 </span>
               </div>
               {c.registry !== 'docker.io' ? (