Add owner role and admin management controls

wwwroot/js/admin-ui.js

@@ -72,6 +72,21 @@ export function renderAdminVoteStatus() {
         jokerButton.textContent = v.hasJoker ? "🎟" : t("admin.grantJokerChip");
         jokerCell.appendChild(jokerButton);
 
+        const adminCell = document.createElement("td");
+        if (v.isOwner) {
+            const ownerLabel = document.createElement("span");
+            ownerLabel.className = "muted small";
+            ownerLabel.textContent = t("admin.owner");
+            adminCell.appendChild(ownerLabel);
+        } else {
+            const adminCheckbox = document.createElement("input");
+            adminCheckbox.type = "checkbox";
+            adminCheckbox.dataset.setPlayerAdmin = v.playerId;
+            adminCheckbox.checked = !!v.isAdmin;
+            adminCheckbox.setAttribute("aria-label", t("admin.playerAdmin"));
+            adminCell.appendChild(adminCheckbox);
+        }
+
         const deleteCell = document.createElement("td");
         const deleteButton = document.createElement("button");
         deleteButton.className = "chip danger-chip";
@@ -87,6 +102,7 @@ export function renderAdminVoteStatus() {
             statusCell,
             countCell,
             jokerCell,
+            adminCell,
             deleteCell,
         );
         table.appendChild(tr);