Add owner role and admin management controls

wwwroot/js/app-admin-handlers.js

@@ -127,6 +127,7 @@ function setupPlayerTableActions(runSerializedRefresh) {
     const playerTable = $("admin-player-table");
     if (!playerTable) return;
     const phaseSelectSelector = "[data-set-player-phase]";
+    const adminCheckboxSelector = "[data-set-player-admin]";
 
     playerTable.addEventListener("focusin", (e) => {
         if (e.target.matches?.(phaseSelectSelector)) {
@@ -144,6 +145,25 @@ function setupPlayerTableActions(runSerializedRefresh) {
     });
 
     playerTable.addEventListener("change", async (e) => {
+        const adminCheckbox = e.target.closest(adminCheckboxSelector);
+        if (adminCheckbox) {
+            const playerId = adminCheckbox.dataset.setPlayerAdmin;
+            if (!playerId) return;
+            const previous = !adminCheckbox.checked;
+            adminCheckbox.disabled = true;
+            try {
+                await adminApi.setPlayerAdmin(playerId, adminCheckbox.checked);
+                toast(t("admin.roleUpdated"));
+                await runSerializedRefresh();
+            } catch (err) {
+                adminCheckbox.checked = previous;
+                toast(err.message, true);
+            } finally {
+                adminCheckbox.disabled = false;
+            }
+            return;
+        }
+
         const select = e.target.closest(phaseSelectSelector);
         if (!select) return;
         const playerId = select.dataset.setPlayerPhase;