Add click-to-edit pattern across all admin tables

Replace Actions columns with clickable rows that open edit modals
directly. Delete is now an inline two-step confirm button in the
edit modal footer. Games modal links to routes/bosses detail,
route modal links to encounters, and boss modal has an Edit Team button.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/pages/admin/AdminRuns.tsx

@@ -46,19 +46,6 @@ export function AdminRuns() {
       accessor: (r) => new Date(r.startedAt).toLocaleDateString(),
       sortKey: (r) => r.startedAt,
     },
-    {
-      header: 'Actions',
-      accessor: (r) => (
-        <div className="flex gap-2" onClick={(e) => e.stopPropagation()}>
-          <button
-            onClick={() => setDeleting(r)}
-            className="text-red-600 hover:text-red-800 dark:text-red-400 text-sm"
-          >
-            Delete
-          </button>
-        </div>
-      ),
-    },
   ]
 
   return (
@@ -73,6 +60,7 @@ export function AdminRuns() {
         isLoading={runsLoading || gamesLoading}
         emptyMessage="No runs yet."
         keyFn={(r) => r.id}
+        onRowClick={(r) => setDeleting(r)}
       />
 
       {deleting && (