Add automatic cluster pool allocation.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/app/dashboard/admin/pools/page.tsx

@@ -16,8 +16,10 @@ export default function AdminPoolsPage() {
   const [form, setForm] = useState({
     name: '',
     description: '',
-    strategy: 'least-apps' as 'least-apps' | 'round-robin',
+    strategy: 'weighted-resource' as 'least-apps' | 'round-robin' | 'weighted-resource',
     clusterIds: [] as string[],
+    isDefault: false,
+    priority: 100,
   });
 
   const { data: pools = [], isLoading } = useQuery<ClusterPool[]>({
@@ -66,7 +68,7 @@ export default function AdminPoolsPage() {
   const resetForm = () => {
     setShowForm(false);
     setEditingPool(null);
-    setForm({ name: '', description: '', strategy: 'least-apps', clusterIds: [] });
+    setForm({ name: '', description: '', strategy: 'weighted-resource', clusterIds: [], isDefault: false, priority: 100 });
   };
 
   const startEdit = (pool: ClusterPool) => {
@@ -76,6 +78,8 @@ export default function AdminPoolsPage() {
       description: pool.description || '',
       strategy: pool.strategy,
       clusterIds: pool.clusterIds,
+      isDefault: pool.isDefault || false,
+      priority: pool.priority || 100,
     });
     setShowForm(true);
   };
@@ -138,10 +142,21 @@ export default function AdminPoolsPage() {
                 value={form.strategy}
                 onChange={(e) => setForm({ ...form, strategy: e.target.value as any })}
               >
+                <option value="weighted-resource">Weighted Resource — prefer healthy capacity and higher weights</option>
                 <option value="least-apps">Least Apps — deploy to cluster with fewest apps</option>
                 <option value="round-robin">Round Robin — rotate across clusters evenly</option>
               </select>
             </div>
+            <div>
+              <label className="block text-sm font-medium text-gray-700 mb-1">Priority</label>
+              <input
+                type="number"
+                min={1}
+                className="input-field"
+                value={form.priority}
+                onChange={(e) => setForm({ ...form, priority: Number(e.target.value) || 100 })}
+              />
+            </div>
           </div>
 
           <div>
@@ -154,6 +169,15 @@ export default function AdminPoolsPage() {
             />
           </div>
 
+          <label className="flex items-center gap-2 text-sm text-gray-700">
+            <input
+              type="checkbox"
+              checked={form.isDefault}
+              onChange={(e) => setForm({ ...form, isDefault: e.target.checked })}
+            />
+            Use as default allocator pool
+          </label>
+
           {/* Cluster selection */}
           <div>
             <label className="block text-sm font-medium text-gray-700 mb-2">
@@ -195,7 +219,7 @@ export default function AdminPoolsPage() {
                               )}
                             </p>
                             <p className="text-xs text-gray-500">
-                              {cluster.provider || 'Unknown'} · {cluster.region || 'N/A'}
+                              {cluster.provider || 'Unknown'} · {cluster.region || 'N/A'} · weight {cluster.weight || 1}
                             </p>
                           </div>
                         </div>
@@ -206,6 +230,17 @@ export default function AdminPoolsPage() {
                         }`}>
                           {cluster.status}
                         </span>
+                        <span className={`px-2 py-0.5 rounded-full text-xs font-medium ${
+                          cluster.healthStatus === 'healthy'
+                            ? 'bg-green-100 text-green-700'
+                            : cluster.healthStatus === 'degraded'
+                            ? 'bg-yellow-100 text-yellow-700'
+                            : cluster.healthStatus === 'unhealthy'
+                            ? 'bg-red-100 text-red-700'
+                            : 'bg-gray-100 text-gray-600'
+                        }`}>
+                          {cluster.healthStatus || 'unknown'}
+                        </span>
                       </div>
                     </button>
                   );
@@ -278,8 +313,14 @@ export default function AdminPoolsPage() {
                         {pool.isActive ? 'Active' : 'Inactive'}
                       </span>
                       <span className="badge badge-purple flex items-center gap-1">
-                        {pool.strategy === 'least-apps' ? <><BarChart3 className="w-3 h-3" /> Least Apps</> : <><RotateCw className="w-3 h-3" /> Round Robin</>}
+                        {pool.strategy === 'weighted-resource'
+                          ? <><BarChart3 className="w-3 h-3" /> Weighted Resource</>
+                          : pool.strategy === 'least-apps'
+                          ? <><BarChart3 className="w-3 h-3" /> Least Apps</>
+                          : <><RotateCw className="w-3 h-3" /> Round Robin</>}
                       </span>
+                      {pool.isDefault && <span className="badge badge-blue">Default Pool</span>}
+                      <span className="badge badge-gray">Priority {pool.priority || 100}</span>
                     </div>
                     {pool.description && (
                       <p className="text-sm text-gray-500 mb-3">{pool.description}</p>
@@ -299,7 +340,7 @@ export default function AdminPoolsPage() {
                           <span>{cluster.status === 'active' ? <CheckCircle className="w-3 h-3" /> : <XCircle className="w-3 h-3" />}</span>
                           <span>{cluster.name}</span>
                           <span className="text-gray-400">
-                            ({cluster.provider || 'N/A'} · {cluster.region || 'N/A'})
+                            ({cluster.provider || 'N/A'} · {cluster.region || 'N/A'} · weight {cluster.weight || 1} · {cluster.healthStatus || 'unknown'})
                           </span>
                         </div>
                       )) : (