feat: model selector dropdown fetches from OpenRouter API

admin/src/app/official-accounts/page.tsx

@@ -8,6 +8,59 @@ import {
   ChevronDown, ChevronUp, Bot, Clock, AlertCircle, CheckCircle, ExternalLink,
 } from 'lucide-react';
 
+// ─── Model Selector (fetches from OpenRouter) ─────────
+function ModelSelector({ value, onChange, className }: { value: string; onChange: (v: string) => void; className?: string }) {
+  const [models, setModels] = useState<{ id: string; name: string }[]>([]);
+  const [search, setSearch] = useState('');
+  const [open, setOpen] = useState(false);
+  const [loading, setLoading] = useState(false);
+
+  useEffect(() => {
+    setLoading(true);
+    api.listOpenRouterModels().then((data) => {
+      const list = (data.models || []).map((m: any) => ({ id: m.id, name: m.name || m.id }));
+      setModels(list);
+    }).catch(() => {}).finally(() => setLoading(false));
+  }, []);
+
+  const filtered = search
+    ? models.filter((m) => m.id.toLowerCase().includes(search.toLowerCase()) || m.name.toLowerCase().includes(search.toLowerCase()))
+    : models;
+
+  const displayName = models.find((m) => m.id === value)?.name || value;
+
+  return (
+    <div className={`relative ${className || ''}`}>
+      <button type="button" onClick={() => setOpen(!open)}
+        className="w-full px-3 py-2 border border-warm-300 rounded-lg text-sm text-left truncate bg-white hover:bg-warm-50 transition-colors">
+        {loading ? 'Loading models...' : displayName}
+      </button>
+      {open && (
+        <div className="absolute z-50 mt-1 w-full bg-white border border-warm-300 rounded-lg shadow-lg max-h-64 overflow-hidden flex flex-col">
+          <input type="text" placeholder="Search models..." value={search} onChange={(e) => setSearch(e.target.value)} autoFocus
+            className="px-3 py-2 border-b border-warm-200 text-sm outline-none" />
+          <div className="overflow-y-auto max-h-52">
+            {filtered.length === 0 ? (
+              <p className="p-3 text-xs text-gray-500">{loading ? 'Loading...' : 'No models found'}</p>
+            ) : (
+              filtered.slice(0, 100).map((m) => (
+                <button key={m.id} type="button"
+                  onClick={() => { onChange(m.id); setOpen(false); setSearch(''); }}
+                  className={`w-full text-left px-3 py-1.5 text-xs hover:bg-brand-50 transition-colors ${
+                    m.id === value ? 'bg-brand-50 text-brand-700 font-medium' : 'text-gray-700'
+                  }`}>
+                  <span className="block truncate font-medium">{m.name}</span>
+                  <span className="block truncate text-[10px] text-gray-400 font-mono">{m.id}</span>
+                </button>
+              ))
+            )}
+          </div>
+        </div>
+      )}
+    </div>
+  );
+}
+
 const DEFAULT_NEWS_SOURCES = [
   { name: 'NPR', rss_url: 'https://feeds.npr.org/1001/rss.xml', enabled: true },
   { name: 'AP News', rss_url: 'https://rsshub.app/apnews/topics/apf-topnews', enabled: true },
@@ -398,8 +451,7 @@ function CreateAccountForm({ onDone, initialProfile }: { onDone: () => void; ini
         </div>
         <div>
           <label className="block text-sm font-medium text-gray-700 mb-1">Model</label>
-          <input type="text" value={modelId} onChange={(e) => setModelId(e.target.value)}
+          <ModelSelector value={modelId} onChange={setModelId} />
-            className="w-full px-3 py-2 border border-warm-300 rounded-lg text-sm font-mono" />
         </div>
       </div>
 
@@ -520,8 +572,7 @@ function EditAccountForm({ config, onDone }: { config: Config; onDone: () => voi
       <div className="grid grid-cols-4 gap-3 mb-3">
         <div>
           <label className="block text-xs font-medium text-gray-600 mb-1">Model</label>
-          <input type="text" value={modelId} onChange={(e) => setModelId(e.target.value)}
+          <ModelSelector value={modelId} onChange={setModelId} />
-            className="w-full px-2 py-1.5 border border-warm-300 rounded text-xs font-mono" />
         </div>
         <div>
           <label className="block text-xs font-medium text-gray-600 mb-1">Temperature</label>