feat: add header channel selector & adding channel modal menu

app/(dashboard)/creatives/page.tsx

@@ -36,8 +36,10 @@ import {
 } from "lucide-react";
 import type { Creative } from "@/lib/types/api";
 import { Alert, AlertDescription } from "@/components/ui/alert";
+import { useTargetChannel } from "@/components/providers/target-channel-provider";
 
 export default function CreativesPage() {
+  const { selectedChannel } = useTargetChannel();
   const [creatives, setCreatives] = useState<Creative[]>([]);
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState<string | null>(null);
@@ -46,13 +48,21 @@ export default function CreativesPage() {
   );
 
   useEffect(() => {
-    loadCreatives();
-  }, []);
+    if (selectedChannel) {
+      loadCreatives();
+    } else {
+      setLoading(false);
+    }
+  }, [selectedChannel]);
 
   const loadCreatives = async () => {
+    if (!selectedChannel) return;
+
     try {
       setLoading(true);
-      const response = await creativesApi.list();
+      const response = await creativesApi.list({
+        target_channel_id: selectedChannel.id,
+      });
       setCreatives(response.creatives);
     } catch (err: any) {
       setError(err?.error?.message || "Ошибка загрузки креативов");