feat: add btn text

app/dashboard/announcements/page.tsx

@@ -25,6 +25,7 @@ interface Announcement {
   title?: string;
   description?: string;
   link?: string;
+  button_text?: string;
   start_date?: string | null;
   end_date?: string | null;
   image_id?: number | null;
@@ -57,6 +58,7 @@ export default function AnnouncementsPage() {
   const [title, setTitle] = useState("");
   const [description, setDescription] = useState("");
   const [link, setLink] = useState("");
+  const [buttonText, setButtonText] = useState("");
   const [startDate, setStartDate] = useState("");
   const [endDate, setEndDate] = useState("");
   const [imageId, setImageId] = useState<number | null>(null);
@@ -71,6 +73,7 @@ export default function AnnouncementsPage() {
     setTitle("");
     setDescription("");
     setLink("");
+    setButtonText("");
     setStartDate("");
     setEndDate("");
     setImageId(null);
@@ -82,6 +85,7 @@ export default function AnnouncementsPage() {
     setTitle(row.title ?? "");
     setDescription(row.description ?? "");
     setLink(row.link ?? "");
+    setButtonText(row.button_text ?? "");
     setStartDate(toDateInput(row.start_date));
     setEndDate(toDateInput(row.end_date));
     setImageId(row.image_id ?? null);
@@ -99,6 +103,7 @@ export default function AnnouncementsPage() {
         title,
         description,
         link,
+        button_text: buttonText,
         start_date: startDate,
         end_date: endDate,
         image_id: imageId,
@@ -270,6 +275,14 @@ export default function AnnouncementsPage() {
             />
           </Field>
 
+          <Field label="متن دکمه" hint="اختیاری">
+            <Input
+              value={buttonText}
+              onChange={(e) => setButtonText(e.target.value)}
+              placeholder="مثلاً مشاهده"
+            />
+          </Field>
+
           <div className="grid grid-cols-2 gap-4">
             <Field label="تاریخ شروع">
               <Input