Replace single-line reply input with resizable textarea in QuestionSplitView

src/components/questions/QuestionSplitView.tsx

@@ -323,11 +323,10 @@ export function QuestionSplitView({ currentUserId }: { currentUserId: string })
               style={{ borderTop: "1px solid var(--border)" }}
             >
               <div
-                className="flex gap-2"
+                className="flex flex-col gap-2"
                 style={{ opacity: detail.status === "CLOSED" ? 0.5 : 1 }}
               >
-                <input
-                  type="text"
+                <textarea
                   value={replyText}
                   onChange={(e) => setReplyText(e.target.value)}
                   onKeyDown={(e) => {
@@ -340,13 +339,15 @@ export function QuestionSplitView({ currentUserId }: { currentUserId: string })
                   placeholder={
                     detail.status === "CLOSED" ? "Вопрос закрыт" : "Написать ответ..."
                   }
-                  className="flex-1 text-sm px-3 py-2 outline-none"
+                  rows={4}
+                  className="w-full text-sm px-3 py-2 outline-none resize-y"
                   style={{
                     border: "1px solid var(--border)",
                     background: "var(--background)",
                     color: "var(--foreground)",
                   }}
                 />
+                <div className="flex justify-end">
                   <button
                     onClick={handleReply}
                     disabled={sending || !replyText.trim() || detail.status === "CLOSED"}
@@ -355,12 +356,13 @@ export function QuestionSplitView({ currentUserId }: { currentUserId: string })
                       background: "var(--foreground)",
                       color: "var(--background)",
                       border: "none",
-                    opacity: sending ? 0.6 : 1,
+                      opacity: sending || !replyText.trim() ? 0.5 : 1,
                     }}
                   >
-                  {sending ? "..." : "Отправить"}
+                    {sending ? "..." : "Отправить →"}
                   </button>
                 </div>
+              </div>
               {error && (
                 <p className="text-xs mt-1" style={{ color: "var(--destructive)" }}>
                   {error}