fix: button hydration 에러 수정

src/widgets/start-ritual-widget/ui/StartRitualWidget.tsx

@@ -1,4 +1,3 @@
-import { useState } from 'react';
 import type { GoalChip } from '@/entities/session';
 import { Button, Chip, GlassCard } from '@/shared/ui';
 
@@ -21,8 +20,6 @@ export const StartRitualWidget = ({
   onQuickEnter,
   onOpenCustomEntry,
 }: StartRitualWidgetProps) => {
-  const [isGoalOpen, setGoalOpen] = useState(true);
-
   return (
     <GlassCard elevated className="space-y-5 p-5 sm:p-6">
       <div>
@@ -33,20 +30,6 @@ export const StartRitualWidget = ({
       </div>
 
       <section className="space-y-3">
-        <div className="flex items-center justify-between">
-          <label className="block text-xs font-medium uppercase tracking-[0.13em] text-white/65">
-            한 줄 메모(선택)
-          </label>
-          <button
-            type="button"
-            onClick={() => setGoalOpen((current) => !current)}
-            className="text-xs text-white/62 transition hover:text-white"
-          >
-            {isGoalOpen ? '접기' : '펼치기'}
-          </button>
-        </div>
-
-        {isGoalOpen ? (
         <div className="space-y-3">
           <input
             value={goalInput}
@@ -67,7 +50,6 @@ export const StartRitualWidget = ({
             ))}
           </div>
         </div>
-        ) : null}
       </section>
 
       <section className="space-y-3">