ui(cupang): 입고센터 페이지 좌우 배치 + 목록 가나다순/900px 스크롤

- 추가 폼에서 정렬순서 입력란 제거(좌측), 센터 목록 우측
- 센터 목록 이름 오름차순, 프레임 900px 고정 내부 스크롤, 1열 행
- 행 편집은 이름 저장 + 활성/비활성 + 삭제 (정렬 입력 제거)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

app/modules/cupang/router.py

@@ -454,7 +454,7 @@ async def centers_page(request: Request) -> HTMLResponse:
     if not isinstance(guard, tuple):
         return guard
     store, user = guard
-    centers = store.list_centers(include_inactive=True)
+    centers = sorted(store.list_centers(include_inactive=True), key=lambda c: c["name"])
     # 사용 중 여부 표시
     for c in centers:
         c["in_use"] = store.center_in_use(center_id=c["id"])

app/modules/cupang/templates/cupang/centers.html

@@ -9,30 +9,30 @@
     <a class="erp-btn erp-btn-primary" href="/cupang/">◀◀ 달력</a>
   </div>
 
-  <!-- 추가 (슬림) -->
+  <div class="cpg-center-layout">
+
+    <!-- 왼쪽: 입고센터 추가 -->
     <div class="erp-card cpg-form-card cpg-center-add">
       <h2 class="cpg-center-add-title">입고센터 추가</h2>
       <form method="post" action="/cupang/centers" class="cpg-inline-form">
-      <input class="erp-input" type="text" name="name" placeholder="센터명 (예: 대구3)" required style="min-width:180px" />
+        <input class="erp-input" type="text" name="name" placeholder="센터명 (예: 대구3)" required style="flex:1 1 auto;min-width:0" />
-      <input class="erp-input" type="number" name="sort_order" value="0" style="width:70px" title="정렬순서" />
         <button type="submit" class="erp-btn erp-btn-primary">추가</button>
       </form>
     </div>
 
-  <!-- 목록 (2열 그리드, 한 줄/센터) -->
+    <!-- 오른쪽: 센터 목록 (높이 900 고정, 내부 스크롤) -->
-  <div class="erp-card cpg-form-card">
+    <div class="erp-card cpg-form-card cpg-center-listcard">
       <div class="cpg-card-head">
         <h2>센터 목록 ({{ centers|length }})</h2>
         <span class="erp-muted">사용 중 센터는 삭제 시 비활성화됩니다.</span>
       </div>
 
-    <div class="cpg-center-grid">
+      <div class="cpg-center-list">
         {% for c in centers %}
         <div class="cpg-center-row {% if not c.active %}is-inactive{% endif %}">
           <form method="post" action="/cupang/centers/{{ c.id }}/edit" class="cpg-center-edit">
             <input class="erp-input cpg-center-name" type="text" name="name" value="{{ c.name }}" />
-          <input class="erp-input cpg-center-sort" type="number" name="sort_order" value="{{ c.sort_order }}" title="정렬" />
+            <button type="submit" class="erp-btn erp-btn-outline cpg-btn-sm" title="이름 저장">저장</button>
-          <button type="submit" class="erp-btn erp-btn-outline cpg-btn-sm" title="이름/정렬 저장">저장</button>
           </form>
           <span class="cpg-center-state">
             {% if c.in_use %}<span class="erp-badge erp-badge-inverse cpg-mini">사용중</span>{% endif %}
@@ -61,5 +61,6 @@
       </div>
     </div>
 
+  </div>
 </section>
 {% endblock %}

app/static/cupang.css

@@ -98,17 +98,32 @@
 .cpg-inline-form { display: inline-flex; gap: 6px; align-items: center; margin: 0; }
 .cpg-row-actions { display: flex; gap: 6px; flex-wrap: wrap; }
 
-/* ── 입고센터 관리 (컴팩트) ── */
+/* ── 입고센터 관리 (좌: 추가 / 우: 목록) ── */
-.cpg-center-add { padding: 12px 16px; }
+.cpg-center-layout {
+  display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-start;
+}
+.cpg-center-add {
+  width: 360px; flex: 0 0 auto;
+  padding: 16px;
+}
+.cpg-center-listcard {
+  flex: 1 1 480px; min-width: 0;
+  height: 900px;
+  display: flex; flex-direction: column; overflow: hidden;
+}
+@media (max-width: 820px) {
+  .cpg-center-add, .cpg-center-listcard { width: 100%; flex-basis: 100%; }
+}
+
 .cpg-center-add-title { font-size: 15px; font-weight: 600; margin: 0 0 8px; }
 .cpg-btn-sm { padding: 3px 8px; font-size: 12px; }
 
-.cpg-center-grid {
+/* 목록: 카드 높이 채우고 내부 스크롤 */
-  display: grid;
+.cpg-center-list {
-  grid-template-columns: repeat(2, minmax(0, 1fr));
+  flex: 1 1 auto; min-height: 0; overflow-y: auto;
-  gap: 6px 16px;
+  display: flex; flex-direction: column; gap: 6px;
+  padding-right: 4px;
 }
-@media (max-width: 820px) { .cpg-center-grid { grid-template-columns: 1fr; } }
 
 .cpg-center-row {
   display: flex; align-items: center; gap: 8px;