feat(ECR-042): OpsCMS FeedSlot 薄写面

Admin POST/PUT 复用 admin.cms.write；C 端 GET /home/feed-slots；首页无 active 槽隐藏推荐区、失败回退展示；无新 migration。

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/admin-h5/src/api/client.ts

@@ -521,6 +521,43 @@ export const adminApi = {
       system: boolean
       updated_at: string
     }>('GET', `/cms/feed-slots/${id}`),
+  createFeedSlot: (body: {
+    code: string
+    title: string
+    slot_key: string
+    placement: string
+    active: boolean
+  }) =>
+    request<{
+      id: string
+      code: string
+      title: string
+      slot_key: string
+      placement: string
+      active: boolean
+      system: boolean
+      updated_at: string
+    }>('POST', '/cms/feed-slots', body),
+  updateFeedSlot: (
+    id: string,
+    body: {
+      code: string
+      title: string
+      slot_key: string
+      placement: string
+      active: boolean
+    },
+  ) =>
+    request<{
+      id: string
+      code: string
+      title: string
+      slot_key: string
+      placement: string
+      active: boolean
+      system: boolean
+      updated_at: string
+    }>('PUT', `/cms/feed-slots/${id}`, body),
   publications: () =>
     request<{ items: Array<Record<string, unknown>> }>('GET', '/cms/publications'),
   publication: (id: string) =>