feat(ECR-009): Ops-D order filters, plan display prices, refund status

LOOP-RUN-002 sample: admin order multi-filter, membership display
price catalog, read-only refund_status. No real payment or RBAC.

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

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

@@ -112,8 +112,25 @@ export const adminApi = {
     request<{ ok: boolean; ask_paid_quota_left: number }>('POST', `/users/${id}/ask-quota/grant`, {
       delta,
     }),
-  orders: () =>
-    request<{
+  orders: (params?: {
+    status?: string
+    kind?: string
+    from?: string
+    to?: string
+    user_id?: string
+    limit?: number
+    offset?: number
+  }) => {
+    const q = new URLSearchParams()
+    if (params?.status) q.set('status', params.status)
+    if (params?.kind) q.set('kind', params.kind)
+    if (params?.from) q.set('from', params.from)
+    if (params?.to) q.set('to', params.to)
+    if (params?.user_id) q.set('user_id', params.user_id)
+    if (params?.limit != null) q.set('limit', String(params.limit))
+    if (params?.offset != null) q.set('offset', String(params.offset))
+    const qs = q.toString()
+    return request<{
       items: Array<{
         id: string
         user_id: string
@@ -121,9 +138,18 @@ export const adminApi = {
         plan?: string
         amount_cents: number
         status: string
+        refund_status: string
         created_at: string
       }>
-    }>('GET', '/orders'),
+    }>('GET', `/orders${qs ? `?${qs}` : ''}`)
+  },
+  planPrices: () =>
+    request<{ items: Array<{ plan: string; display_cents: number; updated_at: string }> }>(
+      'GET',
+      '/membership/plan-prices',
+    ),
+  savePlanPrices: (items: Array<{ plan: string; display_cents: number }>) =>
+    request<{ ok: boolean }>('PUT', '/membership/plan-prices', { items }),
   audit: () =>
     request<{
       items: Array<{