feat(bx): wire advance/reimburse withdraw API clients

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

miniprogram/api/bx.js

@@ -10,6 +10,7 @@ export const advanceApi = {
   create: (data) => bxRequest({ url: '/advances/', method: 'POST', data }),
   update: (id, data) => bxRequest({ url: `/advances/${id}`, method: 'PUT', data }),
   submit: (id) => bxRequest({ url: `/advances/${id}/submit`, method: 'POST' }),
+  withdraw: (id) => bxRequest({ url: `/advances/${id}/withdraw`, method: 'POST' }),
   delete: (id) => bxRequest({ url: `/advances/${id}`, method: 'DELETE' })
 }
 
@@ -26,6 +27,7 @@ export const reimburseApi = {
   update: (id, data) => bxRequest({ url: `/reimburses/${id}`, method: 'PUT', data }),
   submit: (id, data) =>
     bxRequest({ url: `/reimburses/${id}/submit`, method: 'POST', data }),
+  withdraw: (id) => bxRequest({ url: `/reimburses/${id}/withdraw`, method: 'POST' }),
   delete: (id) => bxRequest({ url: `/reimburses/${id}`, method: 'DELETE' })
 }