feat: ship minecraft theme updates and platform workflow improvements

backend/src/controllers/meta_controller.cc

@@ -100,6 +100,7 @@ Json::Value BuildOpenApiSpec() {
   paths["/api/v1/submissions/{id}/analysis"]["post"]["summary"] = "提交评测建议（LLM）";
   paths["/api/v1/admin/users"]["get"]["summary"] = "管理员用户列表";
   paths["/api/v1/admin/users/{id}/rating"]["patch"]["summary"] = "管理员修改用户积分";
+  paths["/api/v1/admin/users/{id}"]["delete"]["summary"] = "管理员删除用户";
   paths["/api/v1/admin/redeem-items"]["get"]["summary"] = "管理员查看积分兑换物品";
   paths["/api/v1/admin/redeem-items"]["post"]["summary"] = "管理员新增积分兑换物品";
   paths["/api/v1/admin/redeem-items/{id}"]["patch"]["summary"] = "管理员修改积分兑换物品";