feat(user): create apis for custom role (#3763)

Co-authored-by: Mani Chandra Dulam <mani.dchandra@juspay.in>
Co-authored-by: Mani Chandra <84711804+ThisIsMani@users.noreply.github.com>

crates/api_models/src/user_role/role.rs

@@ -0,0 +1,30 @@
+use common_enums::{PermissionGroup, RoleScope};
+
+#[derive(Debug, serde::Deserialize, serde::Serialize)]
+pub struct CreateRoleRequest {
+    pub role_name: String,
+    pub groups: Vec<PermissionGroup>,
+    pub role_scope: RoleScope,
+}
+
+#[derive(Debug, serde::Deserialize, serde::Serialize)]
+pub struct UpdateRoleRequest {
+    pub groups: Option<Vec<PermissionGroup>>,
+    pub role_name: Option<String>,
+}
+
+#[derive(Debug, serde::Serialize)]
+pub struct ListRolesResponse(pub Vec<RoleInfoResponse>);
+
+#[derive(Debug, serde::Serialize)]
+pub struct RoleInfoResponse {
+    pub role_id: String,
+    pub permissions: Vec<super::Permission>,
+    pub role_name: String,
+    pub role_scope: RoleScope,
+}
+
+#[derive(Debug, serde::Deserialize, serde::Serialize)]
+pub struct GetRoleRequest {
+    pub role_id: String,
+}