refactor: replace client deletion with user detachment and update client schema to support optional user association

server/src/Models/Clients/Clients.Interface.ts

@@ -14,6 +14,10 @@ export type FindClientsParams = {
     status?: boolean;
 };
 
+export type DetachClientUserParams = {
+    clientId: string;
+};
+
 export type FindClientByIdParams = {
     id: string;
     companyId: string;
@@ -77,7 +81,7 @@ export type DeleteClientParams = {
 export interface IClient {
     id?: string;
     companyId: string;
-    userId: string;
+    userId?: string;
     fromClientId: string;
     status: boolean;
     firstName: string;
@@ -116,6 +120,7 @@ export interface IClientsAdapter {
     find(filters: FindClientsParams): Promise<IClient[]>;
     findOne(filters: FindClientsParams): Promise<IClientDocument | null>;
     paginate(filters: PaginateClientsParams): Promise<PaginateClientsResults>;
+    detachUser(data: DetachClientUserParams): Promise<void>;
 }
 
 export interface IClientsManager {