fix: created DB row types, domain types, added mappers and fixed service [no ci]

Author: sgort

packages/backend/src/db/mappers.ts

@@ -1,5 +1,3 @@
-// db/mappers.ts
-
 import { BpmnRow, FormRow, DocumentRow } from './types';
 import { Bpmn, Form, Document } from '../domain/types';
 

packages/backend/src/db/types.ts

@@ -1,5 +1,3 @@
-// db/types.ts
-
 export type BpmnRow = {
   lde_id: string;
   bpmn_process_id: string;

packages/backend/src/domain/types.ts

@@ -1,5 +1,3 @@
-// domain/types.ts
-
 export type Bpmn = {
   id: string;
   bpmnProcessId: string;