Add exceptions for metadata modules (#6070)

Class exception for each metadata module + handler to map on graphql
error

TODO left :
- find a way to call handler on auto-resolvers nestjs query (probably
interceptors)
- discuss what should be done for pre-hooks errors
- discuss what should be done for Unauthorized exception

packages/twenty-server/src/engine/metadata-modules/utils/__tests__/validate-metadata-name.spec.ts

@@ -1,5 +1,7 @@
-import { InvalidStringException } from 'src/engine/metadata-modules/errors/InvalidStringException';
-import { validateMetadataName } from 'src/engine/metadata-modules/utils/validate-metadata-name.utils';
+import {
+  validateMetadataName,
+  InvalidStringException,
+} from 'src/engine/metadata-modules/utils/validate-metadata-name.utils';
 
 describe('validateMetadataName', () => {
   it('does not throw if string is valid', () => {

packages/twenty-server/src/engine/metadata-modules/utils/validate-metadata-name.utils.ts

@@ -1,5 +1,3 @@
-import { InvalidStringException } from 'src/engine/metadata-modules/errors/InvalidStringException';
-
 const VALID_STRING_PATTERN = /^[a-z][a-zA-Z0-9]*$/;
 
 export const validateMetadataName = (string: string) => {
@@ -7,3 +5,11 @@ export const validateMetadataName = (string: string) => {
     throw new InvalidStringException(string);
   }
 };
+
+export class InvalidStringException extends Error {
+  constructor(string: string) {
+    const message = `String "${string}" is not valid`;
+
+    super(message);
+  }
+}