fix(backend): fix unit test, delete migrations

Author: pYassine

packages/backend/src/_migrations/1727093929792-manual-migration.ts

@@ -78,4 +78,5 @@ export const CUSTOM_DOC_ATTESTATION_POSTALE: StructureCustomDocTags = {
   PROCURATION_DATE_DEBUT: "",
   PROCURATION_DATE_FIN: "",
   PROCURATION_DATE_NAISSANCE: "",
+  PROCURATIONS_NOMBRE: 0,
 };

packages/backend/src/_migrations/1727186783887-manual-migration.ts

@@ -76,4 +76,5 @@ export const CUSTOM_DOC_COURRIER_REFUS: StructureCustomDocTags = {
   PROCURATION_DATE_DEBUT: "",
   PROCURATION_DATE_FIN: "",
   PROCURATION_DATE_NAISSANCE: "",
+  PROCURATIONS_NOMBRE: 0,
 };