feat(#159): suppressions métier dossiers/parents/enfants/AM/staff.

SuppressionService + DELETE /dossiers/:numero, cascades DELETE /users et
DELETE /enfants?deleteDossier, flag sans_enfant, specs front #160.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/src/routes/suppressions/suppressions.module.ts

@@ -0,0 +1,25 @@
+import { Module } from '@nestjs/common';
+import { TypeOrmModule } from '@nestjs/typeorm';
+import { Users } from 'src/entities/users.entity';
+import { Parents } from 'src/entities/parents.entity';
+import { AssistanteMaternelle } from 'src/entities/assistantes_maternelles.entity';
+import { Children } from 'src/entities/children.entity';
+import { ParentsChildren } from 'src/entities/parents_children.entity';
+import { AmChildren } from 'src/entities/am_children.entity';
+import { SuppressionService } from './suppression.service';
+
+@Module({
+  imports: [
+    TypeOrmModule.forFeature([
+      Users,
+      Parents,
+      AssistanteMaternelle,
+      Children,
+      ParentsChildren,
+      AmChildren,
+    ]),
+  ],
+  providers: [SuppressionService],
+  exports: [SuppressionService],
+})
+export class SuppressionsModule {}