Snapshot: new training tasks (balanced generation), docs

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

tasks_gen/train/G1923/seed/forgcus.tabl.asabap

@@ -0,0 +1,11 @@
+@EndUserText.label : 'Forge customer'
+@AbapCatalog.enhancement.category : #NOT_EXTENSIBLE
+@AbapCatalog.tableCategory : #TRANSPARENT
+@AbapCatalog.deliveryClass : #A
+@AbapCatalog.dataMaintenance : #RESTRICTED
+define table {{p}}forgcus {
+  key client        : abap.clnt not null;
+  key customer_id   : abap.char(10) not null;
+  customer_name     : abap.char(20);
+  city              : abap.char(20);
+}