Generator: pilot analysis and fixes; G0002-G0021 tasks; handover notes merged

- Static bundle checks (name length, seed type, reserved words, contract test classes,
  testclasses_file), local abaplint parser check before SAP, max_tokens, robust JSON parse
- Runner: G2 for CDS views with parameters, contract_check detail in report
- G0020 and G0013 fixed by review and revalidated (oracle 100, null 0)
- Pilot results in docs/faz1-tasarim.md 11e; handover notes merged into CLAUDE.md and docs

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

tasks_gen/eval/G0021/reference/i_shipment.ddls.asddls

@@ -0,0 +1,23 @@
+@AccessControl.authorizationCheck: #NOT_REQUIRED
+@Metadata.ignorePropagatedAnnotations: true
+@EndUserText.label: 'Shipment overview'
+define view entity {{P}}I_SHIPMENT
+  as select from {{p}}road as road
+{
+  key road.ship_id as ship_id,
+      road.cust    as customer,
+      'ROAD'       as ship_mode,
+      road.kg      as weight,
+      road.cost    as cost
+}
+where road.kg > 0
+union all
+select from {{p}}rail as rail
+{
+  key rail.ship_id  as ship_id,
+      rail.customer as customer,
+      'RAIL'        as ship_mode,
+      rail.weight   as weight,
+      rail.fee      as cost
+}
+where rail.weight > 0