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/G0019/reference/i_sales_class.ddls.asddls

@@ -0,0 +1,14 @@
+@AccessControl.authorizationCheck: #NOT_REQUIRED
+@EndUserText.label: 'Sales items by region and size class'
+define view entity {{P}}I_SALES_CLASS
+  as select from {{p}}sale
+{
+  key region                                                             as region,
+      count( * )                                                         as item_count,
+      sum( case when amount < 100 then 1 else 0 end )                    as small_count,
+      sum( case when amount >= 100 and amount < 1000 then 1 else 0 end ) as medium_count,
+      sum( case when amount >= 1000 then 1 else 0 end )                  as large_count,
+      sum( amount )                                                      as total_amount
+}
+where status <> 'X'
+group by region