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/G0020/spec.md

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+# 1. Goal
+Show the sales of each book for a period that the caller gives. The period comes
+from the caller, so the view needs input parameters. A report and an OData
+service read the view.
+
+# 2. Open questions
+None.
+
+# 3. Context
+- Table {{P}}BOOK (book master data), package $TMP. Key: BOOK_ID (CHAR 10).
+  Fields: TITLE (CHAR 40), CATEGORY (CHAR 10), PRICE (DEC 15,2), STOCK (INT4).
+- Table {{P}}SALE (book sales), package $TMP. Key: BOOK_ID (CHAR 10),
+  SALE_DATE (DATS). Field: QUANTITY (INT4).
+
+# 4. Contract
+- Create the CDS view entity {{P}}I_BOOK_REVENUE in package $TMP.
+- The view has two input parameters, with these names and types:
+  - P_FROM (DATS): first day of the period.
+  - P_TO (DATS): last day of the period.
+- Elements, with these names: BOOK_ID (key), TITLE, CATEGORY, SOLD_QUANTITY,
+  REVENUE.
+- No authorization check (#NOT_REQUIRED).
+- Create the global ABAP Unit test class {{P}}T20_TEST for the view.
+
+# 5. Business rules
+1. The view has one row for each book that has at least one sale whose
+   SALE_DATE is in the period. The period starts on P_FROM and ends on P_TO.
+   Both limits belong to the period.
+2. A book without a sale in the period has no row in the view.
+3. SOLD_QUANTITY is the sum of QUANTITY of all sales of the book in the period.
+4. REVENUE is the sum of QUANTITY multiplied by PRICE of the book, over all
+   sales of the book in the period. REVENUE has 2 decimals.
+5. TITLE and CATEGORY are the title and the category of the book.
+
+# 6. Constraints
+- Release target: 7.58.
+- Coding standards: Clean ABAP, methods below 40 statements.
+- Out of scope: do not change {{P}}BOOK and {{P}}SALE.
+
+# 7. Acceptance
+- The view is active and has no syntax error.
+- The hidden tests pass.
+- {{P}}T20_TEST uses CL_CDS_TEST_ENVIRONMENT and passes.