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/G0003/spec.md

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+# 1. Goal
+A training provider sells seats in courses. The booking program needs one service that
+answers three questions:
+- How many seats are free in a course?
+- Can we book a given number of seats in a course?
+- Which courses of a category still have enough free seats?
+
+# 2. Open questions
+None.
+
+# 3. Context
+- The database table {{P}}COURSE exists in package $TMP. It has these columns:
+  MANDT (client), COURSE_ID (CHAR 10, key), CATEGORY (CHAR 10), TITLE (CHAR 40),
+  CAPACITY (INT4), BOOKED (INT4).
+- CAPACITY is the number of seats of the course. BOOKED is the number of seats that
+  are already sold.
+- The class {{P}}SEED_COURSES fills the table with example data. It is active.
+
+# 4. Contract
+- Create the class {{P}}COURSE_BOOKING in package $TMP.
+- The class is public, final, and has a public constructor without parameters.
+- The class has these public types:
+  - TY_COURSE_ID, type C, length 10.
+  - TY_CATEGORY, type C, length 10.
+  - TY_COURSE_INFO, a structure with the components COURSE_ID (type TY_COURSE_ID),
+    TITLE (type C, length 40) and FREE_SEATS (type I).
+  - TT_COURSE_INFO, a standard table of TY_COURSE_INFO with an empty key.
+- The class has these public methods:
+  - GET_FREE_SEATS, importing IV_COURSE_ID type TY_COURSE_ID,
+    returning RV_FREE_SEATS type I.
+  - IS_BOOKABLE, importing IV_COURSE_ID type TY_COURSE_ID and IV_SEATS type I,
+    returning RV_BOOKABLE type ABAP_BOOL.
+  - LIST_BOOKABLE_COURSES, importing IV_CATEGORY type TY_CATEGORY and IV_SEATS type I,
+    returning RT_COURSES type TT_COURSE_INFO.
+- Do not add other public methods.
+
+# 5. Business rules
+Free seats
+1. Read the course with the course ID.
+2. If the table has no course with this ID, the free seats are 0.
+3. The free seats are the capacity minus the booked seats.
+4. If the capacity minus the booked seats is less than 0, the free seats are 0.
+
+GET_FREE_SEATS returns the free seats of the course.
+
+IS_BOOKABLE
+5. If IV_SEATS is less than 1, the result is false.
+6. If the table has no course with this ID, the result is false.
+7. The result is true if IV_SEATS is less than or equal to the free seats of the
+   course. Else the result is false.
+
+LIST_BOOKABLE_COURSES
+8. Read all courses with the category IV_CATEGORY.
+9. Use only the courses whose free seats are greater than or equal to IV_SEATS.
+10. Sort the result in ascending order by COURSE_ID.
+11. Each result row has the COURSE_ID, the TITLE and the free seats of the course.
+12. If no course matches, the result is empty.
+
+# 6. Constraints
+- Release target: 8.16.
+- Coding standards: Clean ABAP. Method length below 40 statements. No global variables.
+  No comment that restates the code.
+- Out of scope: do not change the table {{P}}COURSE and the class {{P}}SEED_COURSES.
+
+# 7. Acceptance
+- The class is active and has no syntax error.
+- The hidden tests pass.
+- Write your own ABAP Unit tests for the class.