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/G0010/seed/if_stock_cover.intf.abap

@@ -0,0 +1,46 @@
+INTERFACE {{p}}if_stock_cover PUBLIC.
+  TYPES ty_material TYPE c LENGTH 18.
+  TYPES ty_plant    TYPE c LENGTH 4.
+  TYPES ty_quantity TYPE p LENGTH 13 DECIMALS 3.
+  TYPES ty_status   TYPE c LENGTH 10.
+
+  TYPES: BEGIN OF ty_stock_item,
+           material TYPE ty_material,
+           plant    TYPE ty_plant,
+           quantity TYPE ty_quantity,
+         END OF ty_stock_item.
+  TYPES tt_stock_item TYPE STANDARD TABLE OF ty_stock_item WITH EMPTY KEY.
+
+  TYPES: BEGIN OF ty_requirement,
+           material TYPE ty_material,
+           plant    TYPE ty_plant,
+           required TYPE ty_quantity,
+         END OF ty_requirement.
+  TYPES tt_requirement TYPE STANDARD TABLE OF ty_requirement WITH EMPTY KEY.
+
+  TYPES: BEGIN OF ty_result,
+           material  TYPE ty_material,
+           plant     TYPE ty_plant,
+           required  TYPE ty_quantity,
+           available TYPE ty_quantity,
+           shortage  TYPE ty_quantity,
+           status    TYPE ty_status,
+         END OF ty_result.
+  TYPES tt_result TYPE STANDARD TABLE OF ty_result WITH EMPTY KEY.
+
+  CONSTANTS:
+    BEGIN OF c_status,
+      ok      TYPE ty_status VALUE 'OK',
+      short   TYPE ty_status VALUE 'SHORT',
+      invalid TYPE ty_status VALUE 'INVALID',
+    END OF c_status.
+
+  METHODS check
+    IMPORTING it_stock         TYPE tt_stock_item
+              it_requirement   TYPE tt_requirement
+    RETURNING VALUE(rt_result) TYPE tt_result.
+
+  METHODS shortages
+    IMPORTING it_result          TYPE tt_result
+    RETURNING VALUE(rt_shortage) TYPE tt_result.
+ENDINTERFACE.