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/G0009/reference/shipping_cost_calc.testclasses.abap

@@ -0,0 +1,68 @@
+CLASS ltc_shipping_cost_calc DEFINITION FINAL FOR TESTING
+  DURATION SHORT RISK LEVEL HARMLESS.
+
+  PRIVATE SECTION.
+    DATA mo_cut TYPE REF TO {{p}}if_shipping_cost.
+
+    METHODS setup.
+    METHODS zero_weight_is_free FOR TESTING.
+    METHODS minimum_charge FOR TESTING.
+    METHODS tier_limits FOR TESTING.
+    METHODS bulk_weight FOR TESTING.
+    METHODS express_surcharge FOR TESTING.
+    METHODS express_below_minimum FOR TESTING.
+
+    METHODS assert_cost
+      IMPORTING iv_weight  TYPE {{p}}if_shipping_cost=>ty_weight
+                iv_express TYPE abap_bool
+                iv_exp     TYPE {{p}}if_shipping_cost=>ty_amount
+                iv_msg     TYPE string.
+ENDCLASS.
+
+
+CLASS ltc_shipping_cost_calc IMPLEMENTATION.
+  METHOD setup.
+    mo_cut = NEW {{p}}shipping_cost_calc( ).
+  ENDMETHOD.
+
+  METHOD assert_cost.
+    cl_abap_unit_assert=>assert_equals(
+      exp = iv_exp
+      act = mo_cut->calculate( iv_weight = iv_weight iv_express = iv_express )
+      msg = iv_msg ).
+  ENDMETHOD.
+
+  METHOD zero_weight_is_free.
+    assert_cost( iv_weight = '0.000' iv_express = abap_true
+                 iv_exp = '0.00' iv_msg = `zero weight` ).
+  ENDMETHOD.
+
+  METHOD minimum_charge.
+    assert_cost( iv_weight = '0.500' iv_express = abap_false
+                 iv_exp = '6.00' iv_msg = `minimum charge` ).
+  ENDMETHOD.
+
+  METHOD tier_limits.
+    assert_cost( iv_weight = '1.000' iv_express = abap_false
+                 iv_exp = '6.00' iv_msg = `1.000 kg` ).
+    assert_cost( iv_weight = '1.001' iv_express = abap_false
+                 iv_exp = '8.50' iv_msg = `1.001 kg` ).
+  ENDMETHOD.
+
+  METHOD bulk_weight.
+    assert_cost( iv_weight = '31.500' iv_express = abap_false
+                 iv_exp = '18.75' iv_msg = `31.500 kg` ).
+    assert_cost( iv_weight = '32.000' iv_express = abap_false
+                 iv_exp = '19.40' iv_msg = `32.000 kg` ).
+  ENDMETHOD.
+
+  METHOD express_surcharge.
+    assert_cost( iv_weight = '2.000' iv_express = abap_true
+                 iv_exp = '11.48' iv_msg = `2.000 kg express` ).
+  ENDMETHOD.
+
+  METHOD express_below_minimum.
+    assert_cost( iv_weight = '0.500' iv_express = abap_true
+                 iv_exp = '6.62' iv_msg = `0.500 kg express` ).
+  ENDMETHOD.
+ENDCLASS.