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/task.json

@@ -0,0 +1,76 @@
+{
+  "id": "G0020",
+  "category": "B",
+  "object_type": "DDLS",
+  "difficulty": 2,
+  "release_target": "v758",
+  "expected_outcome": "implement",
+  "budget": {
+    "max_tool_calls": 40,
+    "max_activations": 10
+  },
+  "seed": [
+    {
+      "type": "TABL",
+      "name": "{{P}}BOOK",
+      "file": "seed/book.tabl.asabap",
+      "description": "Book master data"
+    },
+    {
+      "type": "TABL",
+      "name": "{{P}}SALE",
+      "file": "seed/sale.tabl.asabap",
+      "description": "Book sales"
+    }
+  ],
+  "contract": [
+    {
+      "type": "DDLS",
+      "name": "{{P}}I_BOOK_REVENUE",
+      "fields": [
+        "BOOK_ID",
+        "TITLE",
+        "CATEGORY",
+        "SOLD_QUANTITY",
+        "REVENUE"
+      ],
+      "parameters": [
+        {
+          "name": "P_FROM",
+          "type": "DATS"
+        },
+        {
+          "name": "P_TO",
+          "type": "DATS"
+        }
+      ]
+    }
+  ],
+  "out_of_scope": [
+    "{{P}}BOOK",
+    "{{P}}SALE"
+  ],
+  "hidden_tests": [
+    {
+      "type": "CLAS",
+      "name": "{{P}}T20_HIDDEN",
+      "file": "hidden/t20_hidden.clas.abap",
+      "description": "T20 hidden tests"
+    }
+  ],
+  "reference": [
+    {
+      "type": "DDLS",
+      "name": "{{P}}I_BOOK_REVENUE",
+      "file": "reference/i_book_revenue.ddls.asddls",
+      "description": "Book revenue in a period"
+    },
+    {
+      "type": "CLAS",
+      "name": "{{P}}T20_TEST",
+      "file": "reference/t20_test.clas.abap",
+      "description": "T20 own tests"
+    }
+  ],
+  "craft_checks": []
+}