Hard batch G0022-G0026: 5/5 accepted; budget floor, CDS checks, mutation check

- generator: budget floor (2x oracle activations, 3x calls), static checks for CDS
  $parameters and UNION annotation
- harness/mutation.py: deterministic mutants of the reference; hidden tests must fail
- G0022 revalidated with harness fixes: oracle 100, null 0
- results in docs/faz1-tasarim.md 11f

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tasks_gen/eval/G0025/task.json

@@ -0,0 +1,73 @@
+{
+  "id": "G0025",
+  "category": "B",
+  "object_type": "DDLS",
+  "difficulty": 2,
+  "release_target": "v816",
+  "expected_outcome": "implement",
+  "budget": {
+    "max_tool_calls": 40,
+    "max_activations": 10
+  },
+  "seed": [
+    {
+      "type": "TABL",
+      "name": "{{P}}PART_A",
+      "file": "seed/part_a.tabl.asabap",
+      "description": "Partner list A"
+    },
+    {
+      "type": "TABL",
+      "name": "{{P}}PART_B",
+      "file": "seed/part_b.tabl.asabap",
+      "description": "Partner list B"
+    },
+    {
+      "type": "CLAS",
+      "name": "{{P}}SEED_PARTNER",
+      "file": "seed/seed_partner.clas.abap",
+      "description": "Fills both partner tables",
+      "run": true
+    }
+  ],
+  "contract": [
+    {
+      "type": "DDLS",
+      "name": "{{P}}I_PARTNER_ALL",
+      "fields": [
+        "PARTNER_ID",
+        "NAME",
+        "CITY",
+        "SOURCE"
+      ]
+    }
+  ],
+  "out_of_scope": [
+    "{{P}}PART_A",
+    "{{P}}PART_B",
+    "{{P}}SEED_PARTNER"
+  ],
+  "hidden_tests": [
+    {
+      "type": "CLAS",
+      "name": "{{P}}T16_HIDDEN",
+      "file": "hidden/t16_hidden.clas.abap",
+      "description": "T16 hidden tests"
+    }
+  ],
+  "reference": [
+    {
+      "type": "DDLS",
+      "name": "{{P}}I_PARTNER_ALL",
+      "file": "reference/i_partner_all.ddls.asddls",
+      "description": "All partners of both lists with a source element"
+    },
+    {
+      "type": "CLAS",
+      "name": "{{P}}T16_TEST",
+      "file": "reference/t16_test.clas.abap",
+      "description": "T16 own tests"
+    }
+  ],
+  "craft_checks": []
+}