Pipeline controller: plan 2 (hard +, error +50 %), backlog throttle, 2 trajectory workers, stop rules, summaries every 50; budget reserve

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

tasks_gen/train/G1037/task.json

@@ -0,0 +1,50 @@
+{
+  "id": "G1037",
+  "category": "F",
+  "object_type": "CLAS",
+  "difficulty": 2,
+  "release_target": "v816",
+  "expected_outcome": "implement",
+  "budget": {
+    "max_tool_calls": 60,
+    "max_activations": 15
+  },
+  "seed": [
+    {
+      "type": "CLAS",
+      "name": "{{P}}TUNE_RATES",
+      "file": "seed/tune_rates.clas.abap",
+      "description": "Price list of the tuning service and the travel constants. The spec does not give its signature."
+    }
+  ],
+  "contract": [
+    {
+      "type": "CLAS",
+      "name": "{{P}}PIANO_PRICER"
+    }
+  ],
+  "out_of_scope": [
+    "{{P}}TUNE_RATES"
+  ],
+  "hidden_tests": [
+    {
+      "type": "CLAS",
+      "name": "{{P}}T42_HIDDEN",
+      "file": "hidden/t42_hidden.clas.abap",
+      "description": "T42 hidden tests for the piano tuning charge"
+    }
+  ],
+  "reference": [
+    {
+      "type": "CLAS",
+      "name": "{{P}}PIANO_PRICER",
+      "file": "reference/piano_pricer.clas.abap",
+      "description": "Piano tuning charge calculator",
+      "testclasses_file": "reference/piano_pricer.testclasses.abap"
+    }
+  ],
+  "craft_checks": [
+    "method_length",
+    "db_operation_in_loop"
+  ]
+}