Snapshot: new training tasks (balanced generation), docs

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

tasks_gen/train/G1923/task.json

@@ -0,0 +1,85 @@
+{
+  "id": "G1923",
+  "category": "E",
+  "object_type": "DDLS",
+  "difficulty": 3,
+  "release_target": "v816",
+  "expected_outcome": "implement",
+  "budget": {
+    "max_tool_calls": 80,
+    "max_activations": 20
+  },
+  "seed": [
+    {
+      "type": "TABL",
+      "name": "{{P}}FORGJOB",
+      "file": "seed/forgjob.tabl.asabap",
+      "description": "Job of the blacksmith's forge"
+    },
+    {
+      "type": "TABL",
+      "name": "{{P}}FORGART",
+      "file": "seed/forgart.tabl.asabap",
+      "description": "Forged article"
+    },
+    {
+      "type": "TABL",
+      "name": "{{P}}FORGCUS",
+      "file": "seed/forgcus.tabl.asabap",
+      "description": "Customer of the forge"
+    },
+    {
+      "type": "DDLS",
+      "name": "{{P}}I_FORGE_JOB",
+      "file": "seed/i_forge_job.ddls.asddls",
+      "description": "Legacy view with repeated join logic"
+    }
+  ],
+  "contract": [
+    {
+      "type": "DDLS",
+      "name": "{{P}}I_FORGE_JOB",
+      "fields": [
+        "JOB_ID",
+        "JOB_DATE",
+        "ARTICLE_NAME",
+        "WEIGHT_KG",
+        "CUSTOMER_NAME",
+        "CITY",
+        "WORK_MIN",
+        "EFFORT"
+      ]
+    }
+  ],
+  "out_of_scope": [
+    "{{P}}FORGJOB",
+    "{{P}}FORGART",
+    "{{P}}FORGCUS"
+  ],
+  "hidden_tests": [
+    {
+      "type": "CLAS",
+      "name": "{{P}}FORGE_HIDDEN",
+      "file": "hidden/forge_hidden.clas.abap",
+      "description": "Hidden tests for the reworked view"
+    }
+  ],
+  "reference": [
+    {
+      "type": "DDLS",
+      "name": "{{P}}I_FORGE_JOB",
+      "file": "reference/i_forge_job.ddls.asddls",
+      "description": "Reworked view, each source table joined once"
+    },
+    {
+      "type": "CLAS",
+      "name": "{{P}}FORGE_TEST",
+      "file": "reference/forge_test.clas.abap",
+      "description": "Own tests for the view"
+    }
+  ],
+  "craft_checks": [
+    "No source table of the view appears in the join more than once.",
+    "The view contains no duplicated join condition."
+  ]
+}