Update data catalog: v2 fixed train sets (natural Quirke enrichment, no forced hard)

data_catalog.json

@@ -89,6 +89,86 @@
     "status": "ACTIVE",
     "notes": "Used during training for per-epoch accuracy. Downloaded by get_epoch_eval_set()."
   },
+  {
+    "path": "fixed_train/train_100K_seed42.pt",
+    "description": "Fixed train set 100K: Quirke enrichment, seed=42, natural hard distribution",
+    "version": "v2",
+    "n_examples": 100000,
+    "n_splits": null,
+    "seed": 42,
+    "status": "ACTIVE",
+    "notes": "Replaces on-the-fly generation. All models must train on this. Metadata in _meta.json."
+  },
+  {
+    "path": "fixed_train/train_100K_seed42_meta.json",
+    "description": "Metadata for 100K train set: split distributions",
+    "version": "v2",
+    "n_examples": null,
+    "n_splits": null,
+    "seed": null,
+    "status": "ACTIVE",
+    "notes": "Split counts, op counts for auditing"
+  },
+  {
+    "path": "fixed_train/train_10K_seed42.pt",
+    "description": "Fixed train set 10K: Quirke enrichment, seed=42, natural hard distribution",
+    "version": "v2",
+    "n_examples": 10000,
+    "n_splits": null,
+    "seed": 42,
+    "status": "ACTIVE",
+    "notes": "Replaces on-the-fly generation. All models must train on this. Metadata in _meta.json."
+  },
+  {
+    "path": "fixed_train/train_10K_seed42_meta.json",
+    "description": "Metadata for 10K train set: split distributions",
+    "version": "v2",
+    "n_examples": null,
+    "n_splits": null,
+    "seed": null,
+    "status": "ACTIVE",
+    "notes": "Split counts, op counts for auditing"
+  },
+  {
+    "path": "fixed_train/train_25K_seed42.pt",
+    "description": "Fixed train set 25K: Quirke enrichment, seed=42, natural hard distribution",
+    "version": "v2",
+    "n_examples": 25000,
+    "n_splits": null,
+    "seed": 42,
+    "status": "ACTIVE",
+    "notes": "Replaces on-the-fly generation. All models must train on this. Metadata in _meta.json."
+  },
+  {
+    "path": "fixed_train/train_25K_seed42_meta.json",
+    "description": "Metadata for 25K train set: split distributions",
+    "version": "v2",
+    "n_examples": null,
+    "n_splits": null,
+    "seed": null,
+    "status": "ACTIVE",
+    "notes": "Split counts, op counts for auditing"
+  },
+  {
+    "path": "fixed_train/train_50K_seed42.pt",
+    "description": "Fixed train set 50K: Quirke enrichment, seed=42, natural hard distribution",
+    "version": "v2",
+    "n_examples": 50000,
+    "n_splits": null,
+    "seed": 42,
+    "status": "ACTIVE",
+    "notes": "Replaces on-the-fly generation. All models must train on this. Metadata in _meta.json."
+  },
+  {
+    "path": "fixed_train/train_50K_seed42_meta.json",
+    "description": "Metadata for 50K train set: split distributions",
+    "version": "v2",
+    "n_examples": null,
+    "n_splits": null,
+    "seed": null,
+    "status": "ACTIVE",
+    "notes": "Split counts, op counts for auditing"
+  },
   {
     "path": "sub_handcrafted/test.parquet",
     "description": "Handcrafted subtraction test cases",