Add reasoning SFT v3 encoding manifest

candidates/budgie-alignment-v2/reasoning-sft-then-rl-v3/recovery/v3_sft_encoding_manifest.json

@@ -0,0 +1,10 @@
+{
+  "raw_records": 926,
+  "encoded": 908,
+  "math": 800,
+  "info": 108,
+  "mean_tokens": 576.6332599118942,
+  "mean_response_tokens": 441.8458149779736,
+  "max_tokens": 1536,
+  "seconds": 14.342991828918457
+}