Fix README (was empty): real accept_len + distribution-shift note

best158 (step95400, K2.6 val-best): overwrite ckpt100; README updated with real accept_len + distribution-shift note

v3 fine-tune: L2-SP anchor + ttt=4 off-policy (accept_len 2.345, pos 0.648/0.419/0.278)

Update to constant-LR refinement best checkpoint (epoch 163, val_loss 3.608)

README: add full_acc@0 row + cond_acc@0 note (complete per-position table)

Continual FT from lightseek kimi-k2.6-eagle3-mla (Camelot, 10k steps): val_loss -27%, weak-position acc +45-116%

initial commit