Add trainer README: find data at any path, then launch

Add checked launch script run_experiment.sh

Add noisy-latent trainer, instance builders, and run_noise.sh

push code/train/trainer.py

push code/train/train_backtrack.py

push code/train/train_and_evaluate.py

push code/train/main.py

push code/train/evaluater.py

push code/train/data.py

push code/verify_uniform_loader.py

push code/train_backtrack.py

push code/train_and_evaluate.py

push code/test_new_metrics.py

push code/test_instance_epochs.py

push code/show_val_example.py

push code/show_val_cell.py

push code/show_stagewise_cell.py

push code/show_stage1_data.py

push code/sbatch_wave12.sh

push code/sbatch_stage2plus.sh

push code/sbatch_stage1_super.sh

push code/sbatch_multistage_super.sh

push code/sbatch_instance_latent.sh

push code/sbatch_hinge_sneetches.sh

push code/sbatch_gateq_any.sh

push code/sbatch_gateq.sh

push code/sbatch_ceq_multigpu.sh

push code/sbatch_backtrack_chain.sh

push code/run_ceq_eval.sh

push code/probe_q_sampler.py

push code/probe_loss_weight_mask.py

push code/probe_gate_fixed.py

push code/probe_entropy_ceiling.py

push code/probe_ceq_headroom.py

push code/measure_uniformity_floor.py

push code/main.py

push code/interpret_kl_spread.py

push code/hf_sync.py

push code/hf_push_login.py

push code/hf_push_all.py

push code/gen_bigq.py

push code/exposure_report.py

push code/evaluater.py

push code/eval_ceq_ckpt.py

Upload code/wavecurriculum_run/sbatch_backtrack_chain.sh with huggingface_hub

Upload code/wavecurriculum_run/sbatch_multistage_super.sh with huggingface_hub

Upload code/wavecurriculum_run/probe_ceq_headroom.py with huggingface_hub

Upload code/wavecurriculum_run/test_new_metrics.py with huggingface_hub

Upload code/wavecurriculum_run/hf_push_login.py with huggingface_hub

Upload code/wavecurriculum_run/train/main.py with huggingface_hub