Add the training configs used for the golf-overfit and 20-clip synthetic
overfit series exercising every combination of the recent changes:
golf_nonzero / golf_overfit_nonzero -- non-zero-init proj ablation
synth_generic / synth_varied -- prompt-conditioning ablation
(generic vs per-clip caption)
synth_varied_d64 -- id_dim=64 (paper spec)
synth_varied_d64_nobias -- + bias=False on track head
synth_varied_d64_nobias_fixed -- + WANTRACK_FIXED_SAMPLE=1
synth_curriculum -- random-sample warmstart from
a fixed-sample checkpoint
synth_varied_full_val -- max_train_steps=1 harness that
regenerates all 20 val clips
in 3 modes from a checkpoint
synth_sparse_fixed / synth_sparse_random -- 1-per-object + 20 background
extras (Yongqi's recipe)
All resume from the trackwan_1.3b_i2v_control_init family (or the
d64_nobias variant) and enable the new joint text+motion CFG (w_t=3,
w_m=1.5) in track_validation.