docs: correct post-annotation byte totals

docs: clarify evaluation aggregation

models: add NoStatic legacy two-step comparison

docs: finalize release manifest and experiment semantics

models: add main MIP and ChiUNet checkpoints

models: add NatureIK diffusion UNet checkpoints

models: add main recovery checkpoints

models: add RoboTwin checkpoints

models: add FK weight ablation checkpoints

models: add pure MLP IK checkpoints

docs: add MIT license text

docs: expand model interface, safety, and attribution

models: add NoStatic joint-loss comparison checkpoint

docs: add MimicIK model card and release manifest

initial commit