Restore VETime evaluation and document the model
The model repository lacks the top-level evaluation package imported by Test_TSB.py. Restore evaluation sources from yyyangcoder/VETime at 4fbc56a95b4ba2d986c3c923ee646e92afafe4fa and add the missing public get_metrics entry point.
The new compatibility protocol respects supplied predictions, excludes padding before three-sigma calibration, and computes fixed-prediction metrics without label-based threshold search. Test_TSB.py now forwards --num_workers. Upstream optimized and legacy helper code is retained for reference, with compatibility limits documented.
Add PyTorch model-card metadata, links to the organization Space and GitHub source, pinned external checkpoint download commands, and an evaluation guide describing inputs, outputs, metric definitions, and limitations. Checkpoints remain in yyyang0/VETime-checkpoints.
Validation: six regression tests passed; Python files parsed successfully. No full benchmark or new performance claims.