Adds library_name to the model card, and pipeline_tag where it was missing.
Brings the config and card licenses into agreement, and repairs the variant
declarations that did not match the files actually published here.
Previously fp32 on the belief that static-activation int8 was unstable across
dynamic input sizes. Re-measured: correlation 0.956-0.994 against eager fp32
from 640 to 1280 square, and on-device the int8 build returns the same
detections ~15% faster end to end at 23.9 MB instead of 31.1 MB. The SVTR
recognizer stays fp32.
Re-export under the get_model_schema contract; restructure to the MODEL_SPEC layout
