Add webKinPred adapter for local CatPred inference

[Vedasheersh]

Summary

• add a webKinPred-compatible CatPred adapter entrypoint for local subprocess execution
• allow the inference pipeline to consume precomputed protein records and cached per-residue ESM tensors
• bridge webKinPred seq_id-style caching to CatPred's required per-residue ESM2 cache layout

Verification

• .venv/bin/python -m py_compile catpred/integration/__init__.py catpred/integration/webkinpred_adapter.py catpred/inference/service.py catpred/inference/types.py catpred/data/utils.py
• 1-row adapter smoke test for Ki
• 1-row adapter smoke test for kcat