fix: fix some little mistake on SA

feat: adding predicted ecg

feat: adding predicted ecg

fix: bypass SA for N<4 segments — plateau filter rejects short/mock signals

fix: fixing SA bug

fix: SA stuck at 1e9 — lower entropy lo bound to 0.0, skip min_clean penalty for N<4

deploy: fix hf deploy

fix: commit src.infrastructure.model code and restrict gitignore model rule to root

feat: adding full working local ETL Pipeline