Refactor documentation and code comments for clarity and consistency

Refactor code structure for improved readability and maintainability

fix(numeric): BMI-band fallback for out-of-distribution profiles

fix(numeric): map predict_proba through label_encoder to restore severity-ordered probabilities

cv: add OpenAI vision branch and LLM-as-judge ensemble

cv: harden ViT loader for Apple Silicon (safetensors + libomp guards); load .env in app

numeric: fix LogisticRegression API for sklearn 1.8; retrain artifacts

nlp: RAG orchestrator, template baseline and OpenAI generator

nlp: held-out evaluation queries and retriever scoring harness

nlp: guideline corpus, TF-IDF and dense retrievers

cv: 101-class nutrition lookup table and offline consistency checker

cv: pretrained ViT food classifier with offline fallback

numeric: dual-task training script and inference wrapper

numeric: add UCI Obesity loader and Mifflin-St Jeor helpers

init: project scaffold and gitignore