docs: add LDA section and refine README structure

feat: add LDA topic modeling and include model artifacts

fix: resolve merge conflict in README

update: README.md

update: README.md

chore: clean up comments

update: README.md

update: README.md

feat: add Dockerfile and finalize README

feat: add Streamlit app with model selection and batch processing

feat: save best model and add prediction function

feat: add FastText vectorization and LogReg model on it

feat: add LSTM neural network with Word2Vec embeddings

feat: add Perceptron neural network on Word2Vec

feat: add Word2Vec embeddings and LogReg model on it

feat: add classical ML models (NB, LinearSVC, CatBoost) on TF-IDF

feat: add baseline LogReg model with TF-IDF vectorization

feat: add text preprocessing pipeline (cleaning, stopwords, lemmatization)

feat: add EDA analysis for review dataset