{"ml_available":true,"trained":true,"model_version":"NabzBin Market Intelligence Engine v4 - Log-Space Seasonal Decomposition","architecture":"Multiplicative Seasonal Model: alpha[cluster] x beta[month] x gamma[dow] x delta[holiday]","features":["log_baseline[cluster]","beta[cluster,jalali_month]","gamma[cluster,iran_dow]","delta[holiday_type]"],"metrics":{"split":"val","n":1926,"WAPE":16.59,"SMAPE":22.62,"MAE":135.6,"RMSE":768.71},"train_records":9630,"scalability":"1M concurrent users < 2ms"}