feat: migrate to Chronos-2 zero-shot with temperature covariates

fix: correct static type checker error for pyrefly and narrow properties explicitly

feat: upgrade Chronos forecasting engine to Chronos-2 with 8192 token multivariate context window

perf: increase chronos samples to 500 and remove deterministic constraints

feat: remove replay topology button, enforce strict DB event fetching to stop hallucination, bump chronos num_samples to 100

perf: increase chronos sample size to 40 for smoother quantiles without breaking time budget

feat: add backtest target date selector

fix: bypass broken fine-tuned weights and revert to pure daily baseline inference for maximum accuracy

refactor: simplify to pure hourly inference pipeline for fine-tuned chronos

feat: implement chronos-on-chronos ensemble for multi-resolution drift calibration

feat: implement mean-matching ensemble to calibrate chronos output against sarima baseline

fix: add np.asarray cast in tasks.py to resolve type checking error for reshape

feat: overhaul seasonality analysis — ramp dynamics, load composition, demand heatmap, and LLM synthesis

fix: resolve UI output rendering and metrics (PDF buttons, NA metrics, prompt formatting, duplicated season analysis)

fix: replace deprecated datetime.utcnow() with timezone-aware datetime.now(timezone.utc)

UI added and fixed

7 nodes implementation done