Sync from GitHub Actions

Sync from GitHub Actions

Sync from GitHub Actions

Sync from GitHub Actions

fix(ui): fallback to euc-kr encoding when reading MS Excel CSV files to fix korean rendering

fix(ui): frontend chart and table now display confidence intervals (yhat_lower, yhat_upper)

fix: status polling startsWith error, add TimesFM nav link to all HTML pages

feat: add hybrid llm link to navigation menu across all frontend pages

Add a copyright phrase

Add models:LightGBM,Theta, ETS

fix: change upload icon

fix: adding reset button

Creating a new common data profiling model, etc.

Add ARIMA/SARIMA models