fix

feat: Update default caption style to `on_screen_text_top`, add caption style aliases in video renderer, and remove `test_oneup_service.py`.

feat: Add `CAPTION_STYLE` environment variable, new text clip test configurations, and adjust `group_words_by_time_and_width` parameter.

feat: Standardize temporary GCS uploads to a dedicated bucket, refactor video deletion logic to preserve recent files or clear folders, and fix a workflow environment typo.

feat: Implement centralized logging with colored output, verbose control, and updated log levels across the application.