Add raw and cleaned Git classroom dataset (claude/dataset_D_git_classroom_activity.csv and _clean.csv) and two Sweetviz HTML reports. Update several lab notebooks (lab02_task1_datasets.ipynb, lab02_task1_datasets_v2b.ipynb, lab02_task2_telemetry_v4.ipynb, lab02_task3_git_activity_solutions.ipynb) and deploy/lab01_task2_telemetry.ipynb to incorporate the new data, cleanup steps, and EDA outputs.
