fix: tasks.parquet format - set task text as DataFrame index for LeRobot v3.0 compatibility

Add stats.json for normalization

Fix info.json: update total_tasks from 21292 to 22199

Fix tasks.parquet: add missing task_index 21292-22198 (907 tasks)

Add video_path field to info.json

Upload corrected files (batch 1)

Delete old files (batch 1)

Upload meta/info.json with huggingface_hub

Upload batch 1