Add `full_task_1x_standard/` in the standard RoboLab output-folder layout: one root `episode_results.jsonl` and 120 task directories, covering 1,200 single-environment episodes (10 runs per task).

Contents: 1,200 HDF5 files, 1,200 per-environment event logs, 2,400 observation/viewport videos, 120 environment configurations, and the merged results JSONL (4,921 files; 36,880,104,953 bytes). Existing repository data is preserved.

Validation:
- All 4,920 task files match the source shards byte-for-byte by SHA-256.
- All 1,200 result entries resolve to matching HDF5 demos and JSON logs; trajectory step counts and success flags agree.
- Official RoboLab `analysis/read_results.py` reads this folder directly: 120 tasks, 685/1,200 successes (57.1%).

Recording caveats: HDF5 contents are preserved from the original runs. `subtask` array lengths differ from action trajectory lengths in 1,190 episodes; use JSON event logs and their explicit `step` fields for event timing. HDF5 observations are absent, and initial-state datasets contain two identical rows. This PR standardizes the directory layout without rewriting recordings.