v0.1.0

Drop deprecated img/ assets and Korean WIP README

After the ROS-free / catkin-free refactor the README pulls demo media
from GitHub user-attachments, so the in-tree gifs, paper figures, and
per-sequence comparison stills are no longer referenced from any
tracked doc. Removes ~40M of orphan content:

- img/erasor_kitti_small_map_results.zip (6.7M)
- img/{kitti05,kittimapgen}.gif and img/demo/ (~26M)
- img/icra21_*.png (old ERASOR v1 paper figures)
- img/{00,01,02,05,07}/ per-sequence comparison stills
- img/{fig_overview,finish_command,labeler_test}.png, img/Description.md
- README_mos.md (Korean WIP doc, not linked from anywhere)

.git history still carries the old blobs; reclaiming that requires a
filter-repo + force-push, which I'll leave to a separate explicit ask.