This is great and thanks for publishing it.
It does a good job of showing that solo play doesn't require an exhaustive journaling session. I know there are those who like it that way, but for others (like me) it can feel like a self-imposed homework assignment, and it can turn into an OCD slog when the point is to have fun. Your unified and simple notation system really works in that sense.
I also like that you can get a snapshot of numerous sessions with a quick look. With your examples, in just a couple seconds I could get a rich sense of what happened over minutes or even hours of play.
Nice work!