v0.5.4

One change since v0.5.3.

• A run of thoughts is one thought. Some endpoints close a reasoning item and open the next as the model goes on thinking, so one long think arrived as ten ✻ Thought for Ns rows in a row. Adjacent thoughts now draw as one block: ✻ Thinking… while the last is still being had, ✻ Thought for 3m 21s once it is over, the newest two rows of the whole run under it, one click or ctrl+o for all of it. The journal and every other surface still carry the items one by one. Plan M79.