You failed to quote the July 25th 1945 entry
That's Truman's reaction to the trinity test and is irrelevant to when he was told about the research. Obviously he had a different reaction to the actual bomb compared to a hypothetical bomb, but I would think that would be expected.
There are two articles in this post. The title you complain about is from the one you didn't read.
https://www.aljazeera.com/news/2023/12/25/israel-intensifies-occupied-west-bank-raids-on-christmas-day
https://www.aljazeera.com/gallery/2023/12/24/muted-christmas-as-palestinian-christians-mourn-for-gaza