docs(project-state): correct the B2p publish sha (amended commit id)

docs/project-state.md

@@ -760,7 +760,7 @@ start, so publishing added no pages. The number in that message is wrong; the de
   carry **no prose links** — every post they would naturally cite is dated later, and a backdated post may only link
   backwards. Their "related posts" rows are the theme's automatic ones, which every backdated post already has.
 
-**Step B2p — (unplanned) The commit-churn post.** ✅ Published 2026-10-18 (`55b1f08`), after the owner's read and a voice rewrite
+**Step B2p — (unplanned) The commit-churn post.** ✅ Published 2026-10-18 (`0d73842`), after the owner's read and a voice rewrite
 
 | Slug | Category | `pubDate` | Source |
 |---|---|---|---|