chore: land project scaffold plugin on main

.project-docs/30-worklog/current-state.md

@@ -9,7 +9,9 @@ This file is the integrated default-branch snapshot. Feature tasks record progre
   `4bc3e0ea5331a7d3f3576768c0119c02c0f0f952` and
   `2bc3e4420852388ce46841e05c1cbf49e80b250c`, then canonically reconciled by tasks
   `20260904-reconcile-project-scaffold-f7b4d2a9` and
-  `20260904-project-scaffold-integration-client-4f2a8c71`. New projects use one
+  `20260904-project-scaffold-integration-client-4f2a8c71`; verified integration head
+  `b92e7ba5bbde186626d93787ca358fbf4c2523a3` was landed on local `main` by task
+  `20260904-project-scaffold-main-merge-e7b4c291`. New projects use one
   `interactive_ai_app` / “交互式 AI 应用” type or `custom`; historical `mini_game`
   and `mini_program` values normalize at the read boundary without a batch rewrite.
   Project creation owns only `.makelore/project.json` and `knowledge/`. The official