This is the bounded read/review engine shared by persona memory controllers. It is not the current-memory controller and it does not own a host-specific memory canon. The current Zhuyuan real-day writer and day/month/year projections live in `../persona-daily-fractal-memory/`.
-`review`: reviews one leaf or the full tree for causal transitions, non-generic why, rejected-route reasons, and retrievable sources. It reports problems to the current model; it never writes memory itself.
The optional Codex hook is valid only for `SessionStart`. There are intentionally no user-prompt, tool-use, pre-compact, or post-compact hooks. Host adapters may signal an event or compaction boundary, but only the persona-authored daily controller may write causal memory.
