Perseus v1.0.17 — @memory Recent Activity fix + render/brand fixes

Fixed

• @memory Recent Activity no longer renders empty (#670, HIGH) when the background harvest writes session entities to the vault instead of Perseus checkpoints. The narrative render now falls back to a vault recall of recent session-category memories (render-only, never persisted; no-op when the vault is unavailable/empty; never fires when checkpoint activity exists).
• perseus render -o /dev/null (or any non-regular output target) no longer crashes with PermissionError (#672) — the atomic writer detects a non-regular target and writes through directly.

Changed

• Remaining old-brand labels on the @memory surface route through the Perseus Vault brand (#666): the rendered narrative title (# Mnēmē — … → # Perseus Vault — …, visible in every AGENTS.md), the perseus memory show/status/query/doctor output, and stale/compact notes.

Full detail in CHANGELOG.md.