[Backend TODO] Complete implementation in src/infinity/modern-ops.lisp

This backend file contains TODO comments for pending work:

**File:** `src/infinity/modern-ops.lisp`

**Items to complete:**
- Line 597: `TODO this should flag recent staff journal entries as well.`

**Priority:** Medium
**Component:** Backend (Common Lisp)

Open src/infinity/modern-ops.lisp and inspect the code around line 597 and its TODO comment. Trace how recent journal entries are currently flagged, then define done as staff journal entries being included in that behavior; the issue does not name a test or test command.

索引モデルが issue の本文から書いたものです。