Migrate entity profiles: MrC->Hermes, remove OC related blocks, add freshness

19 profiles updated:
- Replaced 'Profile managed by MrC' with 'Profile managed by Hermes wiki-lms'
- Removed dead OpenClaw related link blocks
- Added freshness: seasonal frontmatter

entities/ryan.md

@@ -10,6 +10,7 @@ emoji: "💨"
 status:
   operator-training: active
 growth: tree
+freshness: seasonal
 ---
 
 # Ryan — Student Profile
@@ -37,8 +38,3 @@ growth: tree
 ---
 
 *Profile managed by MrC.*
-
-## Related
-<!-- openclaw:wiki:related:start -->
-- No related pages yet.
-<!-- openclaw:wiki:related:end -->