chore(grimmory): finalize age_pubkey for LXC 130

Fills in the age public key issued by secrets-issuance after
homelab client enrollment completed.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

inventory.yaml

@@ -327,7 +327,7 @@ hosts:
     notes:
     - Docker host for Grimmory (community fork of Booklore). Created 2026-06-29.
     - Migrated from apps LXC 105; MariaDB data carried over (schema-compatible fork).
-    age_pubkey: ''  # filled by homelab client add --finalize-pubkey
+    age_pubkey: age1uellsemnjrzgfg9fxw4jefpy05laxzggwnwhh6ny3wl7alyp6v8q0muxet
   # 123 (claudio-bot) — destroyed 2026-06-04, replaced by Hermes Agent
   # 126 (plato) — destroyed 2026-06-28, notes workspace decommissioned
   zimaos: