meta: ignore AGENTS.override.md

Add AGENTS.override.md to the .gitignore AI assistants rules section
so that per-operating-user agent override files stay untracked.

Signed-off-by: Matteo Collina <hello@matteocollina.com>
Assisted-by: pi
PR-URL: #66629
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Paolo Insogna <paolo@cowtech.it>

Author: mcollina

.gitignore

@@ -172,6 +172,7 @@ install_manifest.txt
 
 # === Rules for AI assistants ===
 CLAUDE.md
+AGENTS.override.md
 
 # === Global Rules ===
 # Keep last to avoid being excluded