chore: route reviews to maintainer team (#1441)

* chore: route reviews to maintainer team

* docs: add Alfred as automation maintainer

---------

Co-authored-by: Alfred <alfred@fissionai.io>

Author: TabishB

.github/CODEOWNERS

@@ -1,2 +1,2 @@
 # Default code ownership
-* @TabishB
+* @Fission-AI/openspec-maintainers

MAINTAINERS.md

@@ -7,6 +7,13 @@ People who maintain and guide OpenSpec.
 | Name | GitHub | Role |
 |------|--------|------|
 | Tabish Bidiwale | [@TabishB](https://github.com/TabishB) | Lead maintainer |
+| Clay Good | [@clay-good](https://github.com/clay-good) | Maintainer |
+
+## Automation Maintainers
+
+| Name | GitHub | Role |
+|------|--------|------|
+| Alfred | [@alfred-openspec](https://github.com/alfred-openspec) | Automation maintainer |
 
 ## Advisors