fix: add missing closing brace and #[test] attribute in context.rs

The permission_decision_equality test was missing its closing brace,
causing it to swallow the not_found_returns_404_status test function.
This was likely caused by a bad merge conflict resolution.

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

server/src/http/context.rs

@@ -106,6 +106,9 @@ mod tests {
         assert_eq!(PermissionDecision::AlwaysAllow, PermissionDecision::AlwaysAllow);
         assert_ne!(PermissionDecision::Deny, PermissionDecision::Approve);
         assert_ne!(PermissionDecision::Approve, PermissionDecision::AlwaysAllow);
+    }
+
+    #[test]
     fn not_found_returns_404_status() {
         let err = not_found("item not found".to_string());
         assert_eq!(err.status(), StatusCode::NOT_FOUND);