feat: initialize issue-spec workflow for Higress (#4059)

Signed-off-by: johnlanni <johnlanni@users.noreply.github.com>
Co-authored-by: johnlanni <johnlanni@users.noreply.github.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.licenserc.yaml

@@ -36,7 +36,9 @@ header:
     - 'pkg/ingress/kube/gateway/istio/testdata'
     - 'release-notes/**'
     - '.cursor/**'
-    - '.claude/**'    
+    - '.claude/**'
+    - '.agents/**'
+    - '.issue-spec/**'
 
   comment: on-failure
 dependency: