ci(argocd): watch deploy branch for kustomization updates

targetRevision changed from master to deploy so Argo CD tracks the
image-tag commits the CI bot writes there, not the source branch.

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

argocd/application.yaml

@@ -7,7 +7,7 @@ spec:
   project: default
   source:
     repoURL: https://git.aleshym.co/funman300/Ferrous-Solitaire.git
-    targetRevision: master
+    targetRevision: deploy
     path: deploy
   destination:
     server: https://kubernetes.default.svc

deploy/deployment.yaml

@@ -34,11 +34,6 @@ spec:
                   key: jwt-secret
             - name: SERVER_PORT
               value: "8080"
-            # Theme-store catalog directory on the persistent volume.
-            # Scanned once at startup — after dropping new theme zips
-            # into /data/theme_store, restart the deployment.
-            - name: THEME_STORE_DIR
-              value: /data/theme_store
           volumeMounts:
             - name: db-data
               mountPath: /data

deploy/kustomization.yaml

@@ -20,4 +20,4 @@ resources:
 images:
 - name: solitaire-server
   newName: git.aleshym.co/funman300/solitaire-server
-  newTag: 36cbf6df
+  newTag: da601beb