REFACTOR(repo): standardize taint to control-plane

- Change node-role.kubernetes.io/master to control-plane
- Update velero, zot, postgresql, minio tolerations
- Change effect from NoExecute to NoSchedule (K3s standard)

minio/helm-values.yaml

@@ -96,11 +96,11 @@ affinity:
                   - minio
           topologyKey: kubernetes.io/hostname
 
-# Tolerations for master node (minio-0 runs on master)
+# Tolerations for control-plane node (minio-0 runs on control-plane)
 tolerations:
-  - key: "node-role.kubernetes.io/master"
+  - key: "node-role.kubernetes.io/control-plane"
     operator: "Exists"
-    effect: "NoExecute"
+    effect: "NoSchedule"
 
 # Prometheus metrics
 metrics: