Introduce PriorityBasedScheduling feature gate and enable it in develpment enviornment

Signed-off-by: RainbowMango <qdurenhongcai@gmail.com>

artifacts/deploy/karmada-controller-manager.yaml

@@ -33,7 +33,7 @@ spec:
             - --cluster-status-update-frequency=10s
             - --failover-eviction-timeout=30s
             - --controllers=*,hpaScaleTargetMarker,deploymentReplicasSyncer
-            - --feature-gates=Failover=true,PropagationPolicyPreemption=true,MultiClusterService=true,StatefulFailoverInjection=true
+            - --feature-gates=AllAlpha=true,AllBeta=true
             - --health-probe-bind-address=0.0.0.0:10357
             - --v=4
           livenessProbe:

artifacts/deploy/karmada-scheduler.yaml

@@ -48,6 +48,7 @@ spec:
             - --scheduler-estimator-ca-file=/etc/karmada/pki/scheduler-estimator-client/ca.crt
             - --scheduler-estimator-cert-file=/etc/karmada/pki/scheduler-estimator-client/tls.crt
             - --scheduler-estimator-key-file=/etc/karmada/pki/scheduler-estimator-client/tls.key
+            - --feature-gates=AllAlpha=true,AllBeta=true
             - --v=4
           volumeMounts:
             - name: karmada-config

pkg/features/features.go

@@ -63,6 +63,15 @@ const (
 	// owner: @mszacillo, @XiShanYongYe-Chang
 	// alpha: v1.12
 	StatefulFailoverInjection featuregate.Feature = "StatefulFailoverInjection"
+
+	// PriorityBasedScheduling controls whether the Priority-Based Scheduling feature is enabled.
+	// When enabled, the scheduler prioritizes applications with higher priority values, ensuring they
+	// are scheduled before lower-priority ones. This is useful for cluster environments where critical
+	// workloads must be processed first to meet SLA requirements.
+	//
+	// owner: @LeonZh0u, @seanlaii, @wengyao04, @whitewindmills, @zclyne
+	// alpha: v1.13
+	PriorityBasedScheduling featuregate.Feature = "PriorityBasedScheduling"
 )
 
 var (
@@ -83,6 +92,7 @@ var (
 		MultiClusterService:               {Default: false, PreRelease: featuregate.Alpha},
 		ResourceQuotaEstimate:             {Default: false, PreRelease: featuregate.Alpha},
 		StatefulFailoverInjection:         {Default: false, PreRelease: featuregate.Alpha},
+		PriorityBasedScheduling:           {Default: false, PreRelease: featuregate.Alpha},
 	}
 )