fix(acceptance): 按隔离额度执行平台降级路由

让 acceptance 候选负载读取同一 Run ID 下的并发、RPM 和 TPM 计数器，并在单个平台模型额度不足时继续尝试下一候选，生产与 canary 额度作用域保持不变。\n\n补齐本地容量控制器对宁波和香港测试 Worker 的最小 RBAC，避免初次应用生产反亲和配置时发生滚动死锁，并将突发负载对齐到完整限流窗口。\n\n验证：\n- go test ./internal/runner ./internal/store -count=1\n- go vet ./internal/runner ./internal/store\n- bash -n scripts/acceptance/local-cluster.sh scripts/acceptance/provider-burst.sh scripts/acceptance/run-local-acceptance.sh\n- shellcheck -x scripts/acceptance/local-cluster.sh scripts/acceptance/provider-burst.sh scripts/acceptance/run-local-acceptance.sh\n- kubectl apply --dry-run=client -f deploy/kubernetes/local-acceptance/capacity-controller-rbac.yaml

scripts/acceptance/local-cluster.sh

@@ -599,12 +599,20 @@ render_and_apply_application() {
   chmod 0600 "$rendered"
   kubectl --context "$context" -n "$namespace" apply \
     -f "$repository_root/deploy/kubernetes/production/service-account-rbac.yaml" >/dev/null
+  kubectl --context "$context" -n "$namespace" apply \
+    -f "$manifest_root/capacity-controller-rbac.yaml" >/dev/null
   kubectl --context "$context" -n "$namespace" apply -f "$manifest_root/local-config.yaml" >/dev/null
   kubectl --context "$context" -n "$namespace" apply -f "$rendered" >/dev/null
+  kubectl --context "$context" -n "$namespace" scale \
+    deployment/easyai-worker-hongkong --replicas=0 >/dev/null
+  kubectl --context "$context" -n "$namespace" rollout status \
+    deployment/easyai-worker-hongkong --timeout=5m >/dev/null
   for workload in easyai-worker-ningbo easyai-worker-hongkong; do
     kubectl --context "$context" -n "$namespace" patch deployment "$workload" \
       --type=merge -p='{"spec":{"template":{"spec":{"affinity":null}}}}' >/dev/null
   done
+  kubectl --context "$context" -n "$namespace" scale \
+    deployment/easyai-worker-hongkong --replicas=2 >/dev/null
 
   for workload in easyai-api-ningbo easyai-worker-ningbo; do
     kubectl --context "$context" -n "$namespace" set env deployment/"$workload" \