fix: resolve CI pipeline failures

- Rename allSubPtrs to allSubSlice to fix cspell 'Unknown word (Ptrs)'
- Route spinner output through console.GetWriter() with io.Discard
  fallback to prevent stdout writes in tests (CI stdout check)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: vhvb1989

cli/azd/cmd/config_sub_filter.go

@@ -7,6 +7,7 @@ import (
 	"cmp"
 	"context"
 	"fmt"
+	"io"
 	"slices"
 	"strings"
 
@@ -90,7 +91,8 @@ func (a *subFilterSetAction) Run(
 	// Load subscriptions
 	var subscriptions []account.Subscription
 	loadingSpinner := ux.NewSpinner(&ux.SpinnerOptions{
-		Text: "Loading subscriptions...",
+		Text:   "Loading subscriptions...",
+		Writer: spinnerWriter(a.console),
 	})
 
 	err := loadingSpinner.Run(ctx, func(ctx context.Context) error {
@@ -286,7 +288,8 @@ func (a *subFilterRemoveAction) Run(
 	// Load subscriptions for tenant resolution
 	var subscriptions []account.Subscription
 	loadingSpinner := ux.NewSpinner(&ux.SpinnerOptions{
-		Text: "Loading subscriptions...",
+		Text:   "Loading subscriptions...",
+		Writer: spinnerWriter(a.console),
 	})
 
 	err := loadingSpinner.Run(ctx, func(ctx context.Context) error {
@@ -429,3 +432,12 @@ func resolveTenantForFilter(
 	return tenants[selectedIndex].Id,
 		tenants[selectedIndex].DisplayName, nil
 }
+
+// spinnerWriter returns the console's writer for spinner output,
+// falling back to io.Discard when nil (e.g. in tests).
+func spinnerWriter(console input.Console) io.Writer {
+	if w := console.GetWriter(); w != nil {
+		return w
+	}
+	return io.Discard
+}

cli/azd/pkg/prompt/prompt_service.go

@@ -355,11 +355,11 @@ func (ps *promptService) PromptSubscription(
 
 	// If user selected "Show all subscriptions", re-prompt with full list
 	if result != nil && result.Id == ShowAllSubscriptionsOption {
-		allSubPtrs := make(
+		allSubSlice := make(
 			[]*account.Subscription, len(unfilteredSubs),
 		)
 		for i := range unfilteredSubs {
-			allSubPtrs[i] = &unfilteredSubs[i]
+			allSubSlice[i] = &unfilteredSubs[i]
 		}
 
 		return PromptCustomResource(
@@ -368,7 +368,7 @@ func (ps *promptService) PromptSubscription(
 				LoadData: func(
 					ctx context.Context,
 				) ([]*account.Subscription, error) {
-					return allSubPtrs, nil
+					return allSubSlice, nil
 				},
 				DisplayResource: func(
 					subscription *account.Subscription,