fix: gofmt websearch manager

backend/internal/pkg/websearch/manager.go

@@ -152,14 +152,16 @@ func (m *Manager) filterAvailableProviders(ctx context.Context, accountProxyURL
 	return out
 }
 
+// weighted is a provider candidate with computed quota weight.
+type weighted struct {
+	cfg    ProviderConfig
+	weight int64
+}
+
 // selectByQuotaWeight orders candidates by remaining quota weight.
 // Providers with quota_limit=0 (no limit set) get weight 0 and are placed last.
 // Among providers with quota, higher remaining quota = higher priority.
 func (m *Manager) selectByQuotaWeight(ctx context.Context, candidates []ProviderConfig) []ProviderConfig {
-	type weighted struct {
-		cfg    ProviderConfig
-		weight int64
-	}
 	items := make([]weighted, 0, len(candidates))
 	for _, cfg := range candidates {
 		w := int64(0)