fix(provision): reconcile channel pricing and hosted access

internal/pack/loader.go

@@ -157,6 +157,7 @@ func validateProviders(providers []ProviderManifest) error {
 	seen := make(map[string]struct{}, len(providers))
 	for _, provider := range providers {
 		providerID := strings.TrimSpace(provider.ProviderID)
+		missingDefaultModel := firstMissingDefaultModel(provider.DefaultModels, provider.ChannelTemplate.ModelMapping)
 		switch {
 		case providerID == "":
 			return fmt.Errorf("provider manifest: provider_id is required")
@@ -180,6 +181,10 @@ func validateProviders(providers []ProviderManifest) error {
 			return fmt.Errorf("provider %q: channel_template.name is required", providerID)
 		case len(provider.ChannelTemplate.ModelMapping) == 0:
 			return fmt.Errorf("provider %q: channel_template.model_mapping must not be empty", providerID)
+		case !containsProviderModel(provider.ChannelTemplate.ModelMapping, provider.SmokeTestModel):
+			return fmt.Errorf("provider %q: channel_template.model_mapping must include smoke_test_model %q", providerID, provider.SmokeTestModel)
+		case missingDefaultModel != "":
+			return fmt.Errorf("provider %q: channel_template.model_mapping must cover default_models, missing %q", providerID, missingDefaultModel)
 		case strings.TrimSpace(provider.PlanTemplate.Name) == "":
 			return fmt.Errorf("provider %q: plan_template.name is required", providerID)
 		case provider.PlanTemplate.ValidityDays <= 0:
@@ -247,3 +252,29 @@ func contains(items []string, target string) bool {
 	}
 	return false
 }
+
+func containsProviderModel(modelMapping map[string]string, target string) bool {
+	trimmedTarget := strings.TrimSpace(target)
+	if trimmedTarget == "" {
+		return false
+	}
+	for sourceModel, mappedModel := range modelMapping {
+		if strings.TrimSpace(sourceModel) == trimmedTarget || strings.TrimSpace(mappedModel) == trimmedTarget {
+			return true
+		}
+	}
+	return false
+}
+
+func firstMissingDefaultModel(defaultModels []string, modelMapping map[string]string) string {
+	for _, model := range defaultModels {
+		trimmedModel := strings.TrimSpace(model)
+		if trimmedModel == "" {
+			continue
+		}
+		if !containsProviderModel(modelMapping, trimmedModel) {
+			return trimmedModel
+		}
+	}
+	return ""
+}