v0.26.2 — show full app URL on deploy page

Domain field now displays subdomain.base_domain (e.g. wiki.demo-felhom.eu)
instead of just the base domain, matching the app card display.
Applies to both pre-deploy and post-deploy settings pages.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

controller/internal/stacks/deploy.go

@@ -387,7 +387,13 @@ func (m *Manager) PreviewDeployValues(name string) (map[string]string, error) {
 	for _, field := range meta.DeployFields {
 		switch field.Type {
 		case "domain":
-			result[field.EnvVar] = m.cfg.Customer.Domain
+			// Show the full URL the app will be reachable at (subdomain.base_domain).
+			// This is informational only — DeployStack always stores the base domain.
+			if meta.Subdomain != "" {
+				result[field.EnvVar] = meta.Subdomain + "." + m.cfg.Customer.Domain
+			} else {
+				result[field.EnvVar] = m.cfg.Customer.Domain
+			}
 		case "secret":
 			if field.Generate == "" {
 				continue