Add auto-generated subdomain feature

When a base domain is configured on a host (e.g., apps.example.com),
deployments automatically get a subdomain ({name}.apps.example.com).
Custom --domain can still be provided to route both domains.

- Add BaseDomain field to Host state
- Add --base-domain flag to host init
- Add 'ship host set-domain' command to update base domain
- Update deploy flow to auto-generate subdomains
- Fix error display (errors were being silently swallowed)
- Remove placeholder email from Caddyfile template

1 files changed, 5 insertions, 1 deletions

diff --git a/cmd/ship/list.go b/cmd/ship/list.go
index a5b8df3..404ca68 100644
--- a/cmd/ship/list.go
+++ b/cmd/ship/list.go
@@ -43,7 +43,11 @@ func runList(cmd *cobra.Command, args []string) error {
                 if app.Type == "app" {
                         port = fmt.Sprintf(":%d", app.Port)
                 }
-                fmt.Fprintf(w, "%s\t%s\t%s\t%s\n", name, app.Type, app.Domain, port)
+                domain := app.Domain
+                if domain == "" {
+                        domain = "-"
+                }
+                fmt.Fprintf(w, "%s\t%s\t%s\t%s\n", name, app.Type, domain, port)
         }
         w.Flush()
         return nil