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, 6 insertions, 2 deletions

diff --git a/cmd/ship/host/init.go b/cmd/ship/host/init.go
index ea25922..27f67af 100644
--- a/cmd/ship/host/init.go
+++ b/cmd/ship/host/init.go
@@ -26,6 +26,7 @@ func runInit(cmd *cobra.Command, args []string) error {
         if host == "" {
                 host = st.GetDefaultHost()
         }
+        baseDomain, _ := cmd.Flags().GetString("base-domain")
 
         if host == "" {
                 return fmt.Errorf("--host is required")
@@ -64,7 +65,6 @@ func runInit(cmd *cobra.Command, args []string) error {
 
         fmt.Println("-> Configuring Caddy...")
         caddyfile := `{
-        email admin@example.com
 }
 
 import /etc/caddy/sites-enabled/*
@@ -100,7 +100,11 @@ import /etc/caddy/sites-enabled/*
                 fmt.Println("  Caddy is active")
         }
 
-        st.GetHost(host)
+        hostState := st.GetHost(host)
+        if baseDomain != "" {
+                hostState.BaseDomain = baseDomain
+                fmt.Printf("  Base domain: %s\n", baseDomain)
+        }
         if st.GetDefaultHost() == "" {
                 st.SetDefaultHost(host)
                 fmt.Printf("  Set %s as default host\n", host)