chore: rename API hostname example from api. to hypeman.

Update example comments to use `hypeman.<hostname>.kernel.sh` instead of
`api.<hostname>.kernel.sh` for the API ingress hostname pattern.

Author: hiroTamada

cmd/api/config/config.go

@@ -104,7 +104,7 @@ type Config struct {
 	CloudflareApiToken string // Cloudflare API token
 
 	// API ingress configuration - exposes Hypeman API via Caddy
-	ApiHostname     string // Hostname for API access (e.g., api.hostname.kernel.sh). Empty = disabled.
+	ApiHostname     string // Hostname for API access (e.g., hypeman.hostname.kernel.sh). Empty = disabled.
 	ApiTLS          bool   // Enable TLS for API hostname
 	ApiRedirectHTTP bool   // Redirect HTTP to HTTPS for API hostname
 

lib/ingress/config.go

@@ -145,7 +145,7 @@ func (c *ACMEConfig) IsTLSConfigured() bool {
 
 // APIIngressConfig holds configuration for exposing the Hypeman API via Caddy.
 type APIIngressConfig struct {
-	// Hostname is the hostname for API access (e.g., "api.hostname.kernel.sh").
+	// Hostname is the hostname for API access (e.g., "hypeman.hostname.kernel.sh").
 	// Empty means API ingress is disabled.
 	Hostname string