configurable bind address + default port 8889

- Add host field to Config (default 0.0.0.0)
- Change default port from 8080 to 8889
- Listen on host:port instead of :port

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

config.yaml.example

@@ -1,4 +1,5 @@
-port: 8080
+host: "0.0.0.0"   # bind address; use 127.0.0.1 to restrict to localhost
+port: 8889
 
 # Optional: full path to winamp.exe — only needed if you want roadamp to
 # launch Winamp for you. Leave empty (or omit) if you start Winamp yourself.

internal/server/server.go

@@ -28,6 +28,7 @@ import (
 // ── Config ────────────────────────────────────────────────────────────────────
 
 type Config struct {
+	Host         string `yaml:"host"`
 	Port         int    `yaml:"port"`
 	WinampPath   string `yaml:"winamp_path"`
 	KillListFile string `yaml:"killist_file"`
@@ -36,7 +37,8 @@ type Config struct {
 
 func loadConfig(path string) (Config, error) {
 	cfg := Config{
-		Port:         8080,
+		Host:         "0.0.0.0",
+		Port:         8889,
 		KillListFile: "killist.dat",
 		ResumeFile:   "resume.dat",
 	}
@@ -83,8 +85,8 @@ func (s *Server) Run() error {
 	go s.restoreResume()
 	go s.killChecker()
 
-	addr := fmt.Sprintf(":%d", s.cfg.Port)
-	log.Printf("roadamp listening on http://localhost%s", addr)
+	addr := fmt.Sprintf("%s:%d", s.cfg.Host, s.cfg.Port)
+	log.Printf("roadamp listening on http://%s", addr)
 	return http.ListenAndServe(addr, s.mux)
 }