feat: add api security, update services list and add gitignore

cmd/server/main.go

@@ -16,6 +16,7 @@ var (
 	services = []models.Service{}
 	mu       sync.Mutex
 	dataFile = "services.json"
+	apiToken = "ENVGUARD_SECRET_TOKEN"
 )
 
 func main() {
@@ -32,9 +33,9 @@ func main() {
 		fmt.Printf("✅ %d servicios cargados desde disco\n", len(services))
 	}
 
-	http.HandleFunc("/services", handleServices)
-	http.HandleFunc("/lock", handleLock)
-	http.HandleFunc("/unlock", handleUnlock)
+	http.HandleFunc("/services", authMiddleware(handleServices))
+	http.HandleFunc("/lock", authMiddleware(handleLock))
+	http.HandleFunc("/unlock", authMiddleware(handleUnlock))
 
 	fmt.Println("🚦 Lock Server corriendo en :8080")
 	if err := http.ListenAndServe(":8080", nil); err != nil {
@@ -148,3 +149,14 @@ func handleUnlock(w http.ResponseWriter, r *http.Request) {
 
 	http.Error(w, "Service not found", http.StatusNotFound)
 }
+
+func authMiddleware(next http.HandlerFunc) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		token := r.Header.Get("X-API-Key")
+		if token != apiToken {
+			http.Error(w, "Unauthorized", http.StatusUnauthorized)
+			return
+		}
+		next(w, r)
+	}
+}