Split code in respective files.

Resource method name change.

Route list func

route.go

@@ -0,0 +1,51 @@
+package mux
+
+import (
+	"fmt"
+	"log/slog"
+	"sync"
+)
+
+type RouteList struct {
+	mu     sync.RWMutex
+	routes []string
+}
+
+func (s *RouteList) Add(item string) {
+	if s == nil {
+		slog.Warn("failed on Add, RouteList is nil")
+		return
+	}
+
+	s.mu.Lock()
+	defer s.mu.Unlock()
+
+	s.routes = append(s.routes, item)
+}
+
+func (s *RouteList) Get(index int) (string, error) {
+	if s == nil {
+		slog.Warn("failed on Get, RouteList is nil")
+		return "", nil
+	}
+
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+
+	if index < 0 || index >= len(s.routes) {
+		return "0", fmt.Errorf("index out of bounds")
+	}
+	return s.routes[index], nil
+}
+
+func (s *RouteList) All() []string {
+	if s == nil {
+		slog.Warn("failed on All, RouteList is nil")
+		return nil
+	}
+
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+
+	return s.routes
+}