Refactor server handlers and routing to use a handler struct

server/pkg/instance.go

@@ -4,3 +4,16 @@ type Instance struct {
 	Status  string
 	Options *LlamaServerOptions
 }
+
+type InstanceManager interface {
+}
+
+type instanceManager struct {
+	instances map[string]*Instance
+}
+
+func NewInstanceManager() InstanceManager {
+	return &instanceManager{
+		instances: make(map[string]*Instance),
+	}
+}