Clean project layout and fix release workflow

internal/app/guest_status.go

@@ -1,8 +1,8 @@
 package app
 
 import (
-	"fmt"
 	"encoding/json"
+	"fmt"
 	"os"
 	"path/filepath"
 	"sort"
@@ -40,6 +40,14 @@ func (t *GuestTracker) SetCurrentInstance(label string) {
 	t.current = label
 }
 
+func (t *GuestTracker) ResetCurrentInstance(label string) {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	t.current = label
+	t.items = map[string]*GuestStatus{}
+	_ = t.persistLocked()
+}
+
 func (t *GuestTracker) CurrentInstance() string {
 	t.mu.RLock()
 	defer t.mu.RUnlock()