feat: add expiration handling for database entries and enhance user model with rules

dao/model.go

@@ -24,6 +24,8 @@ type User struct {
 	Silent         bool
 	DefaultStorage string // Default storage name
 	Dirs           []Dir
+	ApplyRule      bool
+	Rules          []Rule
 }
 
 type Dir struct {
@@ -37,3 +39,12 @@ type CallbackData struct {
 	gorm.Model
 	Data string
 }
+
+type Rule struct {
+	gorm.Model
+	UserID      uint
+	Type        string
+	Data        string
+	StorageName string
+	DirPath     string
+}