feat: initial commit

internal/domain/entity/user.go

@@ -0,0 +1,22 @@
+package entity
+
+import "time"
+
+type User struct {
+	TelegramID int64
+	Username   string
+	FirstName  string
+	LastName   string
+	Language   string
+	CreatedAt  time.Time
+}
+
+type Session struct {
+	UserID          int64
+	ChatID          int64
+	CurrentWorkflow string
+	History         []Message
+	Data            map[string]any
+	UpdatedAt       time.Time
+	TTL             int // hours
+}