Refactor app structure: move models to domain, centralize config and database init - TODO: add jwt

internal/database/database.go

@@ -7,6 +7,8 @@ import (
 	"gorm.io/gorm"
 )
 
+var Gorm *gorm.DB
+
 func Connect() (*gorm.DB, error) {
 	db, err := gorm.Open(sqlite.Open("test.db"), &gorm.Config{})
 	if err != nil {
@@ -17,4 +19,13 @@ func Connect() (*gorm.DB, error) {
 		return nil, err
 	}
 	return db, nil
+}
+
+// IDK if this is how it works or not, leave it as is for now
+func Init () {
+	var err error
+	Gorm, err = Connect()
+	if err != nil {
+		panic(err)
+	}
 }