feat: Authors feature backend (and upgraded deprecated mods)

internal/infrastructure/persistence/models/authorModel.go

@@ -0,0 +1,23 @@
+package models
+
+import "time"
+
+type Author struct {
+	ID          uint32    `gorm:"primaryKey;autoIncrement"`
+	Name        string    `gorm:"size:100;not null"`
+	Slug        string    `gorm:"size:100;not null;uniqueIndex"`
+	Bio         string    `gorm:"size:280;not null"`
+	AvatarID    *uint32   `gorm:"index"`
+	Website     *string   `gorm:"size:2048"`
+	SocialLinks string    `gorm:"type:text;not null"`
+	UserID      *uint32   `gorm:"uniqueIndex"`
+	CreatedAt   time.Time `gorm:"autoCreateTime"`
+	UpdatedAt   time.Time `gorm:"autoUpdateTime"`
+}
+
+type ArticleAuthor struct {
+	ID        uint32 `gorm:"primaryKey;autoIncrement"`
+	ArticleID uint32 `gorm:"not null;uniqueIndex:idx_article_authors_pair"`
+	AuthorID  uint32 `gorm:"not null;uniqueIndex:idx_article_authors_pair;index"`
+	Position  int    `gorm:"not null"`
+}