⚡ implement user authentication and database initialization, add models for user, comment, label, and OIDC configuration

internal/model/post.go

@@ -0,0 +1,12 @@
+package model
+
+import "gorm.io/gorm"
+
+type Post struct {
+	gorm.Model
+	UserID  uint    `gorm:"index"`                                                                // 发布者的用户ID
+	User    User    `gorm:"foreignKey:UserID;references:ID"`                                      // 关联的用户
+	Title   string  `gorm:"type:text;not null"`                                                   // 帖子标题
+	Content string  `gorm:"type:text;not null"`                                                   // 帖子内容
+	Labels  []Label `gorm:"many2many:post_labels;constraint:OnUpdate:CASCADE,OnDelete:SET NULL;"` // 关联的标签
+}