⚡️ feat: update global styles and color variables for improved theming

refactor: change import paths for DeviceContext and GravatarAvatar components

fix: adjust login form API call and update UI text for clarity

feat: add post API for listing posts with pagination and filtering options

feat: implement BlogCard component for displaying blog posts with enhanced UI

feat: create Badge component for consistent styling of labels and indicators

refactor: reintroduce DeviceContext with improved functionality for theme and language management

feat: define Label and Post models for better type safety and structure

internal/dto/post.go

@@ -1,22 +1,30 @@
 package dto
 
+import "time"
+
 type PostDto struct {
 	ID           uint       `json:"id"`      // 帖子ID
 	UserID       uint       `json:"user_id"` // 发布者的用户ID
 	Title        string     `json:"title"`   // 帖子标题
 	Content      string     `json:"content"`
+	Cover        string     `json:"cover"`         // 帖子封面图
+	Type         string     `json:"type"`          // 帖子类型 markdown / html / text
 	Labels       []LabelDto `json:"labels"`        // 关联的标签
 	IsPrivate    bool       `json:"is_private"`    // 是否为私密帖子
 	LikeCount    uint64     `json:"like_count"`    // 点赞数
 	CommentCount uint64     `json:"comment_count"` // 评论数
 	ViewCount    uint64     `json:"view_count"`    // 浏览数
 	Heat         uint64     `json:"heat"`          // 热度
+	CreatedAt    time.Time  `json:"created_at"`
+	UpdatedAt    time.Time  `json:"updated_at"` // 更新时间
 }
 
 type CreateOrUpdatePostReq struct {
 	Title     string `json:"title"`
 	Content   string `json:"content"`
+	Cover     string `json:"cover"`
 	IsPrivate bool   `json:"is_private"`
+	Type      string `json:"type"`
 	Labels    []uint `json:"labels"` // 标签ID列表
 }