⚡️ feat: refactor sorting parameters in post listing API and components

- Renamed `orderedBy` to `orderBy` and `reverse` to `desc` in ListPostsParams interface and related functions.
- Updated all usages of the sorting parameters in the post listing logic to reflect the new naming convention.

feat: add user-related API functions

- Implemented `getLoginUser` and `getUserById` functions in the user API to fetch user details.
- Enhanced user model to include `language` property.

feat: integrate next-intl for internationalization

- Added `next-intl` plugin to Next.js configuration for improved localization support.
- Removed previous i18n implementation and replaced it with a new structure using JSON files for translations.
- Created locale files for English, Japanese, and Chinese with basic translations.
- Implemented a request configuration to handle user locales and messages dynamically.

fix: clean up unused imports and code

- Removed unused i18n utility functions and language settings from device context.
- Cleaned up commented-out code in blog card component and sidebar.

chore: update dependencies

- Added `deepmerge` for merging locale messages.
- Updated package.json and pnpm-lock.yaml to reflect new dependencies.

internal/dto/comment.go

@@ -1 +1,25 @@
 package dto
+
+type CommentDto struct {
+	ID         uint    `json:"id"`
+	TargetID   uint    `json:"target_id"`
+	TargetType string  `json:"target_type"` // 目标类型，如 "post", "page"
+	Content    string  `json:"content"`
+	ReplyID    uint    `json:"reply_id"` // 回复的评论ID
+	Depth      int     `json:"depth"`    // 评论的层级深度
+	CreatedAt  string  `json:"created_at"`
+	UpdatedAt  string  `json:"updated_at"`
+	User       UserDto `json:"user"` // 评论的
+}
+
+type CreateCommentReq struct {
+	TargetID   uint   `json:"target_id" binding:"required"`   // 目标ID
+	TargetType string `json:"target_type" binding:"required"` // 目标类型，如 "post", "page"
+	Content    string `json:"content" binding:"required"`     // 评论内容
+	ReplyID    uint   `json:"reply_id"`                       // 回复的评论ID
+}
+
+type UpdateCommentReq struct {
+	CommentID uint   `json:"comment_id" binding:"required"` // 评论ID
+	Content   string `json:"content" binding:"required"`    // 评论内容
+}