feat: 添加点赞和收藏功能，优化内容详情视图和评论交互

backend/app/http/v1/content.go

@@ -47,7 +47,7 @@ func (c *Content) List(
 // @Success 200 {object} dto.ContentDetail
 // @Bind id path
 func (c *Content) Get(ctx fiber.Ctx, id string) (*dto.ContentDetail, error) {
-	uid := cast.ToInt64(ctx.Locals(consts.CtxKeyUser))
+	uid := getUserID(ctx)
 	return services.Content.Get(ctx, uid, id)
 }
 
@@ -65,7 +65,7 @@ func (c *Content) Get(ctx fiber.Ctx, id string) (*dto.ContentDetail, error) {
 // @Bind id path
 // @Bind page query
 func (c *Content) ListComments(ctx fiber.Ctx, id string, page int) (*requests.Pager, error) {
-	uid := cast.ToInt64(ctx.Locals(consts.CtxKeyUser))
+	uid := getUserID(ctx)
 	return services.Content.ListComments(ctx, uid, id, page)
 }
 
@@ -83,7 +83,7 @@ func (c *Content) ListComments(ctx fiber.Ctx, id string, page int) (*requests.Pa
 // @Bind id path
 // @Bind form body
 func (c *Content) CreateComment(ctx fiber.Ctx, id string, form *dto.CommentCreateForm) error {
-	uid := cast.ToInt64(ctx.Locals(consts.CtxKeyUser))
+	uid := getUserID(ctx)
 	return services.Content.CreateComment(ctx, uid, id, form)
 }
 
@@ -99,10 +99,62 @@ func (c *Content) CreateComment(ctx fiber.Ctx, id string, form *dto.CommentCreat
 // @Success 200 {string} string "Liked"
 // @Bind id path
 func (c *Content) LikeComment(ctx fiber.Ctx, id string) error {
-	uid := cast.ToInt64(ctx.Locals(consts.CtxKeyUser))
+	uid := getUserID(ctx)
 	return services.Content.LikeComment(ctx, uid, id)
 }
 
+// Add like
+//
+// @Router /v1/contents/:id/like [post]
+// @Summary Add like
+// @Tags Content
+// @Param id path string true "Content ID"
+// @Success 200 {string} string "Liked"
+// @Bind id path
+func (c *Content) AddLike(ctx fiber.Ctx, id string) error {
+	uid := getUserID(ctx)
+	return services.Content.AddLike(ctx, uid, id)
+}
+
+// Remove like
+//
+// @Router /v1/contents/:id/like [delete]
+// @Summary Remove like
+// @Tags Content
+// @Param id path string true "Content ID"
+// @Success 200 {string} string "Unliked"
+// @Bind id path
+func (c *Content) RemoveLike(ctx fiber.Ctx, id string) error {
+	uid := getUserID(ctx)
+	return services.Content.RemoveLike(ctx, uid, id)
+}
+
+// Add favorite
+//
+// @Router /v1/contents/:id/favorite [post]
+// @Summary Add favorite
+// @Tags Content
+// @Param id path string true "Content ID"
+// @Success 200 {string} string "Favorited"
+// @Bind id path
+func (c *Content) AddFavorite(ctx fiber.Ctx, id string) error {
+	uid := getUserID(ctx)
+	return services.Content.AddFavorite(ctx, uid, id)
+}
+
+// Remove favorite
+//
+// @Router /v1/contents/:id/favorite [delete]
+// @Summary Remove favorite
+// @Tags Content
+// @Param id path string true "Content ID"
+// @Success 200 {string} string "Unfavorited"
+// @Bind id path
+func (c *Content) RemoveFavorite(ctx fiber.Ctx, id string) error {
+	uid := getUserID(ctx)
+	return services.Content.RemoveFavorite(ctx, uid, id)
+}
+
 // List curated topics
 //
 // @Router /v1/topics [get]
@@ -115,3 +167,12 @@ func (c *Content) LikeComment(ctx fiber.Ctx, id string) error {
 func (c *Content) ListTopics(ctx fiber.Ctx) ([]dto.Topic, error) {
 	return services.Content.ListTopics(ctx)
 }
+
+func getUserID(ctx fiber.Ctx) int64 {
+	if u := ctx.Locals(consts.CtxKeyUser); u != nil {
+		if user, ok := u.(*models.User); ok {
+			return user.ID
+		}
+	}
+	return 0
+}

backend/app/http/v1/dto/content.go

@@ -12,19 +12,20 @@ type ContentListFilter struct {
 }
 
 type ContentItem struct {
-	ID           string  `json:"id"`
-	Title        string  `json:"title"`
-	Cover        string  `json:"cover"`
-	Genre        string  `json:"genre"`
-	Type         string  `json:"type"` // video, audio, article
-	Price        float64 `json:"price"`
-	AuthorID     string  `json:"author_id"`
-	AuthorName   string  `json:"author_name"`
-	AuthorAvatar string  `json:"author_avatar"`
-	Views        int     `json:"views"`
-	Likes        int     `json:"likes"`
-	CreatedAt    string  `json:"created_at"`
-	IsPurchased  bool    `json:"is_purchased"`
+	ID                string  `json:"id"`
+	Title             string  `json:"title"`
+	Cover             string  `json:"cover"`
+	Genre             string  `json:"genre"`
+	Type              string  `json:"type"` // video, audio, article
+	Price             float64 `json:"price"`
+	AuthorID          string  `json:"author_id"`
+	AuthorName        string  `json:"author_name"`
+	AuthorAvatar      string  `json:"author_avatar"`
+	AuthorIsFollowing bool    `json:"author_is_following"`
+	Views             int     `json:"views"`
+	Likes             int     `json:"likes"`
+	CreatedAt         string  `json:"created_at"`
+	IsPurchased       bool    `json:"is_purchased"`
 }
 
 type ContentDetail struct {

backend/app/http/v1/routes.gen.go

@@ -99,6 +99,16 @@ func (r *Routes) Register(router fiber.Router) {
 		Body[dto.UploadPartForm]("form"),
 	))
 	// Register routes for controller: Content
+	r.log.Debugf("Registering route: Delete /v1/contents/:id/favorite -> content.RemoveFavorite")
+	router.Delete("/v1/contents/:id/favorite"[len(r.Path()):], Func1(
+		r.content.RemoveFavorite,
+		PathParam[string]("id"),
+	))
+	r.log.Debugf("Registering route: Delete /v1/contents/:id/like -> content.RemoveLike")
+	router.Delete("/v1/contents/:id/like"[len(r.Path()):], Func1(
+		r.content.RemoveLike,
+		PathParam[string]("id"),
+	))
 	r.log.Debugf("Registering route: Get /v1/contents -> content.List")
 	router.Get("/v1/contents"[len(r.Path()):], DataFunc1(
 		r.content.List,
@@ -130,6 +140,16 @@ func (r *Routes) Register(router fiber.Router) {
 		PathParam[string]("id"),
 		Body[dto.CommentCreateForm]("form"),
 	))
+	r.log.Debugf("Registering route: Post /v1/contents/:id/favorite -> content.AddFavorite")
+	router.Post("/v1/contents/:id/favorite"[len(r.Path()):], Func1(
+		r.content.AddFavorite,
+		PathParam[string]("id"),
+	))
+	r.log.Debugf("Registering route: Post /v1/contents/:id/like -> content.AddLike")
+	router.Post("/v1/contents/:id/like"[len(r.Path()):], Func1(
+		r.content.AddLike,
+		PathParam[string]("id"),
+	))
 	// Register routes for controller: Creator
 	r.log.Debugf("Registering route: Delete /v1/creator/contents/:id -> creator.DeleteContent")
 	router.Delete("/v1/creator/contents/:id"[len(r.Path()):], Func2(