feat: 添加点赞和收藏功能，优化内容详情视图和评论交互

frontend/portal/src/api/content.js

@@ -14,5 +14,9 @@ export const contentApi = {
     listComments: (id, page) => request(`/contents/${id}/comments?page=${page || 1}`),
     createComment: (id, data) => request(`/contents/${id}/comments`, { method: 'POST', body: data }),
     likeComment: (id) => request(`/comments/${id}/like`, { method: 'POST' }),
+    addLike: (id) => request(`/contents/${id}/like`, { method: 'POST' }),
+    removeLike: (id) => request(`/contents/${id}/like`, { method: 'DELETE' }),
+    addFavorite: (id) => request(`/contents/${id}/favorite`, { method: 'POST' }),
+    removeFavorite: (id) => request(`/contents/${id}/favorite`, { method: 'DELETE' }),
     listTopics: () => request('/topics'),
 };