Method updateComment

src/services/comment/CommentService.ts:128–154

* 更新评论

(highlight: HighlightInfo, commentId: string, content: string)

     * 更新评论
     */
    async updateComment(highlight: HighlightInfo, commentId: string, content: string): Promise<void> {
        const file = await this.getFileForHighlight(highlight);
        if (!file || !highlight.comments) return;

        const comment = highlight.comments.find(c => c.id === commentId);
        if (comment) {
            const oldContent = comment.content;
            
            comment.content = content;
            comment.updatedAt = Date.now();
            highlight.updatedAt = Date.now();
            await this.highlightManager.addHighlight(file, highlight);

            // 通过 EventManager 触发批注更新事件，用于闪卡同步
            if (highlight.id) {
                this.plugin.eventManager.emitCommentUpdate(file.path, oldContent, content, highlight.id);
            }

            // 只更新单个卡片，而不是刷新整个视图
            if (this.onCardUpdate) {
                this.onCardUpdate(highlight);
            } else if (this.onRefreshView) {
                // 降级方案：如果没有 onCardUpdate，则刷新整个视图
                await this.onRefreshView();
            }
        }
    }
    
    /**
     * 删除评论