[Feature Request] 建议增加一个会话中可以艾特@多个面具来完成的功能，像GPT的艾特一样

Description

Contributor guide

Tech stack

typescriptreact

Domain

frontend

Issue type

feature

DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.

3

Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.

1-2 days

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

fresh

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

mostly clear

Prerequisites

TypeScriptReactNextChat codebase

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

30

Research direction

Explore the existing mask and plugin system in the NextChat codebase. Look for how masks are currently managed and how @ mention functionality is implemented in similar applications. Propose a UI mockup for the new feature and identify the files that would need modification, such as chat components, mask store, and plugin integration. Discuss potential challenges with maintaining state and scaling the feature for multiple masks.