[Feature]: Build a modern AI chat interface with streaming effect and conversation memory

[Sukhmanpreetkaur18]

A modern AI chat interface inspired by ChatGPT with message history, typing animation, and clean UI.

[github-actions]

Thank you for raising this issue!

We'll review it as soon as possible. We truly appreciate your contributions! ✨

Meanwhile make sure you've visited the README.md, CONTRIBUTING.md, and CODE_OF_CONDUCT.md before creating a PR for this. Also, please do NOT create a PR until this issue has been assigned to you. 😊

[Sukhmanpreetkaur18]

@Jayanta2004
assign it to me

[github-actions]

Closed automatically via merged PR #4159.