[Task] RLNv2 Web management interface

[weboko]

Description

Currently, node operators must pass their Ethereum private key to their nodes to register with the RLNv2 smart contract. This approach introduces unnecessary security risks and complexity. There is no user-friendly interface for registering memberships, managing RLN credentials, or generating keystores that are compatible with nwaku. Additionally, there is no reliable mechanism for caching or managing keystores locally.

User Story

• As a user, I want to register RLNv2 memberships through a web dapp, so that I don’t have to provide my Ethereum private key to my node.
• As a user, I want to use my preferred wallet for interacting with the RLNv2 smart contract, so that I can maintain flexibility and convenience.
• As a user, I want to automatically generate and download an RLNv2 keystore after registration, so that I can use it with my nwaku node securely.
• As a user, I want the web dapp to cache my keystores locally, so that I can easily retrieve them without needing to re-register immediately.
• As a user, I want the web dapp to show me a list of my cached keystores and notify me to download them, so that I can ensure they are securely stored outside the browser.
• As a user, I want the web dapp to show me information about keystores that are cached on the web page, so that I can see what limits and other information is attached to it.
• As a user, I want the web dapp to allow me to upload keysotres from file, so that I can see what limits and other information is attached to them.
• As a user, I should be able to access this webapp on rln.waku.org

Proposed Solution / Feature Design

Preliminary breakdown

• migrate to RLNv2: update contract abstraction #2242
• move js-rln code to js-waku Move this to js-waku monorepo js-rln#69
• create web app;
• integrate web app into rln.waku.org: Jenkins;
• integrate web app into nwaku-compose - questionable;

Optional: Diagram or Draft of Design

TBD

Notes

• https://github.com/waku-org/js-rln
• rln-identity example
• nwaku-compose rln registration
• RLNv2 contract RFC
• RLN keystore RFC