feat: Lens client

[imthatcarlos]

Background

What does this PR do?

Adding a new client for Lens a decentralized social protocol. Basic client functionality for fetching a timeline, fetching mentions, and creating a post or comment.

What kind of change is this?

Features (non-breaking change which adds functionality)

Why are we doing this? Any context or related work?

This client allows agents to post to Lens, a social graph that is permissionless and provides a more onchain environment for agents, with a variety of monetization options including collectable posts and open actions.

This client is similar to the latest Farcaster client and serves as a base for other devs to include more Lens functionality.

Documentation changes needed?

My changes do not require a change to the project documentation.

Testing

Where should a reviewer start?

A few .env variables are needed

• get an evm wallet private key
• get a lens profile owned by the same wallet: https://onboarding.lens.xyz/mint
• get ipfs api credentials: https://storj.dev/dcs/api/storj-ipfs-pinning

# client-lens
EVM_PRIVATE_KEY=
LENS_PROFILE_ID=
STORJ_API_USERNAME=
STORJ_API_PASSWORD=

In the defaultCharacter.ts - add the new client to the clients array

import { Character, ModelProviderName, Clients } from "./types.ts";

export const defaultCharacter: Character = {
    name: "Eliza",
    username: "eliza",
    plugins: [],
    clients: [Clients.LENS],
    modelProvider: ModelProviderName.GROK,

Detailed testing steps

1. set new .env variables
2. add client to character file
3. start the server
4. agent fetches timeline to generate a new post, and fetches mentions to generate comments
5. if agent creates a post, check it at https://hey.xyz/u/{agentHandle}

Discord username

imthatcarlos