feat: Implement asterai plugin

[rellfy]

Relates to

N/A

Risks

Low risk. The user is in full control of the configuration, and it is opt-in.

Background

What does this PR do?

This PR implements a plugin for interacting with asterai plugins and agents.

What kind of change is this?

This plugin provides functionality to allow Eliza agents to interact with
asterai plugins and agent apps.

This expands the Eliza character's utility by giving it access to all
the functionality of asterai's ecosystem of marketplace and private plugins
and apps.

Documentation changes needed?

The documentation is self-contained in the new plugin package introduced by this PR.

Testing

I tested this PR using Eliza's web UI by configuring the plugin and asking the Eliza character to perform an action available through the asterai platform. It successfully queried the app and showed the relevant response.

Detailed testing steps

1. Add the new @elizaos/plugin-asterai plugin to an Eliza character
2. Setup the ENV vars according to your asterai application. Instructions are in the new package's README.
3. Ask the Eliza character a question that the asterai app can answer. For example, add the StockInfo plugin to the asterai app and test that Eliza can answer questions about stock prices by agent proxy.

Deploy Notes

N/A

Database changes

N/A

Deployment instructions

The package should be published on a repository like NPM so that users can consume the plugin easily.

Discord username

rellfy

[github-actions]

Hi @rellfy! Welcome to the ai16z community. Thanks for submitting your first pull request; your efforts are helping us accelerate towards AGI. We'll review it shortly. You are now a ai16z contributor!

[ag-wnl]

Thanks for the contribution! LGTM.
look forward to having more actions/provider information supported in the plugin :)

[ag-wnl]

@rellfy Please resolve conflicts