feat: add magic signer to aa-signers

[avasisht23]

Pull Request Checklist

• Did you add new tests and confirm existing tests pass? (yarn test)
• Did you update relevant docs? (docs are found in the site folder, see guidleines below)
• Do your commits follow the Conventional Commits standard?
• Does your PR title also follow the Conventional Commits standard?
• If you have a breaking change, is it [correctly reflected in your commit message](https://www.conventionalcommits.org/en/v1.0.0/#examples? (e.g. feat!: breaking change)
• Did you run lint (yarn lint:check) and fix any issues? (yarn lint:fix)
• Is the base branch you're merging into development and not main?

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PR-Codex overview

Detailed summary

This PR introduces the MagicSigner class in the @alchemy/aa-signers package. It includes the following changes:

• Deleted packages/signers/src/__tests__/signer.test.ts
• Added export { MagicSigner } from "./signer.js" and export type * from "./types.js" in packages/signers/src/index.ts
• Added "magic-sdk": "^21.3.0" as an optional dependency in packages/signers/package.json
• Added new files packages/signers/src/magic/types.ts and packages/signers/src/magic/signer.ts
• Added new methods getAddress, signMessage, signTypedData, authenticate, and getAuthDetails in packages/signers/src/magic/signer.ts
• Added new files site/packages/aa-signers/magic/getAddress.md, site/packages/aa-signers/magic/signMessage.md, site/packages/aa-signers/magic/getAuthDetails.md, site/packages/aa-signers/magic/constructor.md, and site/packages/aa-signers/magic/signTypedData.md
• Updated site/.vitepress/config.ts to include documentation links for Magic Signer

The following files were skipped due to too many changes: site/packages/aa-signers/magic/signTypedData.md, yarn.lock, site/packages/aa-signers/magic/authenticate.md, site/packages/aa-signers/magic/introduction.md, packages/signers/src/magic/__tests__/signer.test.ts

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[avasisht23]

Current dependencies on/for this PR:

• development
  • PR feat!: extend SmartAccountSigner with authentication functionality #227
    • PR feat: add aa-signers package #228
      • PR feat: add magic signer to aa-signers #229 👈
        • PR feat: add web3auth signer to aa-signers #247

This stack of pull requests is managed by Graphite.

[mynamebrody]

Quickly ran through from the Magic side. Looking good!

[avasisht23]

Merge activity

• Nov 28, 1:59 PM: @avasisht23 started a stack merge that includes this pull request via Graphite.
• Nov 28, 1:59 PM: @avasisht23 merged this pull request with Graphite.