Feat/connect bitcoin

[NikosFotiadis]

Explanation

• Adds the @metamask/connect-bitcoin package which wraps the @metamask/bitcoin-wallet-standard with MetaMask Connect.
• Playground dapp support for bitcoin-wallet-standard

Testing Steps

1. Install dependencies and build (yarn install && yarn build)
2. Launch browser playground (yarn workspace @metamask/browser-playground start)
3. Click Connect (Bitcoin) button (ensure no extension is installed if using desktop browser)
4. Confirm connection -> Bitcoin Card should appear in dapp
5. Try interactions available interactions like signMessage, which should succeed.

Important

Metamask does not support Bitcoin testnets so in oorder to test transactions you will need BTC on mainnet

References

Checklist

• I've updated the test suite for new or updated code as appropriate
  • Tests for @metamask/connect-bitcoin
  • Test for Bitcoin Card in the playground dapp
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've communicated my changes to consumers by updating changelogs for packages I've changed, highlighting breaking changes as necessary
• I've prepared draft pull requests for clients and consumer packages to resolve any breaking changes

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	@​metamask/​bitcoin-wallet-standard@​0.2.0
	bitcoinjs-lib@​7.0.1
	sats-connect@​4.2.1

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