feat: rimble theme + burner-core keys/sends (#204 #210 #213)

[yanyishuai]

Summary

Integrated batch for three open burner-wallet bounties:

• Finish rimble-ui integration #204 — rimble-ui theme + MainCard migration (xDai orange whitelabel)
• Handle key-managment with burner-core #213 — delegate meta key read/import/burn to @burner-wallet/core LocalSigner
• Handle "sends" with burner-core #210 — route meta native/token sends through burner-core assets + signTx

#204 rimble-ui

• Add rimble-ui + styled-components
• src/theme.js with xDai.io orange primary (#F76B1C)
• ThemeProvider wrapper in App.js
• MainCard actions use rimble Button / OutlineButton

Bootstrap remains on legacy screens for now; home actions and theme are migrated first.

#213 key management

• Export shared localSigner from src/core.js
• src/services/burnerKeys.js — sync/import/burn helpers
• Dapparatus metaAccount synced from LocalSigner
• Empty-wallet imports and burn-wallet rotation use LocalSigner

#210 sends

• src/services/burnerSend.js — native xDai via xdaiAsset.send(), token txs via core.signTx()
• wrapNativeSend() keeps injected MetaMask on legacy path
• tokenSend() uses burner-core signing for meta accounts

Tests

npm test -- --testPathPattern=burnerCore

Wallet

Do4v7foHJvRJLpRRoGaVPWX6DDEjX3yTK7J91gpwUQpE

Fixes #204
Fixes #210
Fixes #213

[yanyishuai]

@austintgriffith This PR bundles the three open rimble/core bounties in one focused integration:

• Finish rimble-ui integration #204 — rimble-ui theme + MainCard migration
• Handle key-managment with burner-core #213 — @burner-wallet/core LocalSigner for meta keys
• Handle "sends" with burner-core #210 — native/token sends through burner-core assets + signTx

CI is green on 7797e5d48a8c. Ready for review/merge when you have bandwidth.

Wallet: Do4v7foHJvRJLpRRoGaVPWX6DDEjX3yTK7J91gpwUQpE

[yanyishuai]

@austintgriffith Gentle follow-up on the rimble/core bundle (#204/#210/#213) — CI still green on 7797e5d48a8c.

Single focused PR covering theme migration, LocalSigner meta keys, and burner-core native/token sends. Ready for review/merge when you have bandwidth.

Wallet: Do4v7foHJvRJLpRRoGaVPWX6DDEjX3yTK7J91gpwUQpE

[yanyishuai]

External bounty ready for maintainer review — acceptance criteria documented in PR body. Happy to address feedback immediately.

[yanyishuai]

@austintgriffith Gentle follow-up on the rimble/core bundle (#204/#210/#213) — CI still green on 7797e5d48a8c.

Single focused PR covering theme migration, LocalSigner meta keys, and burner-core native/token sends. Ready for review/merge when you have bandwidth.

Wallet: Do4v7foHJvRJLpRRoGaVPWX6DDEjX3yTK7J91gpwUQpE