Support wagmi 3 — remove wagmi/experimental imports

### Feature Request

OnchainKit 1.1.2 imports from `wagmi/experimental` (in `SwapProvider.js` and `useAwaitCalls.js`), which was removed in wagmi 3. This blocks projects from upgrading to wagmi 3.

```
"./experimental" is not exported under the conditions ["module", "browser", "production", "import"]
from package wagmi (see exports field in wagmi/package.json)
```

### Files importing `wagmi/experimental`

- `dist/connected/components/Connected.js`
- `dist/swap/components/SwapProvider.js` — `useSendCalls`
- `dist/swap/hooks/useAwaitCalls.js` — `useCallsStatus`

### Context

We use OnchainKit for `OnchainKitProvider` and wallet components in a Farcaster mini-app. Wagmi 3 + Farcaster miniapp-wagmi-connector 2.0 are available but we can't upgrade because OnchainKit's `wagmi/experimental` imports fail at build time.