fix(ethers,ethers5): restore Coinbase Wallet / Base Account session on page reload

[kamal9494]

Description

Fixes Coinbase Smart Wallet / Base Account sessions being dropped on page reload with the ethers and ethers5 adapters.

Root cause

Regression from #5336 (lazy load coinbase, shipped in 1.8.15).

• createEthersConfig() creates CoinbaseWalletProvider and BaseProvider but intentionally does not call initialize(), so the SDK is only loaded when needed.
• syncConnectors() then registers each connector with provider: await provider.getProvider(), which is undefined for those two because nothing has built the SDK yet.
• connect() was updated to call initialize() before use, so the first connection works.
• The reload path was not. On page load the core calls syncConnection(), which reads connector.provider directly:

const selectedProvider = connector?.provider as Provider // undefined for coinbaseWallet / baseAccount

if (!selectedProvider) {
  throw new Error('Provider not found')
}

• The core catches that error and calls onDisconnectNamespace(), so the user is silently logged out. The SDK is never created on that page load.

Fix

Keep the lazy load, but treat a returning user as the one exception. In createEthersConfig(), right where each lazy provider is created:

this.ethersProviders.coinbaseWallet = new CoinbaseWalletProvider()
if (this.hasStoredConnection(CommonConstantsUtil.CONNECTOR_ID.COINBASE)) {
  await this.ethersProviders.coinbaseWallet.initialize()
}

hasStoredConnection() is a small private helper around HelpersUtil.getConnectorStorageInfo(), the same check syncConnections() already uses (hasConnected && !hasDisconnected).

Tests

Four cases added to the existing createEthersConfig suite in each adapter:

• previously connected with coinbase: coinbaseWallet.initialize() called once, base not touched
• previously connected with base account: the mirror
• never connected: neither initialized
• explicitly disconnected: neither initialized

The first two fail on the current main and pass with this change.

Type of change

• Chore (non-breaking change that addresses non-functional tasks, maintenance, or code quality improvements)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Associated Issues

closes #5749

Checklist

• Code in this PR is covered by automated tests (Unit tests, E2E tests)
• My changes generate no new warnings
• I have reviewed my own code
• I have filled out all required sections
• I have tested my changes on the preview link
• Approver of this PR confirms that the changes are tested on the preview link

[changeset-bot]

🦋 Changeset detected

Latest commit: 81cbc44

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 26 packages

Name	Type
@reown/appkit-adapter-ethers5	Patch
@reown/appkit-adapter-ethers	Patch
@reown/appkit	Patch
@reown/appkit-adapter-bitcoin	Patch
@reown/appkit-adapter-solana	Patch
@reown/appkit-adapter-ton	Patch
@reown/appkit-adapter-tron	Patch
@reown/appkit-adapter-wagmi	Patch
@reown/appkit-utils	Patch
@reown/appkit-cdn	Patch
@reown/appkit-cli	Patch
@reown/appkit-codemod	Patch
@reown/appkit-common	Patch
@reown/appkit-controllers	Patch
@reown/appkit-core	Patch
@reown/appkit-experimental	Patch
@reown/appkit-pay	Patch
@reown/appkit-polyfills	Patch
@reown/appkit-scaffold-ui	Patch
@reown/appkit-siwe	Patch
@reown/appkit-siwx	Patch
@reown/appkit-testing	Patch
@reown/appkit-ui	Patch
@reown/appkit-universal-connector	Patch
@reown/appkit-wallet	Patch
@reown/appkit-wallet-button	Patch

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[kamal9494]

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