fix: handle chain initialization failures with localStorage cleanup and page reload

[devin-ai-integration]

fix: handle chain initialization failures with localStorage cleanup and page reload

Summary

This PR adds graceful error handling for wallet initialization failures in the react-wallet-v2 application. When a chain wallet fails to initialize (e.g., due to a corrupted or invalid private key stored in localStorage), the application now:

1. Displays an alert informing the user which chain(s) failed to initialize
2. Removes the invalid keys from localStorage for the affected chain(s)
3. Reloads the page to trigger fresh key generation

The implementation handles both the critical EIP155 wallet (which blocks initialization) and the non-critical secondary chain wallets (Cosmos, Solana, Polkadot, Near, MultiversX, Tron, Tezos, Kadena, Bitcoin, Sui, Stacks, TON) which are initialized in the background.

Review & Testing Checklist for Human

• Verify localStorage key mapping accuracy: Confirm that all keys in CHAIN_STORAGE_KEYS (lines 20-34) match exactly what each wallet utility file uses (e.g., EIP155_MNEMONIC_1, SOLANA_SECRET_KEY_1, etc.)
• Test EIP155 failure scenario: Manually corrupt the EIP155_MNEMONIC_1 value in localStorage and verify the alert appears, keys are cleared, and page reloads with fresh wallet
• Test secondary chain failure: Corrupt a secondary chain key (e.g., COSMOS_MNEMONIC_1) and verify the batched error handling works correctly
• Verify no infinite reload loop: After clearing keys, confirm fresh keys are generated successfully on reload

Recommended test plan:

1. Open the wallet app and let it initialize normally
2. Open DevTools > Application > Local Storage
3. Modify EIP155_MNEMONIC_1 to an invalid value (e.g., "invalid")
4. Refresh the page and verify the alert appears and page auto-reloads with a new wallet
5. Repeat for a secondary chain like Cosmos

Notes

• The project has no existing test suite, so this change relies on manual testing
• Uses alert() for user notification as requested - this is blocking but simple
• EIP155 failures trigger immediate reload; secondary chain failures are batched before reload

Link to Devin run: https://app.devin.ai/sessions/a3a891873d5945c5b15258801e05832b
Requested by: gancho@reown.com (@ganchoradkov)

[vercel]

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Project	Deployment	Review	Updated (UTC)
decentralized-relay-app	Error		Dec 19, 2025 0:13am
decentralized-relay-wallet	Ready	Preview, Comment	Dec 19, 2025 0:13am
pos-dapp	Ready	Preview, Comment	Dec 19, 2025 0:13am
react-wallet-v2	Ready	Preview, Comment	Dec 19, 2025 0:13am
wallet-pay-dapp	Error		Dec 19, 2025 0:13am

8 Skipped Deployments

Project	Deployment	Review	Updated (UTC)
appkit-react-wagmi-example	Ignored		Dec 19, 2025 0:13am
appkit-solana	Ignored		Dec 19, 2025 0:13am
chain-abstraction-demo	Ignored		Dec 19, 2025 0:13am
malicious-dapp-verify-simulation	Ignored	Preview	Dec 19, 2025 0:13am
react-dapp-v2	Ignored		Dec 19, 2025 0:13am
react-dapp-v2-cosmos-provider	Ignored		Dec 19, 2025 0:13am
react-dapp-v2-with-ethers	Ignored		Dec 19, 2025 0:13am
smart-sessions-demo	Ignored		Dec 19, 2025 0:13am

[devin-ai-integration]

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