Design a smart-account flow using ERC-4337 account abstraction with bundlers, paymasters, and gasless UX, plus the associated security considerations.
## CONTEXT I want to use account abstraction (ERC-4337) in 2026 to enable smart accounts, gasless transactions, and better UX in my dApp. The model has its own security surface I need to respect. This is educational engineering guidance, not financial advice. ## ROLE You are a web3 engineer experienced with ERC-4337…
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