[sdk, simplex]: sign and submit bids against EntryPoint v0.9 #1367

Background

The SDK and simplex build, sign and submit bids as user operations for EntryPoint v0.8 only. Once SolverAccount (#1366) and SimplexPaymaster (#1365) move to v0.9, bids have to be signed for and sent to the v0.9 EntryPoint (0x433709009B8330FDa32311DF1C2AFA402eD8D009).

What is pinned to v0.8

• EntryPointV08 in sdk/packages/sdk/src/configs/chain.ts (16 chains) and getEntryPointV08Address in ChainConfigService.ts, used by Bid.ts and GasEstimator.ts
• simplex's FillerConfigService.getEntryPointAddress, which returns the v0.8 address
• The SolverAccount address per chain, which the delegation check compares against

Proposed change

• Add the v0.9 EntryPoint to the chain config and make the lookup version-aware instead of V08-named.
• Sign against v0.9. CryptoUtils already takes the EntryPoint address as a parameter, and v0.9 keeps the ERC4337 / 1 domain and the same type hash, so only the address changes.
• Read nonces from the v0.9 EntryPoint. Each EntryPoint keeps its own.
• Point the config at the new SolverAccount addresses, and confirm DelegationService re-delegates a wallet that is still delegated to the old one.
• At startup, call eth_supportedEntryPoints on each configured bundler and fail with a clear message if v0.9 is missing.
• Post open orderbook bids again. Posted user operations are signed for one EntryPoint, so everything posted before the cutover has to be withdrawn and signed again.

To confirm

• The bundlers solvers use accept v0.9 on every supported chain, including the default the simplex init wizard picks. The custom bundler is tracked in HyperFx Custom Bundler Tracking issue #1363.
• External signers that check the typed-data domain or the delegate address (Turnkey and MPCVault policies) are updated for the v0.9 EntryPoint and the new SolverAccount.
• BID_PVG_ESTIMATION_ACCOUNT_CODE still gives a sound preVerificationGas estimate on a v0.9 bundler.

Affected files

• sdk/packages/sdk/src/configs/chain.ts, ChainConfigService.ts
• sdk/packages/sdk/src/protocols/intents/Bid.ts, BidManager.ts, GasEstimator.ts, CryptoUtils.ts
• sdk/packages/simplex/src/services/FillerConfigService.ts, DelegationService.ts, ContractInteractionService.ts
• sdk/packages/simplex/src/orderbook/limit-orders.ts
• Tests and the e2e environment that hard-code the v0.8 address
• simplex docs and the simplex init wizard

Acceptance

• A bid built by the SDK is accepted by a v0.9 bundler and filled on a testnet
• simplex re-delegates, posts its open bids again and fills through v0.9 without manual steps
• simplex refuses to start against a bundler that does not list v0.9