feat: add sendCalls execution logic and request normalization helpers

[janek26]

Add sendCalls execution logic and request normalization helpers

Pure library code for executing EIP-5792 batches and normalising provider requests into a shape the existing SendTransaction UI can work with. No UI changes, no wiring — just functions.

What's included

• executeSendCallsBatch – Takes SendCallsParams + sender address, executes via the delegation SDK's executeBatchedTransaction, records the resulting tx with addNewTransaction, and returns { success, txHashes } or { success: false, error }.
• normalizeRequest.ts – Helpers that let the approval screen handle both eth_sendTransaction and wallet_sendCalls uniformly:
  • isSendCallsParams / isWalletSendCallsRequest – type guards
  • getTransactionRequestFromRequest – extracts the first call as a TransactionRequest for single-tx display
  • getTransactionRequestsFromRequest – returns all calls as TransactionRequest[] for simulation and gas estimation
  • getChainIdForRequest – prefers the batch's explicit chainId over the session default

Design choices & review focus

• Delegation-only path – executeSendCallsBatch requires delegation support. If the wallet or chain doesn't support it, it returns a clean error rather than falling back to sequential sends. This is intentional: EIP-5792 atomic means all-or-nothing.
• Gas from store – Uses useGasStore.getState().selectedGas to get EIP-1559 params. This works because the approval popup has already populated the gas store by the time execution runs.

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PR-Codex overview

This PR enhances the sendCalls functionality by introducing a new batch execution method, improving type definitions, and adding validation for wallet_sendCalls requests. It also includes error handling for delegation support and gas parameters.

Detailed summary

• Added SendCallsParams and RequestCapability exports in src/core/sendCalls/types.ts.
• Implemented executeSendCallsBatch in src/core/sendCalls/executeSendCallsBatch.ts for batch execution.
• Enhanced error handling and validation for delegation and gas parameters.
• Updated request normalization functions in src/entries/popup/pages/messages/SendTransaction/normalizeRequest.ts to support wallet_sendCalls.

✨ Ask PR-Codex anything about this PR by commenting with /codex {your question}

[janek26]

• feat: add sendCalls execution logic and request normalization helpers #2235 : 2 dependent PRs (#2236 , #2254 ) 👈 (View in Graphite)
• feat: add batch store with validation and EIP-5792 types #2234
• feat: implement wallet_getCapabilities #2215 : 1 other dependent PR (#2216 )
• feat: add EIP-5792 inpage method stubs and provider upgrade #2214
• refactor: move pending tx cleanup from useEffect to store subscription #2250
• refactor: rewrite popup PendingTransactionWatcher to reactive useEffect pattern #2243
• feat: add chain-specific tiered polling schedule with timeout handling #2242
• feat: move pending transaction receipt checking to background service worker #2241
• master

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[DanielSinclair]

Small tweak recommendations

[DanielSinclair]

Merge activity

• Mar 20, 10:49 PM UTC: A user started a stack merge that includes this pull request via Graphite.
• Mar 20, 10:50 PM UTC: @DanielSinclair merged this pull request with Graphite.