perf(encoding): encode execute and enqueue calldata with a cached ox AbiFunction

[kyscott18]

Summary

viem's encodeFunctionData looks up the ABI item and hashes the selector on every call. The runtime encodes execute calldata for each accepted mutation. This PR uses AbiFunction.encodeData from ox with the execute and enqueue functions resolved once at module load. This follows the "prefer ox" rule in AGENTS.md.

Results

• Micro-benchmark, one-mutation execute calldata: 14.6 µs (viem) → 3.5 µs (ox, cached).
• In the runtime, the encode step fell from 44–62 µs to 20–29 µs per mutation.
• Counter benchmark, open loop at 8,000/s, with the other PRs in this series: 4,200–4,320 → 4,770–4,930 mutations/s.

Test plan

• bun run lint, bun run typecheck, bun run test (the encoding and runtime tests compare calldata)

🤖 Generated with Claude Code

Confidence Score: 5/5

The PR appears safe to merge; no actionable issues were found.

Summary

Replaces viem calls with cached ox functions when encoding execute and enqueue calldata.

• The runtime encodes execute and enqueue calldata with cached ox functions.

_{Reviews (1) · Last reviewed commit: "perf(encoding): encode execute and enque..." · Reviewed by Greptile}