perf: eliminate redundant RPC calls in deposit and withdrawal flows

[aioverlord92]

Summary

• Duplicate receipt fetch eliminated in finalization services: fetchFinalizeDepositParams() was calling getReceiptWithL2ToL1() twice for the same tx hash — once to locate the L1MessageSent log and once to derive the messenger log index. The second fetch is removed by reusing the already-fetched receipt. Applies to both ethers and viem adapters.

• Redundant L1 fee fetches eliminated across all deposit routes: quoteL2BaseCost and quoteL1Gas each independently called fetchFees() (i.e. eth_feeHistory or eth_gasPrice) on the L1 provider. These two calls always fetch the same data within a single deposit quote. Fixed by:

  • Exporting fetchFees and MarketFees from core/resources/deposits/gas
  • Adding an optional precomputedMarket field to QuoteL2BaseCostInput and QuoteL1GasInput so callers can supply pre-fetched fees
  • Adding fetchL1MarketFees() helpers in both ethers and viem adapter service layers
  • Pre-fetching L1 market fees once at the start of each deposit route's build() and passing it to both quoteL2BaseCost and quoteL1Gas

Net savings per deposit quote: −1 L1 fee RPC call (~100–500 ms latency reduction)
Net savings per withdrawal finalization: −1 L2 receipt RPC call (~50–200 ms latency reduction)
Files affected: 15 (4 ethers routes, 4 viem routes, 2 adapter service layers × 2 adapters, 1 core gas module, 2 finalization services)

Test plan

• Run bun run typecheck — passes with no errors (verified locally)
• Run bun run test to ensure unit tests still pass
• Run e2e tests against a testnet node to confirm deposit quote latency is reduced
• Verify withdrawal finalization still works end-to-end

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