CUR2-890: xlayer gas fees & token transfers

[tomfutago]

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Description:

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[tomfutago]

blocked by #9066

[cursor]

PR Summary

Add xlayer support for gas fees and token transfers, wiring new models into exposures, aggregate views, and seeds.

• Gas
  • Add gas_xlayer_fees model (+ schema) using evm_l1_gas_fees and include "xlayer" in aggregated gas.fees exposure/list.
  • Update seed seeds/_sector/gas/evm_gas_fees.csv with xlayer entries (Legacy, AccessList, DynamicFee, EIP-7702, 126).
• Tokens
  • Implement xlayer token transfers pipeline: tokens_xlayer_base_transfers, tokens_xlayer_transfers, tokens_xlayer_transfers_from_traces (+ _base, _base_wrapper_deposits), tokens_xlayer_net_transfers_daily, and _asset (+ schemas/tests).
  • Include "xlayer" in exposure macro transfers_from_traces_exposed_blockchains_macro and aggregate views tokens_transfers, tokens_net_transfers_daily, and tokens_net_transfers_daily_asset.

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