CUR2-891: xlayer uniswap

[tomfutago]

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Description:

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quick links for more information:

• README.md
• spellbook docs
• CONTRIBUTING.md

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PR Summary

Adds xlayer Uniswap v2/v3 DEX base trades with sources, tests, seeds, and inclusion in the global dex.base_trades union.

• DEX trades (xlayer):
  • Model: New incremental dex_xlayer.base_trades unioning uniswap_v2_xlayer_base_trades and uniswap_v3_xlayer_base_trades; casts amounts, filters non-negative, adds tx columns, and de-duplicates by tx_hash/evt_index.
  • Platforms: Add uniswap_v2_xlayer_base_trades and uniswap_v3_xlayer_base_trades using uniswap_compatible_v2_trades/uniswap_compatible_v3_trades macros.
  • Schema/Tests: Add _schema.yml with column checks, uniqueness tests, and seed validations (v2/v3 filters).
  • Sources: Define uniswap_v2_xlayer and uniswap_v3_xlayer event tables in sources/_sector/dex/trades/xlayer/_sources.yml.
  • Seeds: Add uniswap_xlayer_base_trades_seed (schema + CSV placeholder).
• Global union:
  • Include ref('dex_xlayer_base_trades') in dbt_subprojects/dex/models/trades/dex_base_trades.sql.

^{Written by Cursor Bugbot for commit e3cdafd. Configure here.}

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[tomfutago]

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