Clarification of historical trade and liquidity semantics for Robinhood#870

We need to establish the meaning of fields returned by
/defi/txs/token/seek_by_time with x-chain=robinhood.

1. Are tokenPrice and base.price/quote.price indexed prices or prices
   derived from the executed swap? The field schema and explanatory prose
   appear to describe per-leg price differently. Which description governs?

2. Do base.uiAmount and quote.uiAmount describe the actual traded amounts
   for the same swap leg? Are they before or after trading/transfer fees?
   Please define any applicable feeInfo fields.

3. What is the precise numerator/denominator orientation of pricePair?
   For multi-hop or routed transactions, do the reported amounts, prices
   and pool address describe one hop or the complete route?

4. Which field or documented method supplies a historical USD anchor for
   the identified quote/anchor token? How are null values, timestamp
   alignment and later revisions/backfills handled?

5. What supported sources establish historical pool creation, token-pair
   identity and liquidity on Robinhood? Your current Liquidity History
   documentation specifies Solana; is equivalent historical coverage
   available for Robinhood or other supported chains?

Please provide endpoint/field documentation and effective version dates
where possible. We are not requesting an evaluation of a trading strategy.