Fix CoinMetrics LWBA handler for asset-quotes websocket responses - #5193
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Fix CoinMetrics LWBA handler for asset-quotes websocket responses#5193cawthorne wants to merge 2 commits into
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The LWBA transport switched to asset-quotes in #3187 but still parsed pair-quotes messages, causing websocket updates to fail and feed uptime to flap for assets like FRAX.
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CoinMetrics can occasionally emit a skewed snapshot on thinner/volatile markets due to timing skew between the bid, mid, and ask updates. Add an ingest-time warn in the LWBA transport so the violation is attributable to the provider and asset. The snapshot is still passed through unchanged; the framework's LwbaEndpoint output validation remains the source of truth for rejecting it.
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Summary
Changes
packages/sources/coinmetrics/src/transport/lwba.ts— parse asset-quotes response shape; add skew warnpackages/sources/coinmetrics/test/unit/lwba.test.ts— unit tests for the fix and skew warnpackages/sources/coinmetrics/test/integration/fixtures.ts— updated fixtures.changeset/— two changesets