- Replace pool.observe() TWAP price source with current pool tick (pool.slot0()) sampled once per recenter
- Remove _getTWAPOrFallback() and TWAPFallback event (added by PR #575)
- _scrapePositions now takes int24 currentTick instead of uint256 prevTimestamp; price computed via _priceAtTick before the burn loop
- Volume weighting (ethFee * 100) is unchanged — fees proxy swap volume over the recenter interval
- Direction fix from #566 (shouldRecordVWAP only on sell events) is preserved
- Remove test_twapReflectsAveragePriceNotJustLastSwap (tested reverted TWAP behaviour)
- ORACLE_CARDINALITY / increaseObservationCardinalityNext retained for _isPriceStable()
- All 188 tests pass
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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