feat: capture provider cost details#520

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harrisony wants to merge 7 commits into

mcowger:mainfrom

harrisony:feature/capture-provider-cost-details

Commits on May 22, 2026

fix(extractUsageCostDetails): add upstream_inference_cost fallback for total cost
harrisony
committed
refactor(extractUsageCostDetails): keep upstream cost fields separate from standard fields
harrisony
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feat(applyUsageCostDetails): add three-tier cost dispatch
harrisony
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test(provider-cost): expand coverage for edge cases and end-to-end flows

harrisony
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claude
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fix(provider-cost): handle Vercel zero-upstream costs and DeepSeek cache token shape

harrisony
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claude
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feat(extractUsageCostDetails): capture cost from providers without cost_details block

harrisony
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claude
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feat(provider-cost): expand real-world cassette test coverage
harrisony
committed