Add market data backend design document#2
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team2human merged 1 commit intomainfrom Mar 28, 2026
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Consolidates the unified interface, GBM simulator, Massive API client, price cache, SSE streaming, and FastAPI lifecycle integration into a single authoritative design doc with implementation-ready code snippets. https://claude.ai/code/session_015psJgQTLmezRX6AubSQRRh
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Summary
planning/MARKET_DATA_DESIGN.md— a comprehensive design document for the market data backend subsystembackend/app/market/Contents
15 sections covering: architecture overview, file structure, data model, price cache, abstract interface, seed prices, GBM simulator (with Cholesky correlation), Massive API client, factory, SSE streaming, FastAPI lifecycle, watchlist coordination, error handling, testing strategy, and configuration summary.
Test plan
backend/app/market/source fileshttps://claude.ai/code/session_015psJgQTLmezRX6AubSQRRh