8 tasks covering: MarketSnapshot schema changes, indicator computations,
fundamental data providers, DB caching, 6 new strategies, signal generator
wiring, and deployment steps.
6 new strategies (Value, MACD Crossover, Bollinger Breakout, VWAP,
Liquidity, MA Stack) plus fundamental data pipeline with 3 providers
(Alpha Vantage, FMP, Yahoo Finance) and DB-backed caching.
Add OpenTelemetry instrumentation plan with /metrics endpoints for
external Prometheus scraping, and passkey/WebAuthn authentication flow
with JWT sessions.
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