Three new crypto/market intelligence panels with self-fetching data:
- Market Radar (macro-signals): 7 signals from Yahoo Finance, mempool.space,
alternative.me — liquidity, flow structure, macro regime, BTC trend with
30d VWAP, hash rate, mining cost, fear & greed. SVG sparklines and donut gauge.
- BTC ETF Tracker (etf-flows): 10 spot Bitcoin ETFs via Yahoo Finance 5-day
chart with estimated net flows, volume, and price change per ETF.
- Stablecoins (stablecoin-markets): CoinGecko proxy for peg health monitoring
(ON PEG / SLIGHT DEPEG / DEPEGGED) and supply/volume breakdown.
All endpoints include CORS origin guard, input validation, in-memory caching
with stale fallback. Panels registered in both full and tech variants.
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