feat: dynamic hype cycle + market signal engine + eBay/CapEx panels
6-source composite Market Signal Score (0-100) per transceiver technology.
New GET /api/hype-cycle/market-signals blends: Norton-Bass hype_score,
hyperscaler CapEx YoY (MSFT +68.8%, GOOG +107%, META +46.8%), price
observation activity ratio 30d vs prior 30d, AI cluster transceiver demand,
eBay secondary market sell-through velocity, internal fast-mover trend.
All 6 queries run in parallel via Promise.all().
Recommendation engine maps hype phase × capex boom × speed class →
Buy/Hold/Watch labels with tooltips. Dashboard Hype Cycle table now shows
Market Signal ● LIVE column + Recommendation column. Hyperscaler CapEx
panel + eBay panel added to hype tab. Procurement: new eBay Market section.
Sourcing Hype Cycle replaced hardcoded seed with live price observation data.
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